91 lines
2.8 KiB
Elixir
91 lines
2.8 KiB
Elixir
defmodule BDS.Desktop.MediaController do
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@moduledoc false
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use Phoenix.Controller, formats: [:html]
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alias BDS.Media
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alias BDS.Media.Media, as: MediaRecord
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alias BDS.Projects
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alias BDS.Repo
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@web_image_types ~w(image/jpeg image/png image/webp image/gif image/svg+xml image/avif)
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def thumbnail(conn, %{"media_id" => media_id} = params) do
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send_media(conn, active_media_thumbnail(media_id, Map.get(params, "size")))
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end
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def file(conn, %{"media_id" => media_id}) do
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send_media(conn, active_media_file(media_id))
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end
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defp send_media(conn, {:ok, content_type, path}) do
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conn
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|> Plug.Conn.put_resp_content_type(content_type)
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|> Plug.Conn.send_file(200, path)
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end
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defp send_media(conn, :error), do: send_resp(conn, 404, "not found")
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# Serves the original image at full resolution; formats browsers cannot
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# render inline fall back to the large thumbnail.
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defp active_media_file(media_id) do
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with %{} = project <- Projects.get_active_project(),
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%MediaRecord{} = media <- Repo.get(MediaRecord, media_id),
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true <- media.project_id == project.id,
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true <- media.mime_type in @web_image_types,
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absolute_path = Path.join(Projects.project_data_dir(project), media.file_path),
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true <- File.exists?(absolute_path) do
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{:ok, media.mime_type, absolute_path}
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else
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_other -> active_media_thumbnail(media_id, "large")
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end
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rescue
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error in [Exqlite.Error, DBConnection.OwnershipError] ->
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if match?(%Exqlite.Error{}, error) and
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not String.contains?(Exception.message(error), "no such table") do
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reraise error, __STACKTRACE__
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end
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:error
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end
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defp active_media_thumbnail(media_id, size) do
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with %{} = project <- Projects.get_active_project(),
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%MediaRecord{} = media <- Repo.get(MediaRecord, media_id),
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true <- media.project_id == project.id,
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relative_path when is_binary(relative_path) <-
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Media.thumbnail_paths(media)[thumbnail_size(size)],
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absolute_path = Path.join(Projects.project_data_dir(project), relative_path),
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true <- File.exists?(absolute_path) do
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{:ok, thumbnail_content_type(relative_path), absolute_path}
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else
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_other -> :error
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end
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rescue
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error in [Exqlite.Error, DBConnection.OwnershipError] ->
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if match?(%Exqlite.Error{}, error) and
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not String.contains?(Exception.message(error), "no such table") do
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reraise error, __STACKTRACE__
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end
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:error
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end
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defp thumbnail_size(size) do
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case to_string(size || "small") do
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"medium" -> :medium
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"large" -> :large
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"ai" -> :ai
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_other -> :small
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end
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end
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defp thumbnail_content_type(path) do
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case Path.extname(path) do
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".jpg" -> "image/jpeg"
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".jpeg" -> "image/jpeg"
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_other -> "image/webp"
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end
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end
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end
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