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7 commits

Author SHA1 Message Date
Mark Felder 859ad4dbae Fix broken Rich Media parsing when the image URL is a relative path 2024-05-05 13:51:13 -04:00
Mark Felder b067fbde31 Respect the TTL returned in OpenGraph tags 2024-05-05 13:51:13 -04:00
Mark Felder 68dc81b59e Fix broken tests 2024-05-05 13:51:13 -04:00
Mark Felder 2079e92c5c Increase the :max_body for Rich Media to 5MB
Websites are increasingly getting more bloated with tricks like inlining content (e.g., CNN.com) which puts pages at or above 5MB. This value may still be too low.
2024-05-05 13:51:13 -04:00
Mark Felder a6407f9ba5 RichMedia refactor
Rich Media parsing was previously handled on-demand with a 2 second HTTP request timeout and retained only in Cachex. Every time a Pleroma instance is restarted it will have to request and parse the data for each status with a URL detected. When fetching a batch of statuses they were processed in parallel to attempt to keep the maximum latency at 2 seconds, but often resulted in a timeline appearing to hang during loading due to a URL that could not be successfully reached. URLs which had images links that expire (Amazon AWS) were parsed and inserted with a TTL to ensure the image link would not break.

Rich Media data is now cached in the database and fetched asynchronously. Cachex is used as a read-through cache. When the data becomes available we stream an update to the clients. If the result is returned quickly the experience is almost seamless. Activities were already processed for their Rich Media data during ingestion to warm the cache, so users should not normally encounter the asynchronous loading of the Rich Media data.

Implementation notes:

- The async worker is a Task with a globally unique process name to prevent duplicate processing of the same URL
- The Task will attempt to fetch the data 3 times with increasing sleep time between attempts
- The HTTP request obeys the default HTTP request timeout value instead of 2 seconds
- URLs that cannot be successfully parsed due to an unexpected error receives a negative cache entry for 15 minutes
- URLs that fail with an expected error will receive a negative cache with no TTL
- Activities that have no detected URLs insert a nil value in the Cachex :scrubber_cache so we do not repeat parsing the object content with Floki every time the activity is rendered
- Expiring image URLs are handled with an Oban job
- There is no automatic cleanup of the Rich Media data in the database, but it is safe to delete at any time
- The post draft/preview feature makes the URL processing synchronous so the rendered post preview will have an accurate rendering

Overall performance of timelines and creating new posts which contain URLs is greatly improved.
2024-05-05 13:51:13 -04:00
lain 987f44d811 Merge branch 'bookmark-folders' into 'develop'
Fix BookmarkFolderView, add test

See merge request pleroma/pleroma!4096
2024-03-20 13:26:47 +00:00
marcin mikołajczak 37ec645ff2 Fix BookmarkFolderView, add test
Signed-off-by: marcin mikołajczak <git@mkljczk.pl>
2024-03-20 13:24:43 +01:00
30 changed files with 1020 additions and 441 deletions

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@ -0,0 +1 @@
Refactored Rich Media to cache the content in the database. Fetching operations that could block status rendering have been eliminated.

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@ -428,7 +428,11 @@ config :pleroma, :rich_media,
Pleroma.Web.RichMedia.Parsers.OEmbed
],
failure_backoff: 60_000,
ttl_setters: [Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl]
ttl_setters: [
Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl,
Pleroma.Web.RichMedia.Parser.TTL.Opengraph
],
max_body: 5_000_000
config :pleroma, :media_proxy,
enabled: false,
@ -575,7 +579,8 @@ config :pleroma, Oban,
attachments_cleanup: 1,
new_users_digest: 1,
mute_expire: 5,
search_indexing: 10
search_indexing: 10,
rich_media_expiration: 2
],
plugins: [Oban.Plugins.Pruner],
crontab: [

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@ -61,7 +61,8 @@ config :tesla, adapter: Tesla.Mock
config :pleroma, :rich_media,
enabled: false,
ignore_hosts: [],
ignore_tld: ["local", "localdomain", "lan"]
ignore_tld: ["local", "localdomain", "lan"],
max_body: 2_000_000
config :pleroma, :instance,
multi_factor_authentication: [
@ -174,6 +175,8 @@ config :pleroma, Pleroma.Uploaders.Uploader, timeout: 1_000
config :pleroma, Pleroma.Emoji.Loader, test_emoji: true
config :pleroma, Pleroma.Web.RichMedia.Backfill, provider: Pleroma.Web.RichMedia.Backfill
if File.exists?("./config/test.secret.exs") do
import_config "test.secret.exs"
else

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@ -65,20 +65,16 @@ defmodule Pleroma.HTML do
end
end
@spec extract_first_external_url_from_object(Pleroma.Object.t()) ::
{:ok, String.t()} | {:error, :no_content}
@spec extract_first_external_url_from_object(Pleroma.Object.t()) :: String.t() | nil
def extract_first_external_url_from_object(%{data: %{"content" => content}})
when is_binary(content) do
url =
content
|> Floki.parse_fragment!()
|> Floki.find("a:not(.mention,.hashtag,.attachment,[rel~=\"tag\"])")
|> Enum.take(1)
|> Floki.attribute("href")
|> Enum.at(0)
{:ok, url}
content
|> Floki.parse_fragment!()
|> Floki.find("a:not(.mention,.hashtag,.attachment,[rel~=\"tag\"])")
|> Enum.take(1)
|> Floki.attribute("href")
|> Enum.at(0)
end
def extract_first_external_url_from_object(_), do: {:error, :no_content}
def extract_first_external_url_from_object(_), do: nil
end

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@ -147,9 +147,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
# Splice in the child object if we have one.
activity = Maps.put_if_present(activity, :object, object)
ConcurrentLimiter.limit(Pleroma.Web.RichMedia.Helpers, fn ->
Task.start(fn -> Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity) end)
end)
Pleroma.Web.RichMedia.Card.get_by_activity(activity)
# Add local posts to search index
if local, do: Pleroma.Search.add_to_index(activity)
@ -177,7 +175,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
id: "pleroma:fakeid"
}
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
Pleroma.Web.RichMedia.Card.get_by_activity(activity)
{:ok, activity}
{:remote_limit_pass, _} ->

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@ -227,9 +227,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
end
end
ConcurrentLimiter.limit(Pleroma.Web.RichMedia.Helpers, fn ->
Task.start(fn -> Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity) end)
end)
Pleroma.Web.RichMedia.Card.get_by_activity(activity)
Pleroma.Search.add_to_index(Map.put(activity, :object, object))

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@ -25,6 +25,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
alias Pleroma.Web.OAuth.Token
alias Pleroma.Web.Plugs.OAuthScopesPlug
alias Pleroma.Web.Plugs.RateLimiter
alias Pleroma.Web.RichMedia.Card
plug(Pleroma.Web.ApiSpec.CastAndValidate, replace_params: false)
@ -480,9 +481,9 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
_
) do
with %Activity{} = activity <- Activity.get_by_id(status_id),
true <- Visibility.visible_for_user?(activity, user) do
data = Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
render(conn, "card.json", data)
true <- Visibility.visible_for_user?(activity, user),
%Card{} = card_data <- Card.get_by_activity(activity) do
render(conn, "card.json", card_data)
else
_ -> render_error(conn, :not_found, "Record not found")
end

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@ -21,6 +21,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
alias Pleroma.Web.MastodonAPI.StatusView
alias Pleroma.Web.MediaProxy
alias Pleroma.Web.PleromaAPI.EmojiReactionController
alias Pleroma.Web.RichMedia.Card
import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1, visible_for_user?: 2]
@ -29,9 +30,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
# 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)
spawn(fn -> Card.get_by_activity(activity) end)
end)
end
@ -113,9 +112,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusView 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
# Start prefetching rich media before doing anything else
fetch_rich_media_for_activities(activities)
replied_to_activities = get_replied_to_activities(activities)
quoted_activities = get_quoted_activities(activities)
@ -364,7 +361,11 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
summary = object.data["summary"] || ""
card = render("card.json", Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity))
card =
case Card.get_by_activity(activity) do
%Card{} = result -> render("card.json", result)
_ -> nil
end
url =
if user.local do
@ -567,15 +568,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do
}
end
def render("card.json", %{rich_media: rich_media, page_url: page_url}) do
page_url_data = URI.parse(page_url)
page_url_data =
if is_binary(rich_media["url"]) do
URI.merge(page_url_data, URI.parse(rich_media["url"]))
else
page_url_data
end
def render("card.json", %Card{fields: rich_media}) do
page_url_data = URI.parse(rich_media["url"])
page_url = page_url_data |> to_string

View file

@ -13,10 +13,8 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderView do
%{
id: folder.id |> to_string(),
name: folder.name,
emoji: get_emoji(folder.emoji),
source: %{
emoji: folder.emoji
}
emoji: folder.emoji,
emoji_url: get_emoji_url(folder.emoji)
}
end
@ -24,18 +22,18 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderView do
render_many(folders, __MODULE__, "show.json", Map.delete(opts, :folders))
end
defp get_emoji(nil) do
defp get_emoji_url(nil) do
nil
end
defp get_emoji(emoji) do
defp get_emoji_url(emoji) do
if Emoji.unicode?(emoji) do
emoji
nil
else
emoji = Emoji.get(emoji)
if emoji != nil do
Endpoint.url() |> URI.merge(emoji.relative_url) |> to_string()
Endpoint.url() |> URI.merge(emoji.file) |> to_string()
else
nil
end

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@ -9,6 +9,7 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
alias Pleroma.User
alias Pleroma.Web.CommonAPI.Utils
alias Pleroma.Web.MastodonAPI.StatusView
alias Pleroma.Web.RichMedia.Card
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
@ -23,6 +24,12 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
}
}
) do
card =
case Card.get_by_object(object) do
%Card{} = card_data -> StatusView.render("card.json", card_data)
_ -> nil
end
%{
id: id |> to_string(),
content: chat_message["content"],
@ -34,11 +41,7 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
chat_message["attachment"] &&
StatusView.render("attachment.json", attachment: chat_message["attachment"]),
unread: unread,
card:
StatusView.render(
"card.json",
Pleroma.Web.RichMedia.Helpers.fetch_data_for_object(object)
)
card: card
}
|> put_idempotency_key()
end

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@ -0,0 +1,101 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.Backfill.Task do
alias Pleroma.Web.RichMedia.Backfill
def run(args) do
Task.Supervisor.start_child(Pleroma.TaskSupervisor, Backfill, :run, [args],
name: {:global, {:rich_media, args.url_hash}}
)
end
end
defmodule Pleroma.Web.RichMedia.Backfill do
alias Pleroma.Web.RichMedia.Card
alias Pleroma.Web.RichMedia.Parser
alias Pleroma.Web.RichMedia.Parser.TTL
alias Pleroma.Workers.RichMediaExpirationWorker
require Logger
@backfiller Pleroma.Config.get([__MODULE__, :provider], Pleroma.Web.RichMedia.Backfill.Task)
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
@max_attempts 3
@retry 5_000
def start(%{url: url} = args) when is_binary(url) do
url_hash = Card.url_to_hash(url)
args =
args
|> Map.put(:attempt, 1)
|> Map.put(:url_hash, url_hash)
@backfiller.run(args)
end
def run(%{url: url, url_hash: url_hash, attempt: attempt} = args)
when attempt <= @max_attempts do
case Parser.parse(url) do
{:ok, fields} ->
{:ok, card} = Card.create(url, fields)
maybe_schedule_expiration(url, fields)
if Map.has_key?(args, :activity_id) do
stream_update(args)
end
warm_cache(url_hash, card)
{:error, {:invalid_metadata, fields}} ->
Logger.debug("Rich media incomplete or invalid metadata for #{url}: #{inspect(fields)}")
negative_cache(url_hash)
{:error, :body_too_large} ->
Logger.error("Rich media error for #{url}: :body_too_large")
negative_cache(url_hash)
{:error, {:content_type, type}} ->
Logger.debug("Rich media error for #{url}: :content_type is #{type}")
negative_cache(url_hash)
e ->
Logger.debug("Rich media error for #{url}: #{inspect(e)}")
:timer.sleep(@retry * attempt)
run(%{args | attempt: attempt + 1})
end
end
def run(%{url: url, url_hash: url_hash}) do
Logger.debug("Rich media failure for #{url}")
negative_cache(url_hash, :timer.minutes(15))
end
defp maybe_schedule_expiration(url, fields) do
case TTL.process(fields, url) do
{:ok, ttl} when is_number(ttl) ->
timestamp = DateTime.from_unix!(ttl)
RichMediaExpirationWorker.new(%{"url" => url}, scheduled_at: timestamp)
|> Oban.insert()
_ ->
:ok
end
end
defp stream_update(%{activity_id: activity_id}) do
Pleroma.Activity.get_by_id(activity_id)
|> Pleroma.Activity.normalize()
|> Pleroma.Web.ActivityPub.ActivityPub.stream_out()
end
defp warm_cache(key, val), do: @cachex.put(:rich_media_cache, key, val)
defp negative_cache(key, ttl \\ nil), do: @cachex.put(:rich_media_cache, key, nil, ttl: ttl)
end

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@ -0,0 +1,157 @@
defmodule Pleroma.Web.RichMedia.Card do
use Ecto.Schema
import Ecto.Changeset
import Ecto.Query
alias Pleroma.Activity
alias Pleroma.HTML
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.Web.RichMedia.Backfill
alias Pleroma.Web.RichMedia.Parser
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
@config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
@type t :: %__MODULE__{}
schema "rich_media_card" do
field(:url_hash, :binary)
field(:fields, :map)
timestamps()
end
@doc false
def changeset(card, attrs) do
card
|> cast(attrs, [:url_hash, :fields])
|> validate_required([:url_hash, :fields])
|> unique_constraint(:url_hash)
end
@spec create(String.t(), map()) :: {:ok, t()}
def create(url, fields) do
url_hash = url_to_hash(url)
fields = Map.put_new(fields, "url", url)
%__MODULE__{}
|> changeset(%{url_hash: url_hash, fields: fields})
|> Repo.insert(on_conflict: {:replace, [:fields]}, conflict_target: :url_hash)
end
@spec delete(String.t()) :: {:ok, Ecto.Schema.t()} | {:error, Ecto.Changeset.t()} | :ok
def delete(url) do
url_hash = url_to_hash(url)
@cachex.del(:rich_media_cache, url_hash)
case get_by_url(url) do
%__MODULE{} = card -> Repo.delete(card)
nil -> :ok
end
end
@spec get_by_url(String.t() | nil) :: t() | nil | :error
def get_by_url(url) when is_binary(url) do
if @config_impl.get([:rich_media, :enabled]) do
url_hash = url_to_hash(url)
@cachex.fetch!(:rich_media_cache, url_hash, fn _ ->
result =
__MODULE__
|> where(url_hash: ^url_hash)
|> Repo.one()
case result do
%__MODULE__{} = card -> {:commit, card}
_ -> {:ignore, nil}
end
end)
else
:error
end
end
def get_by_url(nil), do: nil
@spec get_or_backfill_by_url(String.t(), map()) :: t() | nil
def get_or_backfill_by_url(url, backfill_opts \\ %{}) do
case get_by_url(url) do
%__MODULE__{} = card ->
card
nil ->
backfill_opts = Map.put(backfill_opts, :url, url)
Backfill.start(backfill_opts)
nil
:error ->
nil
end
end
@spec get_by_object(Object.t()) :: t() | nil | :error
def get_by_object(object) do
case HTML.extract_first_external_url_from_object(object) do
nil -> nil
url -> get_or_backfill_by_url(url)
end
end
@spec get_by_activity(Activity.t()) :: t() | nil | :error
# Fake/Draft activity
def get_by_activity(%Activity{id: "pleroma:fakeid"} = activity) do
with %Object{} = object <- Object.normalize(activity, fetch: false),
url when not is_nil(url) <- HTML.extract_first_external_url_from_object(object) do
case get_by_url(url) do
# Cache hit
%__MODULE__{} = card ->
card
# Cache miss, but fetch for rendering the Draft
_ ->
with {:ok, fields} <- Parser.parse(url),
{:ok, card} <- create(url, fields) do
card
else
_ -> nil
end
end
else
_ ->
nil
end
end
def get_by_activity(activity) do
with %Object{} = object <- Object.normalize(activity, fetch: false),
{_, nil} <- {:cached, get_cached_url(object, activity.id)} do
nil
else
{:cached, url} ->
get_or_backfill_by_url(url, %{activity_id: activity.id})
_ ->
:error
end
end
@spec url_to_hash(String.t()) :: String.t()
def url_to_hash(url) do
:crypto.hash(:sha256, url) |> Base.encode16(case: :lower)
end
defp get_cached_url(object, activity_id) do
key = "URL|#{activity_id}"
@cachex.fetch!(:scrubber_cache, key, fn _ ->
url = HTML.extract_first_external_url_from_object(object)
Activity.HTML.add_cache_key_for(activity_id, key)
{:commit, url}
end)
end
end

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@ -3,65 +3,13 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.Helpers do
alias Pleroma.Activity
alias Pleroma.HTML
alias Pleroma.Object
alias Pleroma.Web.RichMedia.Parser
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
@config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
@options [
pool: :media,
max_body: 2_000_000,
recv_timeout: 2_000
]
def fetch_data_for_object(object) do
with true <- @config_impl.get([:rich_media, :enabled]),
{:ok, page_url} <-
HTML.extract_first_external_url_from_object(object),
{:ok, rich_media} <- Parser.parse(page_url) do
%{page_url: page_url, rich_media: rich_media}
else
_ -> %{}
end
end
def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do
with true <- @config_impl.get([:rich_media, :enabled]),
%Object{} = object <- Object.normalize(activity, fetch: false) do
if object.data["fake"] do
fetch_data_for_object(object)
else
key = "URL|#{activity.id}"
@cachex.fetch!(:scrubber_cache, key, fn _ ->
result = fetch_data_for_object(object)
cond do
match?(%{page_url: _, rich_media: _}, result) ->
Activity.HTML.add_cache_key_for(activity.id, key)
{:commit, result}
true ->
{:ignore, %{}}
end
end)
end
else
_ -> %{}
end
end
def fetch_data_for_activity(_), do: %{}
alias Pleroma.Config
def rich_media_get(url) do
headers = [{"user-agent", Pleroma.Application.user_agent() <> "; Bot"}]
head_check =
case Pleroma.HTTP.head(url, headers, @options) do
case Pleroma.HTTP.head(url, headers, http_options()) do
# If the HEAD request didn't reach the server for whatever reason,
# we assume the GET that comes right after won't either
{:error, _} = e ->
@ -76,7 +24,7 @@ defmodule Pleroma.Web.RichMedia.Helpers do
:ok
end
with :ok <- head_check, do: Pleroma.HTTP.get(url, headers, @options)
with :ok <- head_check, do: Pleroma.HTTP.get(url, headers, http_options())
end
defp check_content_type(headers) do
@ -92,12 +40,13 @@ defmodule Pleroma.Web.RichMedia.Helpers do
end
end
@max_body @options[:max_body]
defp check_content_length(headers) do
max_body = Keyword.get(http_options(), :max_body)
case List.keyfind(headers, "content-length", 0) do
{_, maybe_content_length} ->
case Integer.parse(maybe_content_length) do
{content_length, ""} when content_length <= @max_body -> :ok
{content_length, ""} when content_length <= max_body -> :ok
{_, ""} -> {:error, :body_too_large}
_ -> :ok
end
@ -106,4 +55,11 @@ defmodule Pleroma.Web.RichMedia.Helpers do
:ok
end
end
defp http_options() do
[
pool: :media,
max_body: Config.get([:rich_media, :max_body], 5_000_000)
]
end
end

View file

@ -5,134 +5,28 @@
defmodule Pleroma.Web.RichMedia.Parser do
require Logger
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
@config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
defp parsers do
Pleroma.Config.get([:rich_media, :parsers])
end
def parse(nil), do: {:error, "No URL provided"}
def parse(nil), do: nil
@spec parse(String.t()) :: {:ok, map()} | {:error, any()}
def parse(url) do
with :ok <- validate_page_url(url),
{:ok, data} <- get_cached_or_parse(url),
{:ok, _} <- set_ttl_based_on_image(data, url) do
{:ok, data} <- parse_url(url) do
data = Map.put(data, "url", url)
{:ok, data}
end
end
defp get_cached_or_parse(url) do
case @cachex.fetch(:rich_media_cache, url, fn ->
case parse_url(url) do
{:ok, _} = res ->
{:commit, res}
{:error, reason} = e ->
# Unfortunately we have to log errors here, instead of doing that
# along with ttl setting at the bottom. Otherwise we can get log spam
# if more than one process was waiting for the rich media card
# while it was generated. Ideally we would set ttl here as well,
# so we don't override it number_of_waiters_on_generation
# times, but one, obviously, can't set ttl for not-yet-created entry
# and Cachex doesn't support returning ttl from the fetch callback.
log_error(url, reason)
{:commit, e}
end
end) do
{action, res} when action in [:commit, :ok] ->
case res do
{:ok, _data} = res ->
res
{:error, reason} = e ->
if action == :commit, do: set_error_ttl(url, reason)
e
end
{:error, e} ->
{:error, {:cachex_error, e}}
end
end
defp set_error_ttl(_url, :body_too_large), do: :ok
defp set_error_ttl(_url, {:content_type, _}), do: :ok
# The TTL is not set for the errors above, since they are unlikely to change
# with time
defp set_error_ttl(url, _reason) do
ttl = Pleroma.Config.get([:rich_media, :failure_backoff], 60_000)
@cachex.expire(:rich_media_cache, url, ttl)
:ok
end
defp log_error(url, {:invalid_metadata, data}) do
Logger.debug(fn -> "Incomplete or invalid metadata for #{url}: #{inspect(data)}" end)
end
defp log_error(url, reason) do
Logger.warning(fn -> "Rich media error for #{url}: #{inspect(reason)}" end)
end
@doc """
Set the rich media cache based on the expiration time of image.
Adopt behaviour `Pleroma.Web.RichMedia.Parser.TTL`
## Example
defmodule MyModule do
@behaviour Pleroma.Web.RichMedia.Parser.TTL
def ttl(data, url) do
image_url = Map.get(data, :image)
# do some parsing in the url and get the ttl of the image
# and return ttl is unix time
parse_ttl_from_url(image_url)
end
end
Define the module in the config
config :pleroma, :rich_media,
ttl_setters: [MyModule]
"""
@spec set_ttl_based_on_image(map(), String.t()) ::
{:ok, integer() | :noop} | {:error, :no_key}
def set_ttl_based_on_image(data, url) do
case get_ttl_from_image(data, url) do
ttl when is_number(ttl) ->
ttl = ttl * 1000
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
[:rich_media, :ttl_setters]
|> Pleroma.Config.get()
|> Enum.reduce({:ok, nil}, fn
module, {:ok, _ttl} ->
module.ttl(data, url)
_, error ->
error
end)
end
def parse_url(url) do
defp parse_url(url) do
with {:ok, %Tesla.Env{body: html}} <- Pleroma.Web.RichMedia.Helpers.rich_media_get(url),
{:ok, html} <- Floki.parse_document(html) do
html
|> maybe_parse()
|> Map.put("url", url)
|> clean_parsed_data()
|> check_parsed_data()
end

View file

@ -4,4 +4,17 @@
defmodule Pleroma.Web.RichMedia.Parser.TTL do
@callback ttl(map(), String.t()) :: integer() | nil
@spec process(map(), String.t()) :: {:ok, integer() | nil}
def process(data, url) do
[:rich_media, :ttl_setters]
|> Pleroma.Config.get()
|> Enum.reduce_while({:ok, nil}, fn
module, acc ->
case module.ttl(data, url) do
ttl when is_number(ttl) -> {:halt, {:ok, ttl}}
_ -> {:cont, acc}
end
end)
end
end

View file

@ -7,7 +7,7 @@ defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl do
@impl true
def ttl(data, _url) do
image = Map.get(data, :image)
image = Map.get(data, "image")
if aws_signed_url?(image) do
image
@ -15,14 +15,15 @@ defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl do
|> format_query_params()
|> get_expiration_timestamp()
else
{:error, "Not aws signed url #{inspect(image)}"}
nil
end
end
defp aws_signed_url?(image) when is_binary(image) and image != "" do
%URI{host: host, query: query} = URI.parse(image)
String.contains?(host, "amazonaws.com") and String.contains?(query, "X-Amz-Expires")
is_binary(host) and String.contains?(host, "amazonaws.com") and
String.contains?(query, "X-Amz-Expires")
end
defp aws_signed_url?(_), do: nil

View file

@ -0,0 +1,19 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.Parser.TTL.Opengraph do
@behaviour Pleroma.Web.RichMedia.Parser.TTL
@impl true
def ttl(%{"ttl" => ttl_string}, _url) do
with ttl <- String.to_integer(ttl_string) do
now = DateTime.utc_now() |> DateTime.to_unix()
now + ttl
else
_ -> nil
end
end
def ttl(_, _), do: nil
end

View file

@ -0,0 +1,15 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Workers.RichMediaExpirationWorker do
alias Pleroma.Web.RichMedia.Card
use Oban.Worker,
queue: :rich_media_expiration
@impl Oban.Worker
def perform(%Job{args: %{"url" => url} = _args}) do
Card.delete(url)
end
end

View file

@ -0,0 +1,14 @@
defmodule Pleroma.Repo.Migrations.CreateRichMediaCard do
use Ecto.Migration
def change do
create table(:rich_media_card) do
add(:url_hash, :bytea)
add(:fields, :map)
timestamps()
end
create(unique_index(:rich_media_card, [:url_hash]))
end
end

392
test/fixtures/rich_media/reddit.html vendored Normal file

File diff suppressed because one or more lines are too long

View file

@ -202,7 +202,7 @@ defmodule Pleroma.HTMLTest do
})
object = Object.normalize(activity, fetch: false)
{:ok, url} = HTML.extract_first_external_url_from_object(object)
url = HTML.extract_first_external_url_from_object(object)
assert url == "https://github.com/komeiji-satori/Dress"
end
@ -217,7 +217,7 @@ defmodule Pleroma.HTMLTest do
})
object = Object.normalize(activity, fetch: false)
{:ok, url} = HTML.extract_first_external_url_from_object(object)
url = HTML.extract_first_external_url_from_object(object)
assert url == "https://github.com/syuilo/misskey/blob/develop/docs/setup.en.md"
@ -233,7 +233,7 @@ defmodule Pleroma.HTMLTest do
})
object = Object.normalize(activity, fetch: false)
{:ok, url} = HTML.extract_first_external_url_from_object(object)
url = HTML.extract_first_external_url_from_object(object)
assert url == "https://www.pixiv.net/member_illust.php?mode=medium&illust_id=72255140"
end
@ -249,7 +249,7 @@ defmodule Pleroma.HTMLTest do
})
object = Object.normalize(activity, fetch: false)
{:ok, url} = HTML.extract_first_external_url_from_object(object)
url = HTML.extract_first_external_url_from_object(object)
assert url == "https://www.pixiv.net/member_illust.php?mode=medium&illust_id=72255140"
end
@ -261,7 +261,7 @@ defmodule Pleroma.HTMLTest do
object = Object.normalize(activity, fetch: false)
assert {:ok, nil} = HTML.extract_first_external_url_from_object(object)
assert nil == HTML.extract_first_external_url_from_object(object)
end
test "skips attachment links" do
@ -275,7 +275,7 @@ defmodule Pleroma.HTMLTest do
object = Object.normalize(activity, fetch: false)
assert {:ok, nil} = HTML.extract_first_external_url_from_object(object)
assert nil == HTML.extract_first_external_url_from_object(object)
end
end
end

View file

@ -17,6 +17,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.MastodonAPI.AccountView
alias Pleroma.Web.MastodonAPI.StatusView
alias Pleroma.Web.RichMedia.Card
require Bitwise
@ -732,56 +733,55 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
describe "rich media cards" do
test "a rich media card without a site name renders correctly" do
page_url = "http://example.com"
page_url = "https://example.com"
card = %{
url: page_url,
image: page_url <> "/example.jpg",
title: "Example website"
}
{:ok, card} =
Card.create(page_url, %{image: page_url <> "/example.jpg", title: "Example website"})
%{provider_name: "example.com"} =
StatusView.render("card.json", %{page_url: page_url, rich_media: card})
%{provider_name: "example.com"} = StatusView.render("card.json", card)
end
test "a rich media card without a site name or image renders correctly" do
page_url = "http://example.com"
page_url = "https://example.com"
card = %{
url: page_url,
title: "Example website"
fields = %{
"url" => page_url,
"title" => "Example website"
}
%{provider_name: "example.com"} =
StatusView.render("card.json", %{page_url: page_url, rich_media: card})
{:ok, card} = Card.create(page_url, fields)
%{provider_name: "example.com"} = StatusView.render("card.json", card)
end
test "a rich media card without an image renders correctly" do
page_url = "http://example.com"
page_url = "https://example.com"
card = %{
url: page_url,
site_name: "Example site name",
title: "Example website"
fields = %{
"url" => page_url,
"site_name" => "Example site name",
"title" => "Example website"
}
%{provider_name: "example.com"} =
StatusView.render("card.json", %{page_url: page_url, rich_media: card})
{:ok, card} = Card.create(page_url, fields)
%{provider_name: "example.com"} = StatusView.render("card.json", card)
end
test "a rich media card with all relevant data renders correctly" do
page_url = "http://example.com"
page_url = "https://example.com"
card = %{
url: page_url,
site_name: "Example site name",
title: "Example website",
image: page_url <> "/example.jpg",
description: "Example description"
fields = %{
"url" => page_url,
"site_name" => "Example site name",
"title" => "Example website",
"image" => page_url <> "/example.jpg",
"description" => "Example description"
}
%{provider_name: "example.com"} =
StatusView.render("card.json", %{page_url: page_url, rich_media: card})
{:ok, card} = Card.create(page_url, fields)
%{provider_name: "example.com"} = StatusView.render("card.json", card)
end
test "a rich media card has all media proxied" do
@ -791,25 +791,25 @@ defmodule Pleroma.Web.MastodonAPI.StatusViewTest do
ConfigMock
|> stub_with(Pleroma.Test.StaticConfig)
page_url = "http://example.com"
page_url = "https://example.com"
card = %{
url: page_url,
site_name: "Example site name",
title: "Example website",
image: page_url <> "/example.jpg",
audio: page_url <> "/example.ogg",
video: page_url <> "/example.mp4",
description: "Example description"
fields = %{
"url" => page_url,
"site_name" => "Example site name",
"title" => "Example website",
"image" => page_url <> "/example.jpg",
"audio" => page_url <> "/example.ogg",
"video" => page_url <> "/example.mp4",
"description" => "Example description"
}
strcard = for {k, v} <- card, into: %{}, do: {to_string(k), v}
{:ok, card} = Card.create(page_url, fields)
%{
provider_name: "example.com",
image: image,
pleroma: %{opengraph: og}
} = StatusView.render("card.json", %{page_url: page_url, rich_media: strcard})
} = StatusView.render("card.json", card)
assert String.match?(image, ~r/\/proxy\//)
assert String.match?(og["image"], ~r/\/proxy\//)

View file

@ -33,9 +33,7 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderControllerTest do
"id" => ^folder_id,
"name" => "Bookmark folder",
"emoji" => nil,
"source" => %{
"emoji" => nil
}
"emoji_url" => nil
}
] = result
end
@ -57,9 +55,24 @@ defmodule Pleroma.Web.PleromaAPI.BookmarkFolderControllerTest do
assert %{
"name" => "Bookmark folder",
"emoji" => "📁",
"source" => %{
"emoji" => "📁"
}
"emoji_url" => nil
} = result
end
test "it creates a bookmark folder with custom emoji", %{conn: conn} do
result =
conn
|> put_req_header("content-type", "application/json")
|> post("/api/v1/pleroma/bookmark_folders", %{
name: "Bookmark folder",
emoji: ":firefox:"
})
|> json_response_and_validate_schema(200)
assert %{
"name" => "Bookmark folder",
"emoji" => ":firefox:",
"emoji_url" => "http://localhost:4001/emoji/Firefox.gif"
} = result
end

View file

@ -9,7 +9,6 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest do
alias Pleroma.Chat
alias Pleroma.Chat.MessageReference
alias Pleroma.Object
alias Pleroma.StaticStubbedConfigMock
alias Pleroma.UnstubbedConfigMock, as: ConfigMock
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.CommonAPI
@ -18,6 +17,8 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest do
import Mox
import Pleroma.Factory
setup do: clear_config([:rich_media, :enabled], true)
test "it displays a chat message" do
user = insert(:user)
recipient = insert(:user)
@ -62,16 +63,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest do
assert match?([%{shortcode: "firefox"}], chat_message[:emojis])
assert chat_message[:idempotency_key] == "123"
StaticStubbedConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
Tesla.Mock.mock_global(fn
%{url: "https://example.com/ogp"} ->
%Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/ogp.html")}
end)
Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
{:ok, activity} =
CommonAPI.post_chat_message(recipient, user, "gkgkgk https://example.com/ogp",

View file

@ -0,0 +1,71 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.CardTest do
use Pleroma.DataCase, async: true
alias Pleroma.UnstubbedConfigMock, as: ConfigMock
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.RichMedia.Card
import Mox
import Pleroma.Factory
import Tesla.Mock
setup do
mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
ConfigMock
|> stub_with(Pleroma.Test.StaticConfig)
:ok
end
setup do: clear_config([:rich_media, :enabled], true)
test "crawls URL in activity" do
user = insert(:user)
url = "https://example.com/ogp"
url_hash = Card.url_to_hash(url)
{:ok, activity} =
CommonAPI.post(user, %{
status: "[test](#{url})",
content_type: "text/markdown"
})
assert %Card{url_hash: ^url_hash, fields: _} = Card.get_by_activity(activity)
end
test "recrawls URLs on updates" do
original_url = "https://google.com/"
original_url_hash = Card.url_to_hash(original_url)
updated_url = "https://yahoo.com/"
updated_url_hash = Card.url_to_hash(updated_url)
user = insert(:user)
{:ok, activity} = CommonAPI.post(user, %{status: "I like this site #{original_url}"})
# Force a backfill
Card.get_by_activity(activity)
assert match?(
%Card{url_hash: ^original_url_hash, fields: _},
Card.get_by_activity(activity)
)
{:ok, _} = CommonAPI.update(user, activity, %{status: "I like this site #{updated_url}"})
activity = Pleroma.Activity.get_by_id(activity.id)
# Force a backfill
Card.get_by_activity(activity)
assert match?(
%Card{url_hash: ^updated_url_hash, fields: _},
Card.get_by_activity(activity)
)
end
end

View file

@ -1,137 +0,0 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.HelpersTest do
use Pleroma.DataCase, async: false
alias Pleroma.StaticStubbedConfigMock, as: ConfigMock
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.RichMedia.Helpers
import Mox
import Pleroma.Factory
import Tesla.Mock
setup do
mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
ConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> false
path -> Pleroma.Test.StaticConfig.get(path)
end)
|> stub(:get, fn
path, default -> Pleroma.Test.StaticConfig.get(path, default)
end)
:ok
end
test "refuses to crawl incomplete URLs" do
user = insert(:user)
{:ok, activity} =
CommonAPI.post(user, %{
status: "[test](example.com/ogp)",
content_type: "text/markdown"
})
ConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
assert %{} == Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
end
test "refuses to crawl malformed URLs" do
user = insert(:user)
{:ok, activity} =
CommonAPI.post(user, %{
status: "[test](example.com[]/ogp)",
content_type: "text/markdown"
})
ConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
assert %{} == Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
end
test "crawls valid, complete URLs" do
user = insert(:user)
{:ok, activity} =
CommonAPI.post(user, %{
status: "[test](https://example.com/ogp)",
content_type: "text/markdown"
})
ConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
assert %{page_url: "https://example.com/ogp", rich_media: _} =
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
end
test "recrawls URLs on updates" do
original_url = "https://google.com/"
updated_url = "https://yahoo.com/"
Pleroma.StaticStubbedConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
user = insert(:user)
{:ok, activity} = CommonAPI.post(user, %{status: "I like this site #{original_url}"})
assert match?(
%{page_url: ^original_url, rich_media: _},
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
)
{:ok, _} = CommonAPI.update(user, activity, %{status: "I like this site #{updated_url}"})
activity = Pleroma.Activity.get_by_id(activity.id)
assert match?(
%{page_url: ^updated_url, rich_media: _},
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
)
end
test "refuses to crawl URLs of private network from posts" do
user = insert(:user)
{:ok, activity} =
CommonAPI.post(user, %{status: "http://127.0.0.1:4000/notice/9kCP7VNyPJXFOXDrgO"})
{:ok, activity2} = CommonAPI.post(user, %{status: "https://10.111.10.1/notice/9kCP7V"})
{:ok, activity3} = CommonAPI.post(user, %{status: "https://172.16.32.40/notice/9kCP7V"})
{:ok, activity4} = CommonAPI.post(user, %{status: "https://192.168.10.40/notice/9kCP7V"})
{:ok, activity5} = CommonAPI.post(user, %{status: "https://pleroma.local/notice/9kCP7V"})
ConfigMock
|> stub(:get, fn
[:rich_media, :enabled] -> true
path -> Pleroma.Test.StaticConfig.get(path)
end)
assert %{} == Helpers.fetch_data_for_activity(activity)
assert %{} == Helpers.fetch_data_for_activity(activity2)
assert %{} == Helpers.fetch_data_for_activity(activity3)
assert %{} == Helpers.fetch_data_for_activity(activity4)
assert %{} == Helpers.fetch_data_for_activity(activity5)
end
end

View file

@ -3,8 +3,22 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrlTest do
# Relies on Cachex, needs to be synchronous
use Pleroma.DataCase
use Pleroma.DataCase, async: false
use Oban.Testing, repo: Pleroma.Repo
import Mox
alias Pleroma.UnstubbedConfigMock, as: ConfigMock
alias Pleroma.Web.RichMedia.Card
setup do
ConfigMock
|> stub_with(Pleroma.Test.StaticConfig)
clear_config([:rich_media, :enabled], true)
:ok
end
test "s3 signed url is parsed correct for expiration time" do
url = "https://pleroma.social/amz"
@ -43,26 +57,29 @@ defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrlTest do
<meta name="twitter:site" content="Pleroma" />
<meta name="twitter:title" content="Pleroma" />
<meta name="twitter:description" content="Pleroma" />
<meta name="twitter:image" content="#{Map.get(metadata, :image)}" />
<meta name="twitter:image" content="#{Map.get(metadata, "image")}" />
"""
Tesla.Mock.mock(fn
%{
method: :get,
url: "https://pleroma.social/amz"
url: ^url
} ->
%Tesla.Env{status: 200, body: body}
%{method: :head} ->
%Tesla.Env{status: 200}
end)
Cachex.put(:rich_media_cache, url, metadata)
Card.get_or_backfill_by_url(url)
Pleroma.Web.RichMedia.Parser.set_ttl_based_on_image(metadata, url)
assert_enqueued(worker: Pleroma.Workers.RichMediaExpirationWorker, args: %{"url" => url})
{:ok, cache_ttl} = Cachex.ttl(:rich_media_cache, url)
[%Oban.Job{scheduled_at: scheduled_at}] = all_enqueued()
# as there is delay in setting and pulling the data from cache we ignore 1 second
# make it 2 seconds for flakyness
assert_in_delta(valid_till * 1000, cache_ttl, 2000)
timestamp_dt = Timex.parse!(timestamp, "{ISO:Basic:Z}")
assert DateTime.diff(scheduled_at, timestamp_dt) == valid_till
end
defp construct_s3_url(timestamp, valid_till) do
@ -71,11 +88,11 @@ defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrlTest do
defp construct_metadata(timestamp, valid_till, url) do
%{
image: construct_s3_url(timestamp, valid_till),
site: "Pleroma",
title: "Pleroma",
description: "Pleroma",
url: url
"image" => construct_s3_url(timestamp, valid_till),
"site" => "Pleroma",
"title" => "Pleroma",
"description" => "Pleroma",
"url" => url
}
end
end

View file

@ -0,0 +1,41 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2024 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.Parser.TTL.OpengraphTest do
use Pleroma.DataCase
use Oban.Testing, repo: Pleroma.Repo
import Mox
alias Pleroma.UnstubbedConfigMock, as: ConfigMock
alias Pleroma.Web.RichMedia.Card
setup do
ConfigMock
|> stub_with(Pleroma.Test.StaticConfig)
clear_config([:rich_media, :enabled], true)
:ok
end
test "OpenGraph TTL value is honored" do
url = "https://reddit.com/r/somepost"
Tesla.Mock.mock(fn
%{
method: :get,
url: ^url
} ->
%Tesla.Env{status: 200, body: File.read!("test/fixtures/rich_media/reddit.html")}
%{method: :head} ->
%Tesla.Env{status: 200}
end)
Card.get_or_backfill_by_url(url)
assert_enqueued(worker: Pleroma.Workers.RichMediaExpirationWorker, args: %{"url" => url})
end
end

View file

@ -3,7 +3,7 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.RichMedia.ParserTest do
use Pleroma.DataCase, async: false
use Pleroma.DataCase
alias Pleroma.Web.RichMedia.Parser
@ -104,4 +104,27 @@ defmodule Pleroma.Web.RichMedia.ParserTest do
test "does a HEAD request to check if the body is html" do
assert {:error, {:content_type, _}} = Parser.parse("https://example.com/pdf-file")
end
test "refuses to crawl incomplete URLs" do
url = "example.com/ogp"
assert :error == Parser.parse(url)
end
test "refuses to crawl malformed URLs" do
url = "example.com[]/ogp"
assert :error == Parser.parse(url)
end
test "refuses to crawl URLs of private network from posts" do
[
"http://127.0.0.1:4000/notice/9kCP7VNyPJXFOXDrgO",
"https://10.111.10.1/notice/9kCP7V",
"https://172.16.32.40/notice/9kCP7V",
"https://192.168.10.40/notice/9kCP7V",
"https://pleroma.local/notice/9kCP7V"
]
|> Enum.each(fn url ->
assert :error == Parser.parse(url)
end)
end
end