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Merge branch 'bugfix/favicon-none-found' into 'develop'

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instance: Handle not getting a favicon

See merge request pleroma/pleroma!2988
This commit is contained in:
rinpatch 2020-09-11 10:42:25 +00:00
parent 03d1730f30 dbc013f24c
commit 53dc61ba90
2 changed files with 50 additions and 33 deletions
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12
lib/pleroma/instances/instance.ex
View file

@ -159,13 +159,11 @@ defp scrape_favicon(%URI{} = instance_uri) do
Pleroma.HTTP.get(to_string(instance_uri), [{"accept", "text/html"}],
adapter: [pool: :media]
),
favicon_rel <-
html
|> Floki.parse_document!()
|> Floki.attribute("link[rel=icon]", "href")
|> List.first(),
favicon <- URI.merge(instance_uri, favicon_rel) |> to_string(),
true <- is_binary(favicon) do
{_, [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
_ -> nil

21
test/web/instances/instance_test.exs
View file

@ -99,6 +99,7 @@ test "does NOT modify `unreachable_since` value of existing record in case it's
end
end
describe "get_or_update_favicon/1" do
test "Scrapes favicon URLs" do
Tesla.Mock.mock(fn %{url: "https://favicon.example.org/"} ->
%Tesla.Env{
@ -118,7 +119,8 @@ test "Returns nil on too long favicon URLs" do
Tesla.Mock.mock(fn %{url: "https://long-favicon.example.org/"} ->
%Tesla.Env{
status: 200,
body: ~s[<html><head><link rel="icon" href="] <> long_favicon_url <> ~s["></head></html>]
body:
~s[<html><head><link rel="icon" href="] <> long_favicon_url <> ~s["></head></html>]
}
end)
@ -130,4 +132,21 @@ test "Returns nil on too long favicon URLs" do
end) =~
"Instance.get_or_update_favicon(\"long-favicon.example.org\") error: %Postgrex.Error{"
end
test "Handles not getting a favicon URL properly" do
Tesla.Mock.mock(fn %{url: "https://no-favicon.example.org/"} ->
%Tesla.Env{
status: 200,
body: ~s[<html><head><h1>I wil look down and whisper "GNO.."</h1></head></html>]
}
end)
refute capture_log(fn ->
assert nil ==
Instance.get_or_update_favicon(
URI.parse("https://no-favicon.example.org/")
)
end) =~ "Instance.scrape_favicon(\"https://no-favicon.example.org/\") error: "
end
end
end