mediaproxy: fix empty url & add some tests

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href 2018-11-20 17:46:54 +01:00
parent fbc3f2893a
commit 7f4c3a1e99
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2 changed files with 117 additions and 2 deletions

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@ -3,6 +3,8 @@ defmodule Pleroma.Web.MediaProxy do
def url(nil), do: nil
def url(""), do: nil
def url(url = "/" <> _), do: url
def url(url) do
@ -15,10 +17,10 @@ def url(url) do
base64 = Base.url_encode64(url, @base64_opts)
sig = :crypto.hmac(:sha, secret, base64)
sig64 = sig |> Base.url_encode64(@base64_opts)
filename = Path.basename(URI.parse(url).path)
filename = if path = URI.parse(url).path, do: "/" <> Path.basename(path), else: ""
Keyword.get(config, :base_url, Pleroma.Web.base_url()) <>
"/proxy/#{sig64}/#{base64}/#{filename}"
"/proxy/#{sig64}/#{base64}#{filename}"
end
end

113
test/media_proxy_test.exs Normal file
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@ -0,0 +1,113 @@
defmodule Pleroma.MediaProxyTest do
use ExUnit.Case
import Pleroma.Web.MediaProxy
describe "when enabled" do
setup do
enabled = Pleroma.Config.get([:media_proxy, :enabled])
unless enabled do
Pleroma.Config.put([:media_proxy, :enabled], true)
on_exit(fn -> Pleroma.Config.put([:media_proxy, :enabled], enabled) end)
end
:ok
end
test "ignores invalid url" do
assert url(nil) == nil
assert url("") == nil
end
test "ignores relative url" do
assert url("/local") == "/local"
assert url("/") == "/"
end
test "ignores local url" do
local_url = Pleroma.Web.Endpoint.url() <> "/hello"
local_root = Pleroma.Web.Endpoint.url()
assert url(local_url) == local_url
assert url(local_root) == local_root
end
test "encodes and decodes URL" do
url = "https://pleroma.soykaf.com/static/logo.png"
encoded = url(url)
assert String.starts_with?(
encoded,
Pleroma.Config.get([:media_proxy, :base_url], Pleroma.Web.base_url())
)
assert String.ends_with?(encoded, "/logo.png")
assert decode_result(encoded) == url
end
test "encodes and decodes URL without a path" do
url = "https://pleroma.soykaf.com"
encoded = url(url)
assert decode_result(encoded) == url
end
test "encodes and decodes URL without an extension" do
url = "https://pleroma.soykaf.com/path/"
encoded = url(url)
assert String.ends_with?(encoded, "/path")
assert decode_result(encoded) == url
end
test "encodes and decodes URL and ignores query params for the path" do
url = "https://pleroma.soykaf.com/static/logo.png?93939393939&bunny=true"
encoded = url(url)
assert String.ends_with?(encoded, "/logo.png")
assert decode_result(encoded) == url
end
test "validates signature" do
secret_key_base = Pleroma.Config.get([Pleroma.Web.Endpoint, :secret_key_base])
on_exit(fn ->
Pleroma.Config.put([Pleroma.Web.Endpoint, :secret_key_base], secret_key_base)
end)
encoded = url("https://pleroma.social")
Pleroma.Config.put(
[Pleroma.Web.Endpoint, :secret_key_base],
"00000000000000000000000000000000000000000000000"
)
[_, "proxy", sig, base64 | _] = URI.parse(encoded).path |> String.split("/")
assert decode_url(sig, base64) == {:error, :invalid_signature}
end
end
describe "when disabled" do
setup do
enabled = Pleroma.Config.get([:media_proxy, :enabled])
if enabled do
Pleroma.Config.put([:media_proxy, :enabled], false)
on_exit(fn ->
Pleroma.Config.put([:media_proxy, :enabled], enabled)
:ok
end)
end
:ok
end
test "does not encode remote urls" do
assert url("https://google.fr") == "https://google.fr"
end
end
defp decode_result(encoded) do
[_, "proxy", sig, base64 | _] = URI.parse(encoded).path |> String.split("/")
{:ok, decoded} = decode_url(sig, base64)
decoded
end
end