X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Fmedia_proxy%2Fmedia_proxy.ex;h=39a725a6941c86c61ae69d18657772ad7fb61c43;hb=833161b5d21f85e2276cd0cee3e148ecbe6e1f05;hp=1e9da728373d1638f0d38dcd58f9e0d266137de8;hpb=305d2194136d4560e02c110d528164034d3727b2;p=akkoma

diff --git a/lib/pleroma/web/media_proxy/media_proxy.ex b/lib/pleroma/web/media_proxy/media_proxy.ex
index 1e9da7283..39a725a69 100644
--- a/lib/pleroma/web/media_proxy/media_proxy.ex
+++ b/lib/pleroma/web/media_proxy/media_proxy.ex
@@ -19,11 +19,16 @@ defmodule Pleroma.Web.MediaProxy do
     else
       secret = Application.get_env(:pleroma, Pleroma.Web.Endpoint)[:secret_key_base]
 
+      # Must preserve `%2F` for compatibility with S3 (https://git.pleroma.social/pleroma/pleroma/issues/580)
+      replacement = get_replacement(url, ":2F:")
+
       # The URL is url-decoded and encoded again to ensure it is correctly encoded and not twice.
       base64 =
         url
+        |> String.replace("%2F", replacement)
         |> URI.decode()
         |> URI.encode()
+        |> String.replace(replacement, "%2F")
         |> Base.url_encode64(@base64_opts)
 
       sig = :crypto.hmac(:sha, secret, base64)
@@ -60,4 +65,12 @@ defmodule Pleroma.Web.MediaProxy do
     |> Enum.filter(fn value -> value end)
     |> Path.join()
   end
+
+  defp get_replacement(url, replacement) do
+    if String.contains?(url, replacement) do
+      get_replacement(url, replacement <> replacement)
+    else
+      replacement
+    end
+  end
 end