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Add set_content_type to Plug.StaticNoCT

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Oneric 2024-03-04 17:50:20 +01:00
parent dbb6091d01
commit 7ef93c0b6d
1 changed files with 21 additions and 3 deletions
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24
lib/pleroma/web/plugs/static_no_content_type.ex
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@ -4,6 +4,7 @@
# The differences are:
# - this leading comment
# - renaming of the module from 'Plug.Static' to 'Pleroma.Web.Plugs.StaticNoCT'
# - additon of set_content_type option
defmodule Pleroma.Web.Plugs.StaticNoCT do
@moduledoc """
@ -111,6 +112,13 @@ defmodule Pleroma.Web.Plugs.StaticNoCT do
and content type as value. For example:
`content_types: %{"apple-app-site-association" => "application/json"}`.
* `:set_content_type` - by default Plug.Static (re)sets the content type header
using auto-detection and the `:content_types` map. But when set to `false`
no content-type header will be inserted instead retaining the original
value or lack thereof. This can be useful when custom logic for appropiate
content types is needed which cannot be reasonably expressed as a static
filename map.
## Examples
This plug can be mounted in a `Plug.Builder` pipeline as follows:
@ -175,6 +183,7 @@ def init(opts) do
et_generation: Keyword.get(opts, :etag_generation, nil),
headers: Keyword.get(opts, :headers, %{}),
content_types: Keyword.get(opts, :content_types, %{}),
set_content_type: Keyword.get(opts, :set_content_type, true),
from: from,
at: opts |> Keyword.fetch!(:at) |> Plug.Router.Utils.split()
}
@ -225,22 +234,31 @@ defp allowed?({full, prefix}, [h | _]) do
h in full or (prefix != [] and match?({0, _}, :binary.match(h, prefix)))
end
defp maybe_put_content_type(conn, false, _, _), do: conn
defp maybe_put_content_type(conn, _, types, filename) do
content_type = Map.get(types, filename) || MIME.from_path(filename)
conn
|> put_resp_header("content-type", content_type)
end
defp serve_static({content_encoding, file_info, path}, conn, segments, range, options) do
%{
qs_cache: qs_cache,
et_cache: et_cache,
et_generation: et_generation,
headers: headers,
content_types: types
content_types: types,
set_content_type: set_content_type
} = options
case put_cache_header(conn, qs_cache, et_cache, et_generation, file_info, path) do
{:stale, conn} ->
filename = List.last(segments)
content_type = Map.get(types, filename) || MIME.from_path(filename)
conn
|> put_resp_header("content-type", content_type)
|> maybe_put_content_type(set_content_type, types, filename)
|> put_resp_header("accept-ranges", "bytes")
|> maybe_add_encoding(content_encoding)
|> merge_headers(headers)