X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Finstances%2Finstance.ex;h=4d0e8034d61400f623169a0d47c3bc21f236e1a6;hb=fc42e714e234542bfec5a53a3fb9b7a45bcb4bd3;hp=544c4b687c8d5e0a9c13a3247fa8e731609b0188;hpb=c4fbb56984d8f86df948cfd9b0f7c081d688c365;p=akkoma
diff --git a/lib/pleroma/instances/instance.ex b/lib/pleroma/instances/instance.ex
index 544c4b687..4d0e8034d 100644
--- a/lib/pleroma/instances/instance.ex
+++ b/lib/pleroma/instances/instance.ex
@@ -1,5 +1,5 @@
# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors
+# Copyright © 2017-2021 Pleroma Authors
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Instances.Instance do
@@ -14,9 +14,13 @@ defmodule Pleroma.Instances.Instance do
import Ecto.Query
import Ecto.Changeset
+ require Logger
+
schema "instances" do
field(:host, :string)
field(:unreachable_since, :naive_datetime_usec)
+ field(:favicon, :string)
+ field(:favicon_updated_at, :naive_datetime)
timestamps()
end
@@ -25,7 +29,7 @@ defmodule Pleroma.Instances.Instance do
def changeset(struct, params \\ %{}) do
struct
- |> cast(params, [:host, :unreachable_since])
+ |> cast(params, [:host, :unreachable_since, :favicon, :favicon_updated_at])
|> validate_required([:host])
|> unique_constraint(:host)
end
@@ -73,7 +77,7 @@ defmodule Pleroma.Instances.Instance do
)
end
- def reachable?(_), do: true
+ def reachable?(url_or_host) when is_binary(url_or_host), do: true
def set_reachable(url_or_host) when is_binary(url_or_host) do
with host <- host(url_or_host),
@@ -115,9 +119,80 @@ defmodule Pleroma.Instances.Instance do
def set_unreachable(_, _), do: {:error, nil}
+ def get_consistently_unreachable do
+ reachability_datetime_threshold = Instances.reachability_datetime_threshold()
+
+ from(i in Instance,
+ where: ^reachability_datetime_threshold > i.unreachable_since,
+ order_by: i.unreachable_since,
+ select: {i.host, i.unreachable_since}
+ )
+ |> Repo.all()
+ end
+
defp parse_datetime(datetime) when is_binary(datetime) do
NaiveDateTime.from_iso8601(datetime)
end
defp parse_datetime(datetime), do: datetime
+
+ def get_or_update_favicon(%URI{host: host} = instance_uri) do
+ existing_record = Repo.get_by(Instance, %{host: host})
+ now = NaiveDateTime.utc_now()
+
+ if existing_record && existing_record.favicon_updated_at &&
+ NaiveDateTime.diff(now, existing_record.favicon_updated_at) < 86_400 do
+ existing_record.favicon
+ else
+ favicon = scrape_favicon(instance_uri)
+
+ if existing_record do
+ existing_record
+ |> changeset(%{favicon: favicon, favicon_updated_at: now})
+ |> Repo.update()
+ else
+ %Instance{}
+ |> changeset(%{host: host, favicon: favicon, favicon_updated_at: now})
+ |> Repo.insert()
+ end
+
+ favicon
+ end
+ rescue
+ e ->
+ Logger.warn("Instance.get_or_update_favicon(\"#{host}\") error: #{inspect(e)}")
+ nil
+ end
+
+ defp scrape_favicon(%URI{} = instance_uri) do
+ try do
+ with {_, true} <- {:reachable, reachable?(instance_uri.host)},
+ {:ok, %Tesla.Env{body: html}} <-
+ Pleroma.HTTP.get(to_string(instance_uri), [{"accept", "text/html"}], pool: :media),
+ {_, [favicon_rel | _]} when is_binary(favicon_rel) <-
+ {:parse,
+ html |> Floki.parse_document!() |> Floki.attribute("link[rel=icon]", "href")},
+ {_, favicon} when is_binary(favicon) <-
+ {:merge, URI.merge(instance_uri, favicon_rel) |> to_string()} do
+ favicon
+ else
+ {:reachable, false} ->
+ Logger.debug(
+ "Instance.scrape_favicon(\"#{to_string(instance_uri)}\") ignored unreachable host"
+ )
+
+ nil
+
+ _ ->
+ nil
+ end
+ rescue
+ e ->
+ Logger.warn(
+ "Instance.scrape_favicon(\"#{to_string(instance_uri)}\") error: #{inspect(e)}"
+ )
+
+ nil
+ end
+ end
end