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My custom branche(s) on git.pleroma.social/pleroma/pleroma
commit: 167f810ff18fdc0271e6908d1d07c2f715e3f34f
parent: 95c085174dc523f2898f02120d7ff0b120930d91
Author: feld <feld@feld.me>
Date:   Tue,  9 Jul 2019 16:00:44 +0000

Merge branch 'proxy-error' into 'develop'

make sure the url used by proxy is same as original url

See merge request pleroma/pleroma!1383

Diffstat:

Mlib/pleroma/web/media_proxy/media_proxy.ex23+----------------------
Mtest/media_proxy_test.exs35++++++++++++++++++++++++-----------
2 files changed, 25 insertions(+), 33 deletions(-)

diff --git a/lib/pleroma/web/media_proxy/media_proxy.ex b/lib/pleroma/web/media_proxy/media_proxy.ex @@ -33,20 +33,7 @@ defmodule Pleroma.Web.MediaProxy do def encode_url(url) do secret = Pleroma.Config.get([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) - + base64 = Base.url_encode64(url, @base64_opts) sig = :crypto.hmac(:sha, secret, base64) sig64 = sig |> Base.url_encode64(@base64_opts) @@ -80,12 +67,4 @@ 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 diff --git a/test/media_proxy_test.exs b/test/media_proxy_test.exs @@ -70,14 +70,6 @@ defmodule Pleroma.MediaProxyTest do assert decode_result(encoded) == url end - test "ensures urls are url-encoded" do - assert decode_result(url("https://pleroma.social/Hello world.jpg")) == - "https://pleroma.social/Hello%20world.jpg" - - assert decode_result(url("https://pleroma.social/Hello%20world.jpg")) == - "https://pleroma.social/Hello%20world.jpg" - end - test "validates signature" do secret_key_base = Pleroma.Config.get([Pleroma.Web.Endpoint, :secret_key_base]) @@ -141,10 +133,31 @@ defmodule Pleroma.MediaProxyTest do assert String.starts_with?(encoded, Pleroma.Config.get([:media_proxy, :base_url])) end - # https://git.pleroma.social/pleroma/pleroma/issues/580 - test "encoding S3 links (must preserve `%2F`)" do + # Some sites expect ASCII encoded characters in the URL to be preserved even if + # unnecessary. + # Issues: https://git.pleroma.social/pleroma/pleroma/issues/580 + # https://git.pleroma.social/pleroma/pleroma/issues/1055 + test "preserve ASCII encoding" do + url = + "https://pleroma.com/%20/%21/%22/%23/%24/%25/%26/%27/%28/%29/%2A/%2B/%2C/%2D/%2E/%2F/%30/%31/%32/%33/%34/%35/%36/%37/%38/%39/%3A/%3B/%3C/%3D/%3E/%3F/%40/%41/%42/%43/%44/%45/%46/%47/%48/%49/%4A/%4B/%4C/%4D/%4E/%4F/%50/%51/%52/%53/%54/%55/%56/%57/%58/%59/%5A/%5B/%5C/%5D/%5E/%5F/%60/%61/%62/%63/%64/%65/%66/%67/%68/%69/%6A/%6B/%6C/%6D/%6E/%6F/%70/%71/%72/%73/%74/%75/%76/%77/%78/%79/%7A/%7B/%7C/%7D/%7E/%7F/%80/%81/%82/%83/%84/%85/%86/%87/%88/%89/%8A/%8B/%8C/%8D/%8E/%8F/%90/%91/%92/%93/%94/%95/%96/%97/%98/%99/%9A/%9B/%9C/%9D/%9E/%9F/%C2%A0/%A1/%A2/%A3/%A4/%A5/%A6/%A7/%A8/%A9/%AA/%AB/%AC/%C2%AD/%AE/%AF/%B0/%B1/%B2/%B3/%B4/%B5/%B6/%B7/%B8/%B9/%BA/%BB/%BC/%BD/%BE/%BF/%C0/%C1/%C2/%C3/%C4/%C5/%C6/%C7/%C8/%C9/%CA/%CB/%CC/%CD/%CE/%CF/%D0/%D1/%D2/%D3/%D4/%D5/%D6/%D7/%D8/%D9/%DA/%DB/%DC/%DD/%DE/%DF/%E0/%E1/%E2/%E3/%E4/%E5/%E6/%E7/%E8/%E9/%EA/%EB/%EC/%ED/%EE/%EF/%F0/%F1/%F2/%F3/%F4/%F5/%F6/%F7/%F8/%F9/%FA/%FB/%FC/%FD/%FE/%FF" + + encoded = url(url) + assert decode_result(encoded) == url + end + + # This includes unsafe/reserved characters which are not interpreted as part of the URL + # and would otherwise have to be ASCII encoded. It is our role to ensure the proxied URL + # is unmodified, so we are testing these characters anyway. + test "preserve non-unicode characters per RFC3986" do url = - "https://s3.amazonaws.com/example/test.png?X-Amz-Credential=your-access-key-id%2F20130721%2Fus-east-1%2Fs3%2Faws4_request" + "https://pleroma.com/ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890-._~:/?#[]@!$&'()*+,;=|^`{}" + + encoded = url(url) + assert decode_result(encoded) == url + end + + test "preserve unicode characters" do + url = "https://ko.wikipedia.org/wiki/위키백과:대문" encoded = url(url) assert decode_result(encoded) == url