From e5ea49daff4208a60e5e334215b41c60fc135813 Mon Sep 17 00:00:00 2001 From: Thomas Citharel Date: Fri, 1 Mar 2019 12:57:22 +0100 Subject: [PATCH] Refactor Atom feed caching Signed-off-by: Thomas Citharel Fixes Fix tests Fix tests --- lib/mobilizon/application.ex | 28 +++++- .../controllers/activity_pub_controller.ex | 4 - .../controllers/feed_controller.ex | 95 +------------------ lib/mobilizon_web/router.ex | 10 +- lib/service/feed.ex | 94 ++++++++++++++++++ mix.exs | 3 +- mix.lock | 5 +- .../controllers/feed_controller_test.exs | 43 +++++++-- 8 files changed, 169 insertions(+), 113 deletions(-) create mode 100644 lib/service/feed.ex diff --git a/lib/mobilizon/application.ex b/lib/mobilizon/application.ex index 23019a318..bfe420ce1 100644 --- a/lib/mobilizon/application.ex +++ b/lib/mobilizon/application.ex @@ -3,6 +3,7 @@ defmodule Mobilizon.Application do The Mobilizon application """ use Application + import Cachex.Spec # See https://hexdocs.pm/elixir/Application.html # for more information on OTP Applications @@ -17,7 +18,32 @@ defmodule Mobilizon.Application do supervisor(MobilizonWeb.Endpoint, []), # Start your own worker by calling: Mobilizon.Worker.start_link(arg1, arg2, arg3) # worker(Mobilizon.Worker, [arg1, arg2, arg3]), - worker(Cachex, [:mobilizon, []]), + worker( + Cachex, + [ + :feed, + [ + limit: 2500, + expiration: + expiration( + default: :timer.minutes(60), + interval: :timer.seconds(60) + ), + fallback: fallback(default: &Mobilizon.Service.Feed.create_cache/1) + ] + ], + id: :cache_feed + ), + worker( + Cachex, + [ + :json, + [ + limit: 2500 + ] + ], + id: :cache_actor + ), worker(Guardian.DB.Token.SweeperServer, []), worker(Mobilizon.Service.Federator, []) ] diff --git a/lib/mobilizon_web/controllers/activity_pub_controller.ex b/lib/mobilizon_web/controllers/activity_pub_controller.ex index 631091bcf..c7c6a9636 100644 --- a/lib/mobilizon_web/controllers/activity_pub_controller.ex +++ b/lib/mobilizon_web/controllers/activity_pub_controller.ex @@ -21,10 +21,6 @@ defmodule MobilizonWeb.ActivityPubController do "application/activity+json, application/ld+json" ] - def actor(conn, %{"name" => _name, "_format" => "atom"} = params) do - MobilizonWeb.FeedController.actor(conn, params) - end - def actor(conn, %{"name" => name}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do if conn |> get_req_header("accept") |> is_ap_header() do diff --git a/lib/mobilizon_web/controllers/feed_controller.ex b/lib/mobilizon_web/controllers/feed_controller.ex index 30c7b4713..66c629664 100644 --- a/lib/mobilizon_web/controllers/feed_controller.ex +++ b/lib/mobilizon_web/controllers/feed_controller.ex @@ -4,102 +4,17 @@ defmodule MobilizonWeb.FeedController do """ use MobilizonWeb, :controller - alias Mobilizon.Actors - alias Mobilizon.Actors.Actor - alias Mobilizon.Events - alias Mobilizon.Events.Event - alias Atomex.{Feed, Entry} - import MobilizonWeb.Gettext - - @version Mix.Project.config()[:version] - def version(), do: @version - - def actor(conn, %{"name" => name, "_format" => format}) when format in ["atom"] do - name = String.replace_suffix(name, ".atom", "") - + def actor(conn, %{"name" => name, "format" => "atom"}) do with {status, data} when status in [:ok, :commit] <- - Cachex.fetch(:mobilizon, "actor_" <> format <> "_" <> name, &create_cache/1) do + Cachex.fetch(:feed, "actor_" <> name) do conn |> put_resp_content_type("application/atom+xml") |> send_resp(200, data) else _err -> - send_resp(conn, 404, "Not found") - end - end - - @spec create_cache(String.t()) :: {:commit, String.t()} | {:ignore, any()} - defp create_cache(key) do - with ["actor", type, name] <- String.split(key, "_", parts: 3), - {:ok, res} <- fetch_actor_event_feed(type, name) do - {:commit, res} - else - err -> - {:ignore, err} - end - end - - @spec fetch_actor_event_feed(String.t(), String.t()) :: String.t() - defp fetch_actor_event_feed(type, name) do - with %Actor{} = actor <- Actors.get_local_actor_by_name(name), - {:ok, events, _count} <- Events.get_public_events_for_actor(actor) do - {:ok, build_actor_feed(actor, events, type)} - else - err -> - {:error, err} - end - end - - @spec build_actor_feed(Actor.t(), list(), String.t()) :: String.t() - defp build_actor_feed(%Actor{} = actor, events, type) do - display_name = Actor.display_name(actor) - - # Title uses default instance language - feed = - Feed.new( - actor.url <> ".rss", - DateTime.utc_now(), - gettext("%{actor}'s public events feed", actor: display_name) - ) - |> Feed.author(display_name, uri: actor.url) - |> Feed.link(actor.url <> "." <> type, rel: "self") - |> Feed.link(actor.url, rel: "alternate") - |> Feed.generator("Mobilizon", uri: "https://joinmobilizon.org", version: version()) - |> Feed.entries(Enum.map(events, &get_entry/1)) - - feed = if actor.avatar_url, do: Feed.icon(feed, actor.avatar_url), else: feed - - feed = - if actor.banner_url, - do: Feed.logo(feed, actor.banner_url), - else: feed - - feed - |> Feed.build() - |> Atomex.generate_document() - end - - defp get_entry(%Event{} = event) do - with {:ok, html, []} <- Earmark.as_html(event.description) do - entry = - Entry.new(event.url, event.inserted_at, event.title) - |> Entry.link(event.url, rel: "alternate", type: "text/html") - |> Entry.content({:cdata, html}, type: "html") - - entry = if event.publish_at, do: Entry.published(entry, event.publish_at), else: entry - - # Add tags - entry = - event.tags - |> Enum.map(& &1.title) - |> Enum.uniq() - |> Enum.reduce(entry, fn tag, acc -> Entry.category(acc, tag) end) - - Entry.build(entry) - else - {:error, _html, error_messages} -> - require Logger - Logger.error("Unable to produce HTML for Markdown", details: inspect(error_messages)) + conn + |> put_resp_content_type("text/html") + |> send_file(404, "priv/static/index.html") end end end diff --git a/lib/mobilizon_web/router.ex b/lib/mobilizon_web/router.ex index 129ae2cb9..e41a0cdb0 100644 --- a/lib/mobilizon_web/router.ex +++ b/lib/mobilizon_web/router.ex @@ -22,9 +22,8 @@ defmodule MobilizonWeb.Router do plug(:accepts, ["activity-json", "html"]) end - pipeline :activity_pub_rss do - plug(TrailingFormatPlug) - plug(:accepts, ["activity-json", "html", "atom"]) + pipeline :rss do + plug(:accepts, ["atom", "html"]) end pipeline :browser do @@ -57,14 +56,15 @@ defmodule MobilizonWeb.Router do end scope "/", MobilizonWeb do - pipe_through(:activity_pub_rss) + pipe_through(:rss) - get("/@:name", ActivityPubController, :actor) + get("/@:name/feed/:format", FeedController, :actor) end scope "/", MobilizonWeb do pipe_through(:activity_pub) + get("/@:name", ActivityPubController, :actor) get("/@:name/outbox", ActivityPubController, :outbox) get("/@:name/following", ActivityPubController, :following) get("/@:name/followers", ActivityPubController, :followers) diff --git a/lib/service/feed.ex b/lib/service/feed.ex new file mode 100644 index 000000000..d63611154 --- /dev/null +++ b/lib/service/feed.ex @@ -0,0 +1,94 @@ +defmodule Mobilizon.Service.Feed do + @moduledoc """ + Serve Atom Syndication Feeds + """ + + alias Mobilizon.Actors + alias Mobilizon.Actors.Actor + alias Mobilizon.Events + alias Mobilizon.Events.Event + alias Atomex.{Feed, Entry} + import MobilizonWeb.Gettext + alias MobilizonWeb.Router.Helpers, as: Routes + alias MobilizonWeb.Endpoint + + @version Mix.Project.config()[:version] + def version(), do: @version + + @spec create_cache(String.t()) :: {:commit, String.t()} | {:ignore, any()} + def create_cache("actor_" <> name) do + with {:ok, res} <- fetch_actor_event_feed(name) do + {:commit, res} + else + err -> + {:ignore, err} + end + end + + @spec fetch_actor_event_feed(String.t()) :: String.t() + defp fetch_actor_event_feed(name) do + with %Actor{} = actor <- Actors.get_local_actor_by_name(name), + {:ok, events, _count} <- Events.get_public_events_for_actor(actor) do + {:ok, build_actor_feed(actor, events)} + else + err -> + {:error, err} + end + end + + # Build an atom feed from actor and it's public events + @spec build_actor_feed(Actor.t(), list()) :: String.t() + defp build_actor_feed(%Actor{} = actor, events) do + display_name = Actor.display_name(actor) + self_url = Routes.feed_url(Endpoint, :actor, actor.preferred_username, "atom") |> URI.decode() + + # Title uses default instance language + feed = + Feed.new( + self_url, + DateTime.utc_now(), + gettext("%{actor}'s public events feed", actor: display_name) + ) + |> Feed.author(display_name, uri: actor.url) + |> Feed.link(self_url, rel: "self") + |> Feed.link(actor.url, rel: "alternate") + |> Feed.generator("Mobilizon", uri: "https://joinmobilizon.org", version: version()) + |> Feed.entries(Enum.map(events, &get_entry/1)) + + feed = if actor.avatar_url, do: Feed.icon(feed, actor.avatar_url), else: feed + + feed = + if actor.banner_url, + do: Feed.logo(feed, actor.banner_url), + else: feed + + feed + |> Feed.build() + |> Atomex.generate_document() + end + + # Create an entry for the Atom feed + @spec get_entry(Event.t()) :: any() + defp get_entry(%Event{} = event) do + with {:ok, html, []} <- Earmark.as_html(event.description) do + entry = + Entry.new(event.url, event.inserted_at, event.title) + |> Entry.link(event.url, rel: "alternate", type: "text/html") + |> Entry.content({:cdata, html}, type: "html") + + entry = if event.publish_at, do: Entry.published(entry, event.publish_at), else: entry + + # Add tags + entry = + event.tags + |> Enum.uniq() + |> Enum.reduce(entry, fn tag, acc -> Entry.category(acc, tag.slug, label: tag.title) end) + + Entry.build(entry) + else + {:error, _html, error_messages} -> + require Logger + Logger.error("Unable to produce HTML for Markdown", details: inspect(error_messages)) + end + end +end diff --git a/mix.exs b/mix.exs index 747258f5c..1a4c3e92c 100644 --- a/mix.exs +++ b/mix.exs @@ -87,7 +87,6 @@ defmodule Mobilizon.Mixfile do {:plug_cowboy, "~> 2.0"}, {:atomex, "0.3.0"}, {:cachex, "~> 3.1"}, - {:trailing_format_plug, "~> 0.0.5"}, {:earmark, "~> 1.3.1"}, # Dev and test dependencies {:phoenix_live_reload, "~> 1.2", only: :dev}, @@ -100,7 +99,7 @@ defmodule Mobilizon.Mixfile do {:exvcr, "~> 0.10", only: :test}, {:credo, "~> 1.0.0", only: [:dev, :test], runtime: false}, {:mock, "~> 0.3.0", only: :test}, - {:feeder_ex, "~> 1.1", only: :test} + {:elixir_feed_parser, "~> 2.1.0", only: :test} ] end diff --git a/mix.lock b/mix.lock index 7f87b78f2..329557d03 100644 --- a/mix.lock +++ b/mix.lock @@ -29,13 +29,14 @@ "ecto_autoslug_field": {:hex, :ecto_autoslug_field, "1.0.0", "577eed25e6d045b8d783f82c9872f97c3a84017a4feae50eaf3cf4e1334a19e2", [:mix], [{:ecto, ">= 2.1.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:slugger, ">= 0.2.0", [hex: :slugger, repo: "hexpm", optional: false]}], "hexpm"}, "ecto_enum": {:hex, :ecto_enum, "1.2.0", "9ead3ee04efc4cb68a50560a9d9ebb665dd697f957f1c3df8e81bf863cf7a4e9", [:mix], [{:ecto, ">= 2.0.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:mariaex, ">= 0.0.0", [hex: :mariaex, repo: "hexpm", optional: true]}, {:postgrex, ">= 0.0.0", [hex: :postgrex, repo: "hexpm", optional: true]}], "hexpm"}, "ecto_sql": {:hex, :ecto_sql, "3.0.5", "7e44172b4f7aca4469f38d7f6a3da394dbf43a1bcf0ca975e958cb957becd74e", [:mix], [{:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.0.6", [hex: :ecto, repo: "hexpm", optional: false]}, {:mariaex, "~> 0.9.1", [hex: :mariaex, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.14.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.3.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm"}, + "elixir_feed_parser": {:hex, :elixir_feed_parser, "2.1.0", "bb96fb6422158dc7ad59de62ef211cc69d264acbbe63941a64a5dce97bbbc2e6", [:mix], [{:timex, "~> 3.4", [hex: :timex, repo: "hexpm", optional: false]}], "hexpm"}, "elixir_make": {:hex, :elixir_make, "0.5.2", "96a28c79f5b8d34879cd95ebc04d2a0d678cfbbd3e74c43cb63a76adf0ee8054", [:mix], [], "hexpm"}, "erlex": {:hex, :erlex, "0.2.1", "cee02918660807cbba9a7229cae9b42d1c6143b768c781fa6cee1eaf03ad860b", [:mix], [], "hexpm"}, "eternal": {:hex, :eternal, "1.2.1", "d5b6b2499ba876c57be2581b5b999ee9bdf861c647401066d3eeed111d096bc4", [:mix], [], "hexpm"}, "ex_crypto": {:hex, :ex_crypto, "0.10.0", "af600a89b784b36613a989da6e998c1b200ff1214c3cfbaf8deca4aa2f0a1739", [:mix], [{:poison, ">= 2.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"}, "ex_doc": {:hex, :ex_doc, "0.19.3", "3c7b0f02851f5fc13b040e8e925051452e41248f685e40250d7e40b07b9f8c10", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"}, "ex_ical": {:hex, :ex_ical, "0.2.0", "4b928b554614704016cc0c9ee226eb854da9327a1cc460457621ceacb1ac29a6", [:mix], [{:timex, "~> 3.1", [hex: :timex, repo: "hexpm", optional: false]}], "hexpm"}, - "ex_machina": {:hex, :ex_machina, "2.2.2", "d84217a6fb7840ff771d2561b8aa6d74a0d8968e4b10ecc0d7e9890dc8fb1c6a", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm"}, + "ex_machina": {:hex, :ex_machina, "2.3.0", "92a5ad0a8b10ea6314b876a99c8c9e3f25f4dde71a2a835845b136b9adaf199a", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm"}, "ex_unit_notifier": {:hex, :ex_unit_notifier, "0.1.4", "36a2dcab829f506e01bf17816590680dd1474407926d43e64c1263e627c364b8", [:mix], [], "hexpm"}, "exactor": {:hex, :exactor, "2.2.4", "5efb4ddeb2c48d9a1d7c9b465a6fffdd82300eb9618ece5d34c3334d5d7245b1", [:mix], [], "hexpm"}, "excoveralls": {:hex, :excoveralls, "0.10.5", "7c912c4ec0715a6013647d835c87cde8154855b9b84e256bc7a63858d5f284e3", [:mix], [{:hackney, "~> 1.13", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"}, @@ -43,7 +44,6 @@ "exjsx": {:hex, :exjsx, "4.0.0", "60548841e0212df401e38e63c0078ec57b33e7ea49b032c796ccad8cde794b5c", [:mix], [{:jsx, "~> 2.8.0", [hex: :jsx, repo: "hexpm", optional: false]}], "hexpm"}, "exvcr": {:hex, :exvcr, "0.10.3", "1ae3b97560430acfa88ebc737c85b2b7a9dbacd8a2b26789a19718b51ae3522c", [:mix], [{:exactor, "~> 2.2", [hex: :exactor, repo: "hexpm", optional: false]}, {:exjsx, "~> 4.0", [hex: :exjsx, repo: "hexpm", optional: false]}, {:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: true]}, {:httpotion, "~> 3.1", [hex: :httpotion, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:meck, "~> 0.8", [hex: :meck, repo: "hexpm", optional: false]}], "hexpm"}, "feeder": {:hex, :feeder, "2.2.4", "56ec535cf2f79719bc53b5c2abe5f6cf481fc01e5ae6229ab7cc829644f039ec", [:make], [], "hexpm"}, - "feeder_ex": {:hex, :feeder_ex, "1.1.0", "0be3732255cdb45dec949e0ede6852b5261c9ff173360e8274a6ac65183b2b55", [:mix], [{:feeder, "~> 2.2", [hex: :feeder, repo: "hexpm", optional: false]}], "hexpm"}, "file_system": {:hex, :file_system, "0.2.6", "fd4dc3af89b9ab1dc8ccbcc214a0e60c41f34be251d9307920748a14bf41f1d3", [:mix], [], "hexpm"}, "gen_smtp": {:hex, :gen_smtp, "0.12.0", "97d44903f5ca18ca85cb39aee7d9c77e98d79804bbdef56078adcf905cb2ef00", [:rebar3], [], "hexpm"}, "geo": {:hex, :geo, "3.1.0", "727e005262430d037e870ff364e65d80ca5ca21d5ac8eddd57a1ada72c3f83b0", [:mix], [], "hexpm"}, @@ -92,7 +92,6 @@ "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"}, "telemetry": {:hex, :telemetry, "0.3.0", "099a7f3ce31e4780f971b4630a3c22ec66d22208bc090fe33a2a3a6a67754a73", [:rebar3], [], "hexpm"}, "timex": {:hex, :timex, "3.5.0", "b0a23167da02d0fe4f1a4e104d1f929a00d348502b52432c05de875d0b9cffa5", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm"}, - "trailing_format_plug": {:hex, :trailing_format_plug, "0.0.7", "64b877f912cf7273bed03379936df39894149e35137ac9509117e59866e10e45", [:mix], [{:plug, "> 0.12.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"}, "tzdata": {:hex, :tzdata, "0.5.19", "7962a3997bf06303b7d1772988ede22260f3dae1bf897408ebdac2b4435f4e6a", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"}, "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"}, "unsafe": {:hex, :unsafe, "1.0.1", "a27e1874f72ee49312e0a9ec2e0b27924214a05e3ddac90e91727bc76f8613d8", [:mix], [], "hexpm"}, diff --git a/test/mobilizon_web/controllers/feed_controller_test.exs b/test/mobilizon_web/controllers/feed_controller_test.exs index 92eca1de3..c1ef12ca9 100644 --- a/test/mobilizon_web/controllers/feed_controller_test.exs +++ b/test/mobilizon_web/controllers/feed_controller_test.exs @@ -1,37 +1,64 @@ defmodule MobilizonWeb.FeedControllerTest do use MobilizonWeb.ConnCase import Mobilizon.Factory + alias MobilizonWeb.Router.Helpers, as: Routes + alias MobilizonWeb.Endpoint describe "/@:preferred_username.atom" do test "it returns an RSS representation of the actor's public events", %{conn: conn} do actor = insert(:actor) - event1 = insert(:event, organizer_actor: actor) - event2 = insert(:event, organizer_actor: actor) + tag1 = insert(:tag, title: "RSS", slug: "rss") + tag2 = insert(:tag, title: "ATOM", slug: "atom") + event1 = insert(:event, organizer_actor: actor, tags: [tag1]) + event2 = insert(:event, organizer_actor: actor, tags: [tag1, tag2]) conn = conn - |> put_req_header("accept", "application/atom+xml") - |> get("/@#{actor.preferred_username}.atom") + |> get( + Routes.feed_url(Endpoint, :actor, actor.preferred_username, "atom") + |> URI.decode() + ) assert response(conn, 200) =~ "" assert response_content_type(conn, :xml) =~ "charset=utf-8" - {:ok, feed, _} = FeederEx.parse(conn.resp_body) + {:ok, feed} = ElixirFeedParser.parse(conn.resp_body) assert feed.title == actor.preferred_username <> "'s public events feed" - Enum.each(feed.entries, fn entry -> + [entry1, entry2] = entries = feed.entries + + Enum.each(entries, fn entry -> assert entry.title in [event1.title, event2.title] end) + + assert entry1.categories == [tag2.slug, tag1.slug] + assert entry2.categories == [tag1.slug] + end + + test "it returns an RSS representation of the actor's public events with the proper accept header", + %{conn: conn} do + actor = insert(:actor) + + conn = + conn + |> put_req_header("accept", "application/atom+xml") + |> get( + Routes.feed_url(Endpoint, :actor, actor.preferred_username, "atom") + |> URI.decode() + ) + + assert response(conn, 200) =~ "" + assert response_content_type(conn, :xml) =~ "charset=utf-8" end test "it doesn't return anything for an not existing actor", %{conn: conn} do conn = conn |> put_req_header("accept", "application/atom+xml") - |> get("/@notexistent.atom") + |> get("/@notexistent/feed/atom") - assert response(conn, 404) == "Not found" + assert response(conn, 404) end end end