From d8728580468ecf876e531440fa31aef6a3e33f7b Mon Sep 17 00:00:00 2001
From: "Haelwenn (lanodan) Monnier" <contact@hacktivis.me>
Date: Tue, 1 Sep 2020 12:48:39 +0200
Subject: [PATCH 01/14] Fix removing an account from a list

Mastodon (Frontend) changed a different method for deletes,
keeping old format as mastodon documentation is too loose
---
 .../web/api_spec/operations/list_operation.ex | 20 +++++++++++++------
 .../controllers/list_controller.ex            | 13 ++++++++++++
 .../controllers/list_controller_test.exs      | 20 ++++++++++++++++++-
 3 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/lib/pleroma/web/api_spec/operations/list_operation.ex b/lib/pleroma/web/api_spec/operations/list_operation.ex
index c88ed5dd0..15039052e 100644
--- a/lib/pleroma/web/api_spec/operations/list_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/list_operation.ex
@@ -114,7 +114,7 @@ def add_to_list_operation do
       description: "Add accounts to the given list.",
       operationId: "ListController.add_to_list",
       parameters: [id_param()],
-      requestBody: add_remove_accounts_request(),
+      requestBody: add_remove_accounts_request(true),
       security: [%{"oAuth" => ["write:lists"]}],
       responses: %{
         200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
@@ -127,8 +127,16 @@ def remove_from_list_operation do
       tags: ["Lists"],
       summary: "Remove accounts from list",
       operationId: "ListController.remove_from_list",
-      parameters: [id_param()],
-      requestBody: add_remove_accounts_request(),
+      parameters: [
+        id_param(),
+        Operation.parameter(
+          :account_ids,
+          :query,
+          %Schema{type: :array, items: %Schema{type: :string}},
+          "Array of account IDs"
+        )
+      ],
+      requestBody: add_remove_accounts_request(false),
       security: [%{"oAuth" => ["write:lists"]}],
       responses: %{
         200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
@@ -171,7 +179,7 @@ defp create_update_request do
     )
   end
 
-  defp add_remove_accounts_request do
+  defp add_remove_accounts_request(required) when is_boolean(required) do
     request_body(
       "Parameters",
       %Schema{
@@ -180,9 +188,9 @@ defp add_remove_accounts_request do
         properties: %{
           account_ids: %Schema{type: :array, description: "Array of account IDs", items: FlakeID}
         },
-        required: [:account_ids]
+        required: required && [:account_ids]
       },
-      required: true
+      required: required
     )
   end
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/list_controller.ex b/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
index acdc76fd2..4df13cb81 100644
--- a/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
@@ -86,6 +86,19 @@ def remove_from_list(
     json(conn, %{})
   end
 
+  def remove_from_list(
+        %{assigns: %{list: list}, params: %{account_ids: account_ids}} = conn,
+        _
+      ) do
+    Enum.each(account_ids, fn account_id ->
+      with %User{} = followed <- User.get_cached_by_id(account_id) do
+        Pleroma.List.unfollow(list, followed)
+      end
+    end)
+
+    json(conn, %{})
+  end
+
   defp list_by_id_and_user(%{assigns: %{user: user}, params: %{id: id}} = conn, _) do
     case Pleroma.List.get(id, user) do
       %Pleroma.List{} = list -> assign(conn, :list, list)
diff --git a/test/web/mastodon_api/controllers/list_controller_test.exs b/test/web/mastodon_api/controllers/list_controller_test.exs
index 57a9ef4a4..091ec006c 100644
--- a/test/web/mastodon_api/controllers/list_controller_test.exs
+++ b/test/web/mastodon_api/controllers/list_controller_test.exs
@@ -67,7 +67,7 @@ test "adding users to a list" do
     assert following == [other_user.follower_address]
   end
 
-  test "removing users from a list" do
+  test "removing users from a list, body params" do
     %{user: user, conn: conn} = oauth_access(["write:lists"])
     other_user = insert(:user)
     third_user = insert(:user)
@@ -85,6 +85,24 @@ test "removing users from a list" do
     assert following == [third_user.follower_address]
   end
 
+  test "removing users from a list, query params" do
+    %{user: user, conn: conn} = oauth_access(["write:lists"])
+    other_user = insert(:user)
+    third_user = insert(:user)
+    {:ok, list} = Pleroma.List.create("name", user)
+    {:ok, list} = Pleroma.List.follow(list, other_user)
+    {:ok, list} = Pleroma.List.follow(list, third_user)
+
+    assert %{} ==
+             conn
+             |> put_req_header("content-type", "application/json")
+             |> delete("/api/v1/lists/#{list.id}/accounts?account_ids[]=#{other_user.id}")
+             |> json_response_and_validate_schema(:ok)
+
+    %Pleroma.List{following: following} = Pleroma.List.get(list.id, user)
+    assert following == [third_user.follower_address]
+  end
+
   test "listing users in a list" do
     %{user: user, conn: conn} = oauth_access(["read:lists"])
     other_user = insert(:user)

From 03d06062ab8feffbf7b03ecb7ff86c4a42af79ef Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Tue, 1 Sep 2020 19:12:45 +0300
Subject: [PATCH 02/14] don't fail on url fetch

---
 lib/pleroma/web/rich_media/parser.ex          | 44 ++++++++++---------
 .../rich_media/parsers/ttl/aws_signed_url.ex  | 15 +++----
 test/web/rich_media/aws_signed_url_test.exs   |  2 +-
 test/web/rich_media/parser_test.exs           | 26 ++++++++---
 4 files changed, 49 insertions(+), 38 deletions(-)

diff --git a/lib/pleroma/web/rich_media/parser.ex b/lib/pleroma/web/rich_media/parser.ex
index ca592833f..e9aa2dd03 100644
--- a/lib/pleroma/web/rich_media/parser.ex
+++ b/lib/pleroma/web/rich_media/parser.ex
@@ -3,6 +3,8 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.RichMedia.Parser do
+  require Logger
+
   defp parsers do
     Pleroma.Config.get([:rich_media, :parsers])
   end
@@ -10,18 +12,19 @@ defp parsers do
   def parse(nil), do: {:error, "No URL provided"}
 
   if Pleroma.Config.get(:env) == :test do
+    @spec parse(String.t()) :: {:ok, map()} | {:error, any()}
     def parse(url), do: parse_url(url)
   else
+    @spec parse(String.t()) :: {:ok, map()} | {:error, any()}
     def parse(url) do
-      try do
-        Cachex.fetch!(:rich_media_cache, url, fn _ ->
-          {:commit, parse_url(url)}
-        end)
-        |> set_ttl_based_on_image(url)
-      rescue
-        e ->
-          {:error, "Cachex error: #{inspect(e)}"}
-      end
+      Cachex.fetch!(:rich_media_cache, url, fn _ ->
+        with {:ok, data} <- parse_url(url) do
+          {:commit, {:ok, data}}
+        else
+          error -> {:ignore, error}
+        end
+      end)
+      |> set_ttl_based_on_image(url)
     end
   end
 
@@ -47,9 +50,11 @@ def ttl(data, url) do
       config :pleroma, :rich_media,
         ttl_setters: [MyModule]
   """
+  @spec set_ttl_based_on_image({:ok, map()} | {:error, any()}, String.t()) ::
+          {:ok, map()} | {:error, any()}
   def set_ttl_based_on_image({:ok, data}, url) do
     with {:ok, nil} <- Cachex.ttl(:rich_media_cache, url),
-         ttl when is_number(ttl) <- get_ttl_from_image(data, url) do
+         {:ok, ttl} when is_number(ttl) <- get_ttl_from_image(data, url) do
       Cachex.expire_at(:rich_media_cache, url, ttl * 1000)
       {:ok, data}
     else
@@ -58,8 +63,14 @@ def set_ttl_based_on_image({:ok, data}, url) do
     end
   end
 
+  def set_ttl_based_on_image({:error, _} = error, _) do
+    Logger.error("parsing error: #{inspect(error)}")
+    error
+  end
+
   defp get_ttl_from_image(data, url) do
-    Pleroma.Config.get([:rich_media, :ttl_setters])
+    [:rich_media, :ttl_setters]
+    |> Pleroma.Config.get()
     |> Enum.reduce({:ok, nil}, fn
       module, {:ok, _ttl} ->
         module.ttl(data, url)
@@ -70,23 +81,16 @@ defp get_ttl_from_image(data, url) do
   end
 
   defp parse_url(url) do
-    try do
-      {:ok, %Tesla.Env{body: html}} = Pleroma.Web.RichMedia.Helpers.rich_media_get(url)
-
+    with {:ok, %Tesla.Env{body: html}} <- Pleroma.Web.RichMedia.Helpers.rich_media_get(url),
+         {:ok, html} <- Floki.parse_document(html) do
       html
-      |> parse_html()
       |> maybe_parse()
       |> Map.put("url", url)
       |> clean_parsed_data()
       |> check_parsed_data()
-    rescue
-      e ->
-        {:error, "Parsing error: #{inspect(e)} #{inspect(__STACKTRACE__)}"}
     end
   end
 
-  defp parse_html(html), do: Floki.parse_document!(html)
-
   defp maybe_parse(html) do
     Enum.reduce_while(parsers(), %{}, fn parser, acc ->
       case parser.parse(html, acc) do
diff --git a/lib/pleroma/web/rich_media/parsers/ttl/aws_signed_url.ex b/lib/pleroma/web/rich_media/parsers/ttl/aws_signed_url.ex
index 0dc1efdaf..c5aaea2d4 100644
--- a/lib/pleroma/web/rich_media/parsers/ttl/aws_signed_url.ex
+++ b/lib/pleroma/web/rich_media/parsers/ttl/aws_signed_url.ex
@@ -10,20 +10,15 @@ def ttl(data, _url) do
       |> parse_query_params()
       |> format_query_params()
       |> get_expiration_timestamp()
+    else
+      {:error, "Not aws signed url #{inspect(image)}"}
     end
   end
 
-  defp is_aws_signed_url(""), do: nil
-  defp is_aws_signed_url(nil), do: nil
-
-  defp is_aws_signed_url(image) when is_binary(image) do
+  defp is_aws_signed_url(image) when is_binary(image) and image != "" do
     %URI{host: host, query: query} = URI.parse(image)
 
-    if String.contains?(host, "amazonaws.com") and String.contains?(query, "X-Amz-Expires") do
-      image
-    else
-      nil
-    end
+    String.contains?(host, "amazonaws.com") and String.contains?(query, "X-Amz-Expires")
   end
 
   defp is_aws_signed_url(_), do: nil
@@ -46,6 +41,6 @@ defp get_expiration_timestamp(params) when is_map(params) do
       |> Map.get("X-Amz-Date")
       |> Timex.parse("{ISO:Basic:Z}")
 
-    Timex.to_unix(date) + String.to_integer(Map.get(params, "X-Amz-Expires"))
+    {:ok, Timex.to_unix(date) + String.to_integer(Map.get(params, "X-Amz-Expires"))}
   end
 end
diff --git a/test/web/rich_media/aws_signed_url_test.exs b/test/web/rich_media/aws_signed_url_test.exs
index b30f4400e..a21f3c935 100644
--- a/test/web/rich_media/aws_signed_url_test.exs
+++ b/test/web/rich_media/aws_signed_url_test.exs
@@ -21,7 +21,7 @@ test "s3 signed url is parsed correct for expiration time" do
     expire_time =
       Timex.parse!(timestamp, "{ISO:Basic:Z}") |> Timex.to_unix() |> Kernel.+(valid_till)
 
-    assert expire_time == Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl.ttl(metadata, url)
+    assert {:ok, expire_time} == Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl.ttl(metadata, url)
   end
 
   test "s3 signed url is parsed and correct ttl is set for rich media" do
diff --git a/test/web/rich_media/parser_test.exs b/test/web/rich_media/parser_test.exs
index 420a612c6..1e09cbf84 100644
--- a/test/web/rich_media/parser_test.exs
+++ b/test/web/rich_media/parser_test.exs
@@ -5,6 +5,8 @@
 defmodule Pleroma.Web.RichMedia.ParserTest do
   use ExUnit.Case, async: true
 
+  alias Pleroma.Web.RichMedia.Parser
+
   setup do
     Tesla.Mock.mock(fn
       %{
@@ -48,23 +50,29 @@ defmodule Pleroma.Web.RichMedia.ParserTest do
 
       %{method: :get, url: "http://example.com/empty"} ->
         %Tesla.Env{status: 200, body: "hello"}
+
+      %{method: :get, url: "http://example.com/malformed"} ->
+        %Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/malformed-data.html")}
+
+      %{method: :get, url: "http://example.com/error"} ->
+        {:error, :overload}
     end)
 
     :ok
   end
 
   test "returns error when no metadata present" do
-    assert {:error, _} = Pleroma.Web.RichMedia.Parser.parse("http://example.com/empty")
+    assert {:error, _} = Parser.parse("http://example.com/empty")
   end
 
   test "doesn't just add a title" do
-    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/non-ogp") ==
+    assert Parser.parse("http://example.com/non-ogp") ==
              {:error,
               "Found metadata was invalid or incomplete: %{\"url\" => \"http://example.com/non-ogp\"}"}
   end
 
   test "parses ogp" do
-    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/ogp") ==
+    assert Parser.parse("http://example.com/ogp") ==
              {:ok,
               %{
                 "image" => "http://ia.media-imdb.com/images/rock.jpg",
@@ -77,7 +85,7 @@ test "parses ogp" do
   end
 
   test "falls back to <title> when ogp:title is missing" do
-    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/ogp-missing-title") ==
+    assert Parser.parse("http://example.com/ogp-missing-title") ==
              {:ok,
               %{
                 "image" => "http://ia.media-imdb.com/images/rock.jpg",
@@ -90,7 +98,7 @@ test "falls back to <title> when ogp:title is missing" do
   end
 
   test "parses twitter card" do
-    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/twitter-card") ==
+    assert Parser.parse("http://example.com/twitter-card") ==
              {:ok,
               %{
                 "card" => "summary",
@@ -103,7 +111,7 @@ test "parses twitter card" do
   end
 
   test "parses OEmbed" do
-    assert Pleroma.Web.RichMedia.Parser.parse("http://example.com/oembed") ==
+    assert Parser.parse("http://example.com/oembed") ==
              {:ok,
               %{
                 "author_name" => "‮‭‬bees‬",
@@ -132,6 +140,10 @@ test "parses OEmbed" do
   end
 
   test "rejects invalid OGP data" do
-    assert {:error, _} = Pleroma.Web.RichMedia.Parser.parse("http://example.com/malformed")
+    assert {:error, _} = Parser.parse("http://example.com/malformed")
+  end
+
+  test "returns error if getting page was not successful" do
+    assert {:error, :overload} = Parser.parse("http://example.com/error")
   end
 end

From 868057871ac041346d8367181f00f0b127b33945 Mon Sep 17 00:00:00 2001
From: Karol Kosek <krkk@krkk.ct8.pl>
Date: Tue, 1 Sep 2020 19:56:32 +0200
Subject: [PATCH 03/14] search: fix 'following' query parameter

The parameter included the accounts that are following you (followers)
instead of those you are actually following.

Co-Authored-By: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
---
 CHANGELOG.md               |  5 +++++
 lib/pleroma/user/search.ex |  2 +-
 test/user_search_test.exs  | 24 ++++++++++++------------
 3 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0850deed7..07bc6d77c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## unreleased-patch - ???
+
+### Fixed
+- Mastodon API: Search parameter `following` now correctly returns the followings rather than the followers
+
 ## [2.1.0] - 2020-08-28
 
 ### Changed
diff --git a/lib/pleroma/user/search.ex b/lib/pleroma/user/search.ex
index d4fd31069..adbef7fb8 100644
--- a/lib/pleroma/user/search.ex
+++ b/lib/pleroma/user/search.ex
@@ -116,7 +116,7 @@ defp trigram_rank(query, query_string) do
   end
 
   defp base_query(_user, false), do: User
-  defp base_query(user, true), do: User.get_followers_query(user)
+  defp base_query(user, true), do: User.get_friends_query(user)
 
   defp filter_invisible_users(query) do
     from(q in query, where: q.invisible == false)
diff --git a/test/user_search_test.exs b/test/user_search_test.exs
index 559ba5966..01976bf58 100644
--- a/test/user_search_test.exs
+++ b/test/user_search_test.exs
@@ -109,22 +109,22 @@ 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"})
+    test "finds followings of user by partial name" do
+      lizz = insert(:user, %{name: "Lizz"})
+      jimi = insert(:user, %{name: "Jimi"})
+      following_lizz = insert(:user, %{name: "Jimi Hendrix"})
+      following_jimi = insert(:user, %{name: "Lizz Wright"})
+      follower_lizz = 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)
+      {:ok, lizz} = User.follow(lizz, following_lizz)
+      {:ok, _jimi} = User.follow(jimi, following_jimi)
+      {:ok, _follower_lizz} = User.follow(follower_lizz, lizz)
 
-      assert Enum.map(User.search("jimi", following: true, for_user: u1), & &1.id) == [
-               follower_jimi.id
+      assert Enum.map(User.search("jimi", following: true, for_user: lizz), & &1.id) == [
+               following_lizz.id
              ]
 
-      assert User.search("lizz", following: true, for_user: u1) == []
+      assert User.search("lizz", following: true, for_user: lizz) == []
     end
 
     test "find local and remote users for authenticated users" do

From c17d83cd7330d5c874f647a5224a3a130ed88fb0 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Wed, 19 Aug 2020 10:22:59 +0300
Subject: [PATCH 04/14] improvements and fixes for http requests

- fix for gun worker termination in some circumstances
- pool for http clients (ex_aws, tzdata)
- default pool timeouts for gun
- gun retries on gun_down messages
- s3 upload timeout if streaming enabled
---
 config/config.exs                         | 12 +++++---
 lib/pleroma/gun/connection_pool/worker.ex | 35 ++++++++++++++++-------
 lib/pleroma/http/adapter_helper.ex        | 16 +++++++----
 lib/pleroma/http/adapter_helper/gun.ex    | 18 ++++++------
 lib/pleroma/http/ex_aws.ex                |  2 ++
 lib/pleroma/http/tzdata.ex                |  4 +++
 lib/pleroma/uploaders/s3.ex               | 19 ++++++++----
 7 files changed, 70 insertions(+), 36 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 246712b9f..ea8869d48 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -740,19 +740,23 @@
 config :pleroma, :pools,
   federation: [
     size: 50,
-    max_waiting: 10
+    max_waiting: 10,
+    timeout: 10_000
   ],
   media: [
     size: 50,
-    max_waiting: 10
+    max_waiting: 10,
+    timeout: 10_000
   ],
   upload: [
     size: 25,
-    max_waiting: 5
+    max_waiting: 5,
+    timeout: 15_000
   ],
   default: [
     size: 10,
-    max_waiting: 2
+    max_waiting: 2,
+    timeout: 5_000
   ]
 
 config :pleroma, :hackney_pools,
diff --git a/lib/pleroma/gun/connection_pool/worker.ex b/lib/pleroma/gun/connection_pool/worker.ex
index fec9d0efa..c36332817 100644
--- a/lib/pleroma/gun/connection_pool/worker.ex
+++ b/lib/pleroma/gun/connection_pool/worker.ex
@@ -83,17 +83,25 @@ def handle_call(:remove_client, {client_pid, _}, %{key: key} = state) do
       end)
 
     {ref, state} = pop_in(state.client_monitors[client_pid])
-    Process.demonitor(ref)
-
-    timer =
-      if used_by == [] do
-        max_idle = Pleroma.Config.get([:connections_pool, :max_idle_time], 30_000)
-        Process.send_after(self(), :idle_close, max_idle)
+    # DOWN message can receive right after `remove_client` call and cause worker to terminate
+    state =
+      if is_nil(ref) do
+        state
       else
-        nil
+        Process.demonitor(ref)
+
+        timer =
+          if used_by == [] do
+            max_idle = Pleroma.Config.get([:connections_pool, :max_idle_time], 30_000)
+            Process.send_after(self(), :idle_close, max_idle)
+          else
+            nil
+          end
+
+        %{state | timer: timer}
       end
 
-    {:reply, :ok, %{state | timer: timer}, :hibernate}
+    {:reply, :ok, state, :hibernate}
   end
 
   @impl true
@@ -103,16 +111,21 @@ def handle_info(:idle_close, state) do
     {:stop, :normal, state}
   end
 
+  @impl true
+  def handle_info({:gun_up, _pid, _protocol}, state) do
+    {:noreply, state, :hibernate}
+  end
+
   # Gracefully shutdown if the connection got closed without any streams left
   @impl true
   def handle_info({:gun_down, _pid, _protocol, _reason, []}, state) do
     {:stop, :normal, state}
   end
 
-  # Otherwise, shutdown with an error
+  # Otherwise, wait for retry
   @impl true
-  def handle_info({:gun_down, _pid, _protocol, _reason, _killed_streams} = down_message, state) do
-    {:stop, {:error, down_message}, state}
+  def handle_info({:gun_down, _pid, _protocol, _reason, _killed_streams}, state) do
+    {:noreply, state, :hibernate}
   end
 
   @impl true
diff --git a/lib/pleroma/http/adapter_helper.ex b/lib/pleroma/http/adapter_helper.ex
index 9ec3836b0..740e6e9ff 100644
--- a/lib/pleroma/http/adapter_helper.ex
+++ b/lib/pleroma/http/adapter_helper.ex
@@ -10,6 +10,7 @@ defmodule Pleroma.HTTP.AdapterHelper do
 
   @type proxy_type() :: :socks4 | :socks5
   @type host() :: charlist() | :inet.ip_address()
+  @type pool() :: :federation | :upload | :media | :default
 
   alias Pleroma.Config
   alias Pleroma.HTTP.AdapterHelper
@@ -44,14 +45,13 @@ def maybe_add_proxy(opts, proxy), do: Keyword.put_new(opts, :proxy, proxy)
   @spec options(URI.t(), keyword()) :: keyword()
   def options(%URI{} = uri, opts \\ []) do
     @defaults
-    |> put_timeout()
     |> Keyword.merge(opts)
+    |> put_timeout()
     |> adapter_helper().options(uri)
   end
 
-  # For Hackney, this is the time a connection can stay idle in the pool.
-  # For Gun, this is the timeout to receive a message from Gun.
-  defp put_timeout(opts) do
+  @spec pool_timeout(pool()) :: non_neg_integer()
+  def pool_timeout(pool) do
     {config_key, default} =
       if adapter() == Tesla.Adapter.Gun do
         {:pools, Config.get([:pools, :default, :timeout], 5_000)}
@@ -59,9 +59,13 @@ defp put_timeout(opts) do
         {:hackney_pools, 10_000}
       end
 
-    timeout = Config.get([config_key, opts[:pool], :timeout], default)
+    Config.get([config_key, pool, :timeout], default)
+  end
 
-    Keyword.merge(opts, timeout: timeout)
+  # For Hackney, this is the time a connection can stay idle in the pool.
+  # For Gun, this is the timeout to receive a message from Gun.
+  defp put_timeout(opts) do
+    Keyword.put_new(opts, :timeout, pool_timeout(opts[:pool]))
   end
 
   def get_conn(uri, opts), do: adapter_helper().get_conn(uri, opts)
diff --git a/lib/pleroma/http/adapter_helper/gun.ex b/lib/pleroma/http/adapter_helper/gun.ex
index b4ff8306c..db0a298b3 100644
--- a/lib/pleroma/http/adapter_helper/gun.ex
+++ b/lib/pleroma/http/adapter_helper/gun.ex
@@ -5,6 +5,7 @@
 defmodule Pleroma.HTTP.AdapterHelper.Gun do
   @behaviour Pleroma.HTTP.AdapterHelper
 
+  alias Pleroma.Config
   alias Pleroma.Gun.ConnectionPool
   alias Pleroma.HTTP.AdapterHelper
 
@@ -14,7 +15,7 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
     connect_timeout: 5_000,
     domain_lookup_timeout: 5_000,
     tls_handshake_timeout: 5_000,
-    retry: 0,
+    retry: 1,
     retry_timeout: 1000,
     await_up_timeout: 5_000
   ]
@@ -22,10 +23,11 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
   @spec options(keyword(), URI.t()) :: keyword()
   def options(incoming_opts \\ [], %URI{} = uri) do
     proxy =
-      Pleroma.Config.get([:http, :proxy_url])
+      [:http, :proxy_url]
+      |> Config.get()
       |> AdapterHelper.format_proxy()
 
-    config_opts = Pleroma.Config.get([:http, :adapter], [])
+    config_opts = Config.get([:http, :adapter], [])
 
     @defaults
     |> Keyword.merge(config_opts)
@@ -37,8 +39,7 @@ def options(incoming_opts \\ [], %URI{} = uri) do
   defp add_scheme_opts(opts, %{scheme: "http"}), do: opts
 
   defp add_scheme_opts(opts, %{scheme: "https"}) do
-    opts
-    |> Keyword.put(:certificates_verification, true)
+    Keyword.put(opts, :certificates_verification, true)
   end
 
   @spec get_conn(URI.t(), keyword()) :: {:ok, keyword()} | {:error, atom()}
@@ -51,11 +52,11 @@ def get_conn(uri, opts) do
 
   @prefix Pleroma.Gun.ConnectionPool
   def limiter_setup do
-    wait = Pleroma.Config.get([:connections_pool, :connection_acquisition_wait])
-    retries = Pleroma.Config.get([:connections_pool, :connection_acquisition_retries])
+    wait = Config.get([:connections_pool, :connection_acquisition_wait])
+    retries = Config.get([:connections_pool, :connection_acquisition_retries])
 
     :pools
-    |> Pleroma.Config.get([])
+    |> Config.get([])
     |> Enum.each(fn {name, opts} ->
       max_running = Keyword.get(opts, :size, 50)
       max_waiting = Keyword.get(opts, :max_waiting, 10)
@@ -69,7 +70,6 @@ def limiter_setup do
       case result do
         :ok -> :ok
         {:error, :existing} -> :ok
-        e -> raise e
       end
     end)
 
diff --git a/lib/pleroma/http/ex_aws.ex b/lib/pleroma/http/ex_aws.ex
index e53e64077..2fe8beafc 100644
--- a/lib/pleroma/http/ex_aws.ex
+++ b/lib/pleroma/http/ex_aws.ex
@@ -11,6 +11,8 @@ defmodule Pleroma.HTTP.ExAws do
 
   @impl true
   def request(method, url, body \\ "", headers \\ [], http_opts \\ []) do
+    http_opts = Keyword.put(http_opts, :adapter, pool: :upload)
+
     case HTTP.request(method, url, body, headers, http_opts) do
       {:ok, env} ->
         {:ok, %{status_code: env.status, headers: env.headers, body: env.body}}
diff --git a/lib/pleroma/http/tzdata.ex b/lib/pleroma/http/tzdata.ex
index 34bb253a7..7dd3352ff 100644
--- a/lib/pleroma/http/tzdata.ex
+++ b/lib/pleroma/http/tzdata.ex
@@ -11,6 +11,8 @@ defmodule Pleroma.HTTP.Tzdata do
 
   @impl true
   def get(url, headers, options) do
+    options = Keyword.put(options, :adapter, pool: :upload)
+
     with {:ok, %Tesla.Env{} = env} <- HTTP.get(url, headers, options) do
       {:ok, {env.status, env.headers, env.body}}
     end
@@ -18,6 +20,8 @@ def get(url, headers, options) do
 
   @impl true
   def head(url, headers, options) do
+    options = Keyword.put(options, :adapter, pool: :upload)
+
     with {:ok, %Tesla.Env{} = env} <- HTTP.head(url, headers, options) do
       {:ok, {env.status, env.headers}}
     end
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
index a13ff23b6..ed9794ca2 100644
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@@ -46,12 +46,19 @@ def put_file(%Pleroma.Upload{} = upload) do
 
     op =
       if streaming do
-        upload.tempfile
-        |> ExAws.S3.Upload.stream_file()
-        |> ExAws.S3.upload(bucket, s3_name, [
-          {:acl, :public_read},
-          {:content_type, upload.content_type}
-        ])
+        op =
+          upload.tempfile
+          |> ExAws.S3.Upload.stream_file()
+          |> ExAws.S3.upload(bucket, s3_name, [
+            {:acl, :public_read},
+            {:content_type, upload.content_type}
+          ])
+
+        # set s3 upload timeout to respect :upload pool timeout
+        # timeout should be slightly larger, so s3 can retry upload on fail
+        timeout = Pleroma.HTTP.AdapterHelper.pool_timeout(:upload) + 1_000
+        opts = Keyword.put(op.opts, :timeout, timeout)
+        Map.put(op, :opts, opts)
       else
         {:ok, file_data} = File.read(upload.tempfile)
 

From 5e8adf91b46c3f23ec423d53afccbb062df4a241 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Tue, 1 Sep 2020 11:30:56 +0300
Subject: [PATCH 05/14] don't overwrite passed pool option in http clients

---
 lib/pleroma/http/ex_aws.ex | 2 +-
 lib/pleroma/http/tzdata.ex | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/http/ex_aws.ex b/lib/pleroma/http/ex_aws.ex
index 2fe8beafc..c3f335c73 100644
--- a/lib/pleroma/http/ex_aws.ex
+++ b/lib/pleroma/http/ex_aws.ex
@@ -11,7 +11,7 @@ defmodule Pleroma.HTTP.ExAws do
 
   @impl true
   def request(method, url, body \\ "", headers \\ [], http_opts \\ []) do
-    http_opts = Keyword.put(http_opts, :adapter, pool: :upload)
+    http_opts = Keyword.put_new(http_opts, :adapter, pool: :upload)
 
     case HTTP.request(method, url, body, headers, http_opts) do
       {:ok, env} ->
diff --git a/lib/pleroma/http/tzdata.ex b/lib/pleroma/http/tzdata.ex
index 7dd3352ff..356799aab 100644
--- a/lib/pleroma/http/tzdata.ex
+++ b/lib/pleroma/http/tzdata.ex
@@ -11,7 +11,7 @@ defmodule Pleroma.HTTP.Tzdata do
 
   @impl true
   def get(url, headers, options) do
-    options = Keyword.put(options, :adapter, pool: :upload)
+    options = Keyword.put_new(options, :adapter, pool: :upload)
 
     with {:ok, %Tesla.Env{} = env} <- HTTP.get(url, headers, options) do
       {:ok, {env.status, env.headers, env.body}}
@@ -20,7 +20,7 @@ def get(url, headers, options) do
 
   @impl true
   def head(url, headers, options) do
-    options = Keyword.put(options, :adapter, pool: :upload)
+    options = Keyword.put_new(options, :adapter, pool: :upload)
 
     with {:ok, %Tesla.Env{} = env} <- HTTP.head(url, headers, options) do
       {:ok, {env.status, env.headers}}

From 79f65b4374908a32ebf39db176a30a01152a9141 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Wed, 2 Sep 2020 09:16:51 +0300
Subject: [PATCH 06/14] correct pool and uniform headers format

---
 lib/mix/tasks/pleroma/frontend.ex        | 4 +++-
 lib/pleroma/instances/instance.ex        | 4 +++-
 lib/pleroma/object/fetcher.ex            | 6 +++---
 lib/pleroma/web/rich_media/helpers.ex    | 2 +-
 lib/pleroma/web/web_finger/web_finger.ex | 4 ++--
 test/support/http_request_mock.ex        | 4 ++--
 6 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/lib/mix/tasks/pleroma/frontend.ex b/lib/mix/tasks/pleroma/frontend.ex
index 2adbf8d72..484af6da7 100644
--- a/lib/mix/tasks/pleroma/frontend.ex
+++ b/lib/mix/tasks/pleroma/frontend.ex
@@ -124,7 +124,9 @@ defp download_build(frontend_info, dest) do
     url = String.replace(frontend_info["build_url"], "${ref}", frontend_info["ref"])
 
     with {:ok, %{status: 200, body: zip_body}} <-
-           Pleroma.HTTP.get(url, [], timeout: 120_000, recv_timeout: 120_000) do
+           Pleroma.HTTP.get(url, [],
+             adapter: [pool: :media, timeout: 120_000, recv_timeout: 120_000]
+           ) do
       unzip(zip_body, dest)
     else
       e -> {:error, e}
diff --git a/lib/pleroma/instances/instance.ex b/lib/pleroma/instances/instance.ex
index a1f935232..711c42158 100644
--- a/lib/pleroma/instances/instance.ex
+++ b/lib/pleroma/instances/instance.ex
@@ -150,7 +150,9 @@ def get_or_update_favicon(%URI{host: host} = instance_uri) do
   defp scrape_favicon(%URI{} = instance_uri) do
     try do
       with {:ok, %Tesla.Env{body: html}} <-
-             Pleroma.HTTP.get(to_string(instance_uri), [{:Accept, "text/html"}]),
+             Pleroma.HTTP.get(to_string(instance_uri), [{"accept", "text/html"}],
+               adapter: [pool: :media]
+             ),
            favicon_rel <-
              html
              |> Floki.parse_document!()
diff --git a/lib/pleroma/object/fetcher.ex b/lib/pleroma/object/fetcher.ex
index 6fdbc8efd..374d8704a 100644
--- a/lib/pleroma/object/fetcher.ex
+++ b/lib/pleroma/object/fetcher.ex
@@ -164,12 +164,12 @@ defp make_signature(id, date) do
         date: date
       })
 
-    [{"signature", signature}]
+    {"signature", signature}
   end
 
   defp sign_fetch(headers, id, date) do
     if Pleroma.Config.get([:activitypub, :sign_object_fetches]) do
-      headers ++ make_signature(id, date)
+      [make_signature(id, date) | headers]
     else
       headers
     end
@@ -177,7 +177,7 @@ defp sign_fetch(headers, id, date) do
 
   defp maybe_date_fetch(headers, date) do
     if Pleroma.Config.get([:activitypub, :sign_object_fetches]) do
-      headers ++ [{"date", date}]
+      [{"date", date} | headers]
     else
       headers
     end
diff --git a/lib/pleroma/web/rich_media/helpers.ex b/lib/pleroma/web/rich_media/helpers.ex
index 6210f2c5a..2fb482b51 100644
--- a/lib/pleroma/web/rich_media/helpers.ex
+++ b/lib/pleroma/web/rich_media/helpers.ex
@@ -96,6 +96,6 @@ def rich_media_get(url) do
         @rich_media_options
       end
 
-    Pleroma.HTTP.get(url, headers, options)
+    Pleroma.HTTP.get(url, headers, adapter: options)
   end
 end
diff --git a/lib/pleroma/web/web_finger/web_finger.ex b/lib/pleroma/web/web_finger/web_finger.ex
index c4051e63e..6629f5356 100644
--- a/lib/pleroma/web/web_finger/web_finger.ex
+++ b/lib/pleroma/web/web_finger/web_finger.ex
@@ -136,12 +136,12 @@ def get_template_from_xml(body) do
 
   def find_lrdd_template(domain) do
     with {:ok, %{status: status, body: body}} when status in 200..299 <-
-           HTTP.get("http://#{domain}/.well-known/host-meta", []) do
+           HTTP.get("http://#{domain}/.well-known/host-meta") do
       get_template_from_xml(body)
     else
       _ ->
         with {:ok, %{body: body, status: status}} when status in 200..299 <-
-               HTTP.get("https://#{domain}/.well-known/host-meta", []) do
+               HTTP.get("https://#{domain}/.well-known/host-meta") do
           get_template_from_xml(body)
         else
           e -> {:error, "Can't find LRDD template: #{inspect(e)}"}
diff --git a/test/support/http_request_mock.ex b/test/support/http_request_mock.ex
index eeeba7880..a0ebf65d9 100644
--- a/test/support/http_request_mock.ex
+++ b/test/support/http_request_mock.ex
@@ -1350,11 +1350,11 @@ def get("https://relay.mastodon.host/actor", _, _, _) do
     {:ok, %Tesla.Env{status: 200, body: File.read!("test/fixtures/relay/relay.json")}}
   end
 
-  def get("http://localhost:4001/", _, "", Accept: "text/html") do
+  def get("http://localhost:4001/", _, "", [{"accept", "text/html"}]) do
     {:ok, %Tesla.Env{status: 200, body: File.read!("test/fixtures/tesla_mock/7369654.html")}}
   end
 
-  def get("https://osada.macgirvin.com/", _, "", Accept: "text/html") do
+  def get("https://osada.macgirvin.com/", _, "", [{"accept", "text/html"}]) do
     {:ok,
      %Tesla.Env{
        status: 200,

From 1c57ef44983e150f3cc016290fe99f159eb79cb0 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Wed, 2 Sep 2020 10:33:43 +0300
Subject: [PATCH 07/14] default pool for tz_data client

---
 lib/pleroma/http/tzdata.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/http/tzdata.ex b/lib/pleroma/http/tzdata.ex
index 356799aab..4539ac359 100644
--- a/lib/pleroma/http/tzdata.ex
+++ b/lib/pleroma/http/tzdata.ex
@@ -11,7 +11,7 @@ defmodule Pleroma.HTTP.Tzdata do
 
   @impl true
   def get(url, headers, options) do
-    options = Keyword.put_new(options, :adapter, pool: :upload)
+    options = Keyword.put_new(options, :adapter, pool: :default)
 
     with {:ok, %Tesla.Env{} = env} <- HTTP.get(url, headers, options) do
       {:ok, {env.status, env.headers, env.body}}
@@ -20,7 +20,7 @@ def get(url, headers, options) do
 
   @impl true
   def head(url, headers, options) do
-    options = Keyword.put_new(options, :adapter, pool: :upload)
+    options = Keyword.put_new(options, :adapter, pool: :default)
 
     with {:ok, %Tesla.Env{} = env} <- HTTP.head(url, headers, options) do
       {:ok, {env.status, env.headers}}

From 84fbf1616104c09e0f4f5442d86ca2c573ae4056 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Wed, 2 Sep 2020 10:50:51 +0300
Subject: [PATCH 08/14] timeout option moved to gun adapter helper

---
 lib/pleroma/http/adapter_helper.ex     | 23 ++---------------------
 lib/pleroma/http/adapter_helper/gun.ex | 15 +++++++++++++++
 lib/pleroma/uploaders/s3.ex            | 14 +++++++++-----
 3 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/lib/pleroma/http/adapter_helper.ex b/lib/pleroma/http/adapter_helper.ex
index 740e6e9ff..0728cbaa2 100644
--- a/lib/pleroma/http/adapter_helper.ex
+++ b/lib/pleroma/http/adapter_helper.ex
@@ -10,9 +10,7 @@ defmodule Pleroma.HTTP.AdapterHelper do
 
   @type proxy_type() :: :socks4 | :socks5
   @type host() :: charlist() | :inet.ip_address()
-  @type pool() :: :federation | :upload | :media | :default
 
-  alias Pleroma.Config
   alias Pleroma.HTTP.AdapterHelper
   require Logger
 
@@ -46,29 +44,12 @@ def maybe_add_proxy(opts, proxy), do: Keyword.put_new(opts, :proxy, proxy)
   def options(%URI{} = uri, opts \\ []) do
     @defaults
     |> Keyword.merge(opts)
-    |> put_timeout()
     |> adapter_helper().options(uri)
   end
 
-  @spec pool_timeout(pool()) :: non_neg_integer()
-  def pool_timeout(pool) do
-    {config_key, default} =
-      if adapter() == Tesla.Adapter.Gun do
-        {:pools, Config.get([:pools, :default, :timeout], 5_000)}
-      else
-        {:hackney_pools, 10_000}
-      end
-
-    Config.get([config_key, pool, :timeout], default)
-  end
-
-  # For Hackney, this is the time a connection can stay idle in the pool.
-  # For Gun, this is the timeout to receive a message from Gun.
-  defp put_timeout(opts) do
-    Keyword.put_new(opts, :timeout, pool_timeout(opts[:pool]))
-  end
-
+  @spec get_conn(URI.t(), keyword()) :: {:ok, keyword()} | {:error, atom()}
   def get_conn(uri, opts), do: adapter_helper().get_conn(uri, opts)
+
   defp adapter, do: Application.get_env(:tesla, :adapter)
 
   defp adapter_helper do
diff --git a/lib/pleroma/http/adapter_helper/gun.ex b/lib/pleroma/http/adapter_helper/gun.ex
index db0a298b3..02e20f2d1 100644
--- a/lib/pleroma/http/adapter_helper/gun.ex
+++ b/lib/pleroma/http/adapter_helper/gun.ex
@@ -20,6 +20,8 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
     await_up_timeout: 5_000
   ]
 
+  @type pool() :: :federation | :upload | :media | :default
+
   @spec options(keyword(), URI.t()) :: keyword()
   def options(incoming_opts \\ [], %URI{} = uri) do
     proxy =
@@ -34,6 +36,7 @@ def options(incoming_opts \\ [], %URI{} = uri) do
     |> add_scheme_opts(uri)
     |> AdapterHelper.maybe_add_proxy(proxy)
     |> Keyword.merge(incoming_opts)
+    |> put_timeout()
   end
 
   defp add_scheme_opts(opts, %{scheme: "http"}), do: opts
@@ -42,6 +45,18 @@ defp add_scheme_opts(opts, %{scheme: "https"}) do
     Keyword.put(opts, :certificates_verification, true)
   end
 
+  defp put_timeout(opts) do
+    # this is the timeout to receive a message from Gun
+    Keyword.put_new(opts, :timeout, pool_timeout(opts[:pool]))
+  end
+
+  @spec pool_timeout(pool()) :: non_neg_integer()
+  def pool_timeout(pool) do
+    default = Config.get([:pools, :default, :timeout], 5_000)
+
+    Config.get([:pools, pool, :timeout], default)
+  end
+
   @spec get_conn(URI.t(), keyword()) :: {:ok, keyword()} | {:error, atom()}
   def get_conn(uri, opts) do
     case ConnectionPool.get_conn(uri, opts) do
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
index ed9794ca2..6dbef9085 100644
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@@ -54,11 +54,15 @@ def put_file(%Pleroma.Upload{} = upload) do
             {:content_type, upload.content_type}
           ])
 
-        # set s3 upload timeout to respect :upload pool timeout
-        # timeout should be slightly larger, so s3 can retry upload on fail
-        timeout = Pleroma.HTTP.AdapterHelper.pool_timeout(:upload) + 1_000
-        opts = Keyword.put(op.opts, :timeout, timeout)
-        Map.put(op, :opts, opts)
+        if Application.get_env(:tesla, :adapter) == Tesla.Adapter.Gun do
+          # set s3 upload timeout to respect :upload pool timeout
+          # timeout should be slightly larger, so s3 can retry upload on fail
+          timeout = Pleroma.HTTP.AdapterHelper.Gun.pool_timeout(:upload) + 1_000
+          opts = Keyword.put(op.opts, :timeout, timeout)
+          Map.put(op, :opts, opts)
+        else
+          op
+        end
       else
         {:ok, file_data} = File.read(upload.tempfile)
 

From 46236d1d873473d95b11cd7bfdcaa284ea55a9ad Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Wed, 2 Sep 2020 12:42:25 +0300
Subject: [PATCH 09/14] html.ex: optimize external url extraction

By using a :not() selector and only extracting attributes from the
first match.
---
 lib/pleroma/html.ex | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/html.ex b/lib/pleroma/html.ex
index dc1b9b840..20b02f091 100644
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@@ -109,8 +109,9 @@ def extract_first_external_url(object, content) do
       result =
         content
         |> Floki.parse_fragment!()
-        |> Floki.filter_out("a.mention,a.hashtag,a.attachment,a[rel~=\"tag\"]")
-        |> Floki.attribute("a", "href")
+        |> Floki.find("a:not(.mention,.hashtag,.attachment,[rel~=\"tag\"])")
+        |> Enum.take(1)
+        |> Floki.attribute("href")
         |> Enum.at(0)
 
       {:commit, {:ok, result}}

From 19691389b92e617f1edad7d4e3168fe917d0a675 Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Wed, 2 Sep 2020 14:21:28 +0300
Subject: [PATCH 10/14] Rich media: Add failure tracking

---
 CHANGELOG.md                                |  3 ++
 config/config.exs                           |  1 +
 config/description.exs                      |  7 +++
 docs/configuration/cheatsheet.md            |  1 +
 lib/pleroma/web/rich_media/parser.ex        | 56 ++++++++++++---------
 test/web/rich_media/aws_signed_url_test.exs |  2 +-
 6 files changed, 46 insertions(+), 24 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07bc6d77c..4424c060f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## unreleased-patch - ???
 
+### Added
+- Rich media failure tracking (along with `:failure_backoff` option)
+
 ### Fixed
 - Mastodon API: Search parameter `following` now correctly returns the followings rather than the followers
 
diff --git a/config/config.exs b/config/config.exs
index ea8869d48..ed37b93c0 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -412,6 +412,7 @@
     Pleroma.Web.RichMedia.Parsers.TwitterCard,
     Pleroma.Web.RichMedia.Parsers.OEmbed
   ],
+  failure_backoff: 60_000,
   ttl_setters: [Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl]
 
 config :pleroma, :media_proxy,
diff --git a/config/description.exs b/config/description.exs
index 29a657333..5e08ba109 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -2385,6 +2385,13 @@
         suggestions: [
           Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl
         ]
+      },
+      %{
+        key: :failure_backoff,
+        type: :integer,
+        description:
+          "Amount of milliseconds after request failure, during which the request will not be retried.",
+        suggestions: [60_000]
       }
     ]
   },
diff --git a/docs/configuration/cheatsheet.md b/docs/configuration/cheatsheet.md
index 2f440adf4..a9a650fab 100644
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@@ -361,6 +361,7 @@ config :pleroma, Pleroma.Web.MediaProxy.Invalidation.Http,
 * `ignore_hosts`: list of hosts which will be ignored by the metadata parser. For example `["accounts.google.com", "xss.website"]`, defaults to `[]`.
 * `ignore_tld`: list TLDs (top-level domains) which will ignore for parse metadata. default is ["local", "localdomain", "lan"].
 * `parsers`: list of Rich Media parsers.
+* `failure_backoff`: Amount of milliseconds after request failure, during which the request will not be retried.
 
 ## HTTP server
 
diff --git a/lib/pleroma/web/rich_media/parser.ex b/lib/pleroma/web/rich_media/parser.ex
index e9aa2dd03..e98c743ca 100644
--- a/lib/pleroma/web/rich_media/parser.ex
+++ b/lib/pleroma/web/rich_media/parser.ex
@@ -17,14 +17,25 @@ def parse(url), do: parse_url(url)
   else
     @spec parse(String.t()) :: {:ok, map()} | {:error, any()}
     def parse(url) do
-      Cachex.fetch!(:rich_media_cache, url, fn _ ->
-        with {:ok, data} <- parse_url(url) do
-          {:commit, {:ok, data}}
-        else
-          error -> {:ignore, error}
-        end
-      end)
-      |> set_ttl_based_on_image(url)
+      with {:ok, data} <- get_cached_or_parse(url),
+           {:ok, _} <- set_ttl_based_on_image(data, url) do
+        {:ok, data}
+      else
+        error ->
+          Logger.error(fn -> "Rich media error: #{inspect(error)}" end)
+      end
+    end
+
+    defp get_cached_or_parse(url) do
+      case Cachex.fetch!(:rich_media_cache, url, fn _ -> {:commit, parse_url(url)} end) do
+        {:ok, _data} = res ->
+          res
+
+        {:error, _} = e ->
+          ttl = Pleroma.Config.get([:rich_media, :failure_backoff], 60_000)
+          Cachex.expire(:rich_media_cache, url, ttl)
+          e
+      end
     end
   end
 
@@ -50,22 +61,21 @@ def ttl(data, url) do
       config :pleroma, :rich_media,
         ttl_setters: [MyModule]
   """
-  @spec set_ttl_based_on_image({:ok, map()} | {:error, any()}, String.t()) ::
-          {:ok, map()} | {:error, any()}
-  def set_ttl_based_on_image({:ok, data}, url) do
-    with {:ok, nil} <- Cachex.ttl(:rich_media_cache, url),
-         {:ok, ttl} when is_number(ttl) <- get_ttl_from_image(data, url) do
-      Cachex.expire_at(:rich_media_cache, url, ttl * 1000)
-      {:ok, data}
-    else
-      _ ->
-        {:ok, data}
-    end
-  end
+  @spec set_ttl_based_on_image(map(), String.t()) ::
+          {:ok, Integer.t() | :noop} | {:error, :no_key}
+  def set_ttl_based_on_image(data, url) do
+    case get_ttl_from_image(data, url) do
+      {:ok, ttl} when is_number(ttl) ->
+        ttl = ttl * 1000
 
-  def set_ttl_based_on_image({:error, _} = error, _) do
-    Logger.error("parsing error: #{inspect(error)}")
-    error
+        case Cachex.expire_at(:rich_media_cache, url, ttl) do
+          {:ok, true} -> {:ok, ttl}
+          {:ok, false} -> {:error, :no_key}
+        end
+
+      _ ->
+        {:ok, :noop}
+    end
   end
 
   defp get_ttl_from_image(data, url) do
diff --git a/test/web/rich_media/aws_signed_url_test.exs b/test/web/rich_media/aws_signed_url_test.exs
index a21f3c935..1ceae1a31 100644
--- a/test/web/rich_media/aws_signed_url_test.exs
+++ b/test/web/rich_media/aws_signed_url_test.exs
@@ -55,7 +55,7 @@ test "s3 signed url is parsed and correct ttl is set for rich media" do
 
     Cachex.put(:rich_media_cache, url, metadata)
 
-    Pleroma.Web.RichMedia.Parser.set_ttl_based_on_image({:ok, metadata}, url)
+    Pleroma.Web.RichMedia.Parser.set_ttl_based_on_image(metadata, url)
 
     {:ok, cache_ttl} = Cachex.ttl(:rich_media_cache, url)
 

From a11f23c130331d98db941c3edcc4d2dcf139bbc6 Mon Sep 17 00:00:00 2001
From: Alexander Strizhakov <alex.strizhakov@gmail.com>
Date: Wed, 2 Sep 2020 15:45:47 +0300
Subject: [PATCH 11/14] user agent if Endpoint is not started yet

---
 lib/pleroma/application.ex | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index 005aba50a..33b1e3872 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -22,13 +22,18 @@ def named_version, do: @name <> " " <> @version
   def repository, do: @repository
 
   def user_agent do
-    case Config.get([:http, :user_agent], :default) do
-      :default ->
-        info = "#{Pleroma.Web.base_url()} <#{Config.get([:instance, :email], "")}>"
-        named_version() <> "; " <> info
+    if Process.whereis(Pleroma.Web.Endpoint) do
+      case Config.get([:http, :user_agent], :default) do
+        :default ->
+          info = "#{Pleroma.Web.base_url()} <#{Config.get([:instance, :email], "")}>"
+          named_version() <> "; " <> info
 
-      custom ->
-        custom
+        custom ->
+          custom
+      end
+    else
+      # fallback, if endpoint is not started yet
+      "Pleroma Data Loader"
     end
   end
 

From d48fc90978eee46c8fba00a80082d14fc31a0eec Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Wed, 2 Sep 2020 13:44:08 +0300
Subject: [PATCH 12/14] StatusView: Start fetching rich media cards as soon as
 possible

---
 CHANGELOG.md                                     |  2 ++
 .../web/mastodon_api/views/status_view.ex        | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4424c060f..54685cfb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### Fixed
 - Mastodon API: Search parameter `following` now correctly returns the followings rather than the followers
+- Mastodon API: Timelines hanging for (`number of posts with links * rich media timeout`) in the worst case.
+  Reduced to just rich media timeout.
 
 ## [2.1.0] - 2020-08-28
 
diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex
index 01b8bb6bb..3fe1967be 100644
--- a/lib/pleroma/web/mastodon_api/views/status_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/status_view.ex
@@ -23,6 +23,17 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
 
   import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1, visible_for_user?: 2]
 
+  # This is a naive way to do this, just spawning a process per activity
+  # to fetch the preview. However it should be fine considering
+  # pagination is restricted to 40 activities at a time
+  defp fetch_rich_media_for_activities(activities) do
+    Enum.each(activities, fn activity ->
+      spawn(fn ->
+        Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
+      end)
+    end)
+  end
+
   # TODO: Add cached version.
   defp get_replied_to_activities([]), do: %{}
 
@@ -80,6 +91,11 @@ def render("index.json", opts) do
 
     # To do: check AdminAPIControllerTest on the reasons behind nil activities in the list
     activities = Enum.filter(opts.activities, & &1)
+
+    # Start fetching rich media before doing anything else, so that later calls to get the cards
+    # only block for timeout in the worst case, as opposed to
+    # length(activities_with_links) * timeout
+    fetch_rich_media_for_activities(activities)
     replied_to_activities = get_replied_to_activities(activities)
 
     parent_activities =

From cbf7f0e02943f44a73f4418b8c6a8bada06331d8 Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@FreeBSD.org>
Date: Wed, 2 Sep 2020 09:09:13 -0500
Subject: [PATCH 13/14] Disallow password resets for deactivated accounts.

Ensure all responses to password reset events are identical.
---
 CHANGELOG.md                                  |  1 +
 .../controllers/auth_controller.ex            | 14 ++++--------
 lib/pleroma/web/twitter_api/twitter_api.ex    | 13 ++---------
 .../controllers/auth_controller_test.exs      | 22 ++++++++++++++-----
 4 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54685cfb8..cdd5b94a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Mastodon API: Search parameter `following` now correctly returns the followings rather than the followers
 - Mastodon API: Timelines hanging for (`number of posts with links * rich media timeout`) in the worst case.
   Reduced to just rich media timeout.
+- Password resets no longer processed for deactivated accounts
 
 ## [2.1.0] - 2020-08-28
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/auth_controller.ex b/lib/pleroma/web/mastodon_api/controllers/auth_controller.ex
index 753b3db3e..9f09550e1 100644
--- a/lib/pleroma/web/mastodon_api/controllers/auth_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/auth_controller.ex
@@ -59,17 +59,11 @@ def logout(conn, _) do
   def password_reset(conn, params) do
     nickname_or_email = params["email"] || params["nickname"]
 
-    with {:ok, _} <- TwitterAPI.password_reset(nickname_or_email) do
-      conn
-      |> put_status(:no_content)
-      |> json("")
-    else
-      {:error, "unknown user"} ->
-        send_resp(conn, :not_found, "")
+    TwitterAPI.password_reset(nickname_or_email)
 
-      {:error, _} ->
-        send_resp(conn, :bad_request, "")
-    end
+    conn
+    |> put_status(:no_content)
+    |> json("")
   end
 
   defp local_mastodon_root_path(conn) do
diff --git a/lib/pleroma/web/twitter_api/twitter_api.ex b/lib/pleroma/web/twitter_api/twitter_api.ex
index 2294d9d0d..5d7948507 100644
--- a/lib/pleroma/web/twitter_api/twitter_api.ex
+++ b/lib/pleroma/web/twitter_api/twitter_api.ex
@@ -72,7 +72,7 @@ defp maybe_notify_admins(%User{} = account) do
 
   def password_reset(nickname_or_email) do
     with true <- is_binary(nickname_or_email),
-         %User{local: true, email: email} = user when is_binary(email) <-
+         %User{local: true, email: email, deactivated: false} = user when is_binary(email) <-
            User.get_by_nickname_or_email(nickname_or_email),
          {:ok, token_record} <- Pleroma.PasswordResetToken.create_token(user) do
       user
@@ -81,17 +81,8 @@ def password_reset(nickname_or_email) do
 
       {:ok, :enqueued}
     else
-      false ->
-        {:error, "bad user identifier"}
-
-      %User{local: true, email: nil} ->
+      _ ->
         {:ok, :noop}
-
-      %User{local: false} ->
-        {:error, "remote user"}
-
-      nil ->
-        {:error, "unknown user"}
     end
   end
 
diff --git a/test/web/mastodon_api/controllers/auth_controller_test.exs b/test/web/mastodon_api/controllers/auth_controller_test.exs
index a485f8e41..4fa95fce1 100644
--- a/test/web/mastodon_api/controllers/auth_controller_test.exs
+++ b/test/web/mastodon_api/controllers/auth_controller_test.exs
@@ -122,17 +122,27 @@ test "it doesn't fail when a user has no email", %{conn: conn} do
       {:ok, user: user}
     end
 
-    test "it returns 404 when user is not found", %{conn: conn, user: user} do
+    test "it returns 204 when user is not found", %{conn: conn, user: user} do
       conn = post(conn, "/auth/password?email=nonexisting_#{user.email}")
-      assert conn.status == 404
-      assert conn.resp_body == ""
+
+      assert conn
+             |> json_response(:no_content)
     end
 
-    test "it returns 400 when user is not local", %{conn: conn, user: user} do
+    test "it returns 204 when user is not local", %{conn: conn, user: user} do
       {:ok, user} = Repo.update(Ecto.Changeset.change(user, local: false))
       conn = post(conn, "/auth/password?email=#{user.email}")
-      assert conn.status == 400
-      assert conn.resp_body == ""
+
+      assert conn
+             |> json_response(:no_content)
+    end
+
+    test "it returns 204 when user is deactivated", %{conn: conn, user: user} do
+      {:ok, user} = Repo.update(Ecto.Changeset.change(user, deactivated: true, local: true))
+      conn = post(conn, "/auth/password?email=#{user.email}")
+
+      assert conn
+             |> json_response(:no_content)
     end
   end
 

From 581f382e712dc50fa51d1ab211f13b8843dcb448 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Wed, 2 Sep 2020 18:32:00 +0200
Subject: [PATCH 14/14] ListController: DRY up stuff.

---
 .../mastodon_api/controllers/list_controller.ex | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/lib/pleroma/web/mastodon_api/controllers/list_controller.ex b/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
index 4df13cb81..5daeaa780 100644
--- a/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/list_controller.ex
@@ -73,19 +73,6 @@ def add_to_list(%{assigns: %{list: list}, body_params: %{account_ids: account_id
   end
 
   # DELETE /api/v1/lists/:id/accounts
-  def remove_from_list(
-        %{assigns: %{list: list}, body_params: %{account_ids: account_ids}} = conn,
-        _
-      ) do
-    Enum.each(account_ids, fn account_id ->
-      with %User{} = followed <- User.get_cached_by_id(account_id) do
-        Pleroma.List.unfollow(list, followed)
-      end
-    end)
-
-    json(conn, %{})
-  end
-
   def remove_from_list(
         %{assigns: %{list: list}, params: %{account_ids: account_ids}} = conn,
         _
@@ -99,6 +86,10 @@ def remove_from_list(
     json(conn, %{})
   end
 
+  def remove_from_list(%{body_params: params} = conn, _) do
+    remove_from_list(%{conn | params: params}, %{})
+  end
+
   defp list_by_id_and_user(%{assigns: %{user: user}, params: %{id: id}} = conn, _) do
     case Pleroma.List.get(id, user) do
       %Pleroma.List{} = list -> assign(conn, :list, list)