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HttpSecurityPlug: Don't allow unsafe-eval by default

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This commit is contained in:
Lain Soykaf 2024-05-27 21:26:40 +04:00
commit 1c699144d2
5 changed files with 204 additions and 64 deletions
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208
test/pleroma/web/plugs/http_security_plug_test.exs
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@ -3,14 +3,52 @@
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
use Pleroma.Web.ConnCase
use Pleroma.Web.ConnCase, async: true
alias Plug.Conn
describe "http security enabled" do
setup do: clear_config([:http_security, :enabled], true)
import Mox
test "it sends CSP headers when enabled", %{conn: conn} do
setup do
base_config = Pleroma.Config.get([:http_security])
%{base_config: base_config}
end
defp mock_config(config, additional \\ %{}) do
Pleroma.UnstubbedConfigMock
|> stub(:get, fn
[:http_security, key] -> config[key]
key -> additional[key]
end)
end
describe "http security enabled" do
setup %{base_config: base_config} do
%{base_config: Keyword.put(base_config, :enabled, true)}
end
test "it does not contain unsafe-eval", %{conn: conn, base_config: base_config} do
mock_config(base_config)
conn = get(conn, "/api/v1/instance")
[header] = Conn.get_resp_header(conn, "content-security-policy")
refute header =~ ~r/unsafe-eval/
end
test "with allow_unsafe_eval set, it does contain it", %{conn: conn, base_config: base_config} do
base_config =
base_config
|> Keyword.put(:allow_unsafe_eval, true)
mock_config(base_config)
conn = get(conn, "/api/v1/instance")
[header] = Conn.get_resp_header(conn, "content-security-policy")
assert header =~ ~r/unsafe-eval/
end
test "it sends CSP headers when enabled", %{conn: conn, base_config: base_config} do
mock_config(base_config)
conn = get(conn, "/api/v1/instance")
refute Conn.get_resp_header(conn, "x-xss-protection") == []
@ -22,8 +60,10 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
refute Conn.get_resp_header(conn, "content-security-policy") == []
end
test "it sends STS headers when enabled", %{conn: conn} do
clear_config([:http_security, :sts], true)
test "it sends STS headers when enabled", %{conn: conn, base_config: base_config} do
base_config
|> Keyword.put(:sts, true)
|> mock_config()
conn = get(conn, "/api/v1/instance")
@ -31,8 +71,10 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
refute Conn.get_resp_header(conn, "expect-ct") == []
end
test "it does not send STS headers when disabled", %{conn: conn} do
clear_config([:http_security, :sts], false)
test "it does not send STS headers when disabled", %{conn: conn, base_config: base_config} do
base_config
|> Keyword.put(:sts, false)
|> mock_config()
conn = get(conn, "/api/v1/instance")
@ -40,19 +82,30 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
assert Conn.get_resp_header(conn, "expect-ct") == []
end
test "referrer-policy header reflects configured value", %{conn: conn} do
resp = get(conn, "/api/v1/instance")
test "referrer-policy header reflects configured value", %{
conn: conn,
base_config: base_config
} do
mock_config(base_config)
resp = get(conn, "/api/v1/instance")
assert Conn.get_resp_header(resp, "referrer-policy") == ["same-origin"]
clear_config([:http_security, :referrer_policy], "no-referrer")
base_config
|> Keyword.put(:referrer_policy, "no-referrer")
|> mock_config
resp = get(conn, "/api/v1/instance")
assert Conn.get_resp_header(resp, "referrer-policy") == ["no-referrer"]
end
test "it sends `report-to` & `report-uri` CSP response headers", %{conn: conn} do
test "it sends `report-to` & `report-uri` CSP response headers", %{
conn: conn,
base_config: base_config
} do
mock_config(base_config)
conn = get(conn, "/api/v1/instance")
[csp] = Conn.get_resp_header(conn, "content-security-policy")
@ -65,7 +118,11 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
"{\"endpoints\":[{\"url\":\"https://endpoint.com\"}],\"group\":\"csp-endpoint\",\"max-age\":10886400}"
end
test "default values for img-src and media-src with disabled media proxy", %{conn: conn} do
test "default values for img-src and media-src with disabled media proxy", %{
conn: conn,
base_config: base_config
} do
mock_config(base_config)
conn = get(conn, "/api/v1/instance")
[csp] = Conn.get_resp_header(conn, "content-security-policy")
@ -73,60 +130,129 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
assert csp =~ "img-src 'self' data: blob: https:;"
end
test "it sets the Service-Worker-Allowed header", %{conn: conn} do
clear_config([:http_security, :enabled], true)
clear_config([:frontends, :primary], %{"name" => "fedi-fe", "ref" => "develop"})
test "it sets the Service-Worker-Allowed header", %{conn: conn, base_config: base_config} do
base_config
|> Keyword.put(:enabled, true)
clear_config([:frontends, :available], %{
"fedi-fe" => %{
"name" => "fedi-fe",
"custom-http-headers" => [{"service-worker-allowed", "/"}]
}
})
additional_config =
%{}
|> Map.put([:frontends, :primary], %{"name" => "fedi-fe", "ref" => "develop"})
|> Map.put(
[:frontends, :available],
%{
"fedi-fe" => %{
"name" => "fedi-fe",
"custom-http-headers" => [{"service-worker-allowed", "/"}]
}
}
)
mock_config(base_config, additional_config)
conn = get(conn, "/api/v1/instance")
assert Conn.get_resp_header(conn, "service-worker-allowed") == ["/"]
end
end
describe "img-src and media-src" do
setup do
clear_config([:http_security, :enabled], true)
clear_config([:media_proxy, :enabled], true)
clear_config([:media_proxy, :proxy_opts, :redirect_on_failure], false)
setup %{base_config: base_config} do
base_config =
base_config
|> Keyword.put(:enabled, true)
additional_config =
%{}
|> Map.put([:media_proxy, :enabled], true)
|> Map.put([:media_proxy, :proxy_opts, :redirect_on_failure], false)
|> Map.put([:media_proxy, :whitelist], [])
%{base_config: base_config, additional_config: additional_config}
end
test "media_proxy with base_url", %{conn: conn} do
test "media_proxy with base_url", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
url = "https://example.com"
clear_config([:media_proxy, :base_url], url)
additional_config =
additional_config
|> Map.put([:media_proxy, :base_url], url)
mock_config(base_config, additional_config)
assert_media_img_src(conn, url)
end
test "upload with base url", %{conn: conn} do
test "upload with base url", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
url = "https://example2.com"
clear_config([Pleroma.Upload, :base_url], url)
additional_config =
additional_config
|> Map.put([Pleroma.Upload, :base_url], url)
mock_config(base_config, additional_config)
assert_media_img_src(conn, url)
end
test "with S3 public endpoint", %{conn: conn} do
test "with S3 public endpoint", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
url = "https://example3.com"
clear_config([Pleroma.Uploaders.S3, :public_endpoint], url)
additional_config =
additional_config
|> Map.put([Pleroma.Uploaders.S3, :public_endpoint], url)
mock_config(base_config, additional_config)
assert_media_img_src(conn, url)
end
test "with captcha endpoint", %{conn: conn} do
clear_config([Pleroma.Captcha.Mock, :endpoint], "https://captcha.com")
test "with captcha endpoint", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
additional_config =
additional_config
|> Map.put([Pleroma.Captcha.Mock, :endpoint], "https://captcha.com")
|> Map.put([Pleroma.Captcha, :method], Pleroma.Captcha.Mock)
mock_config(base_config, additional_config)
assert_media_img_src(conn, "https://captcha.com")
end
test "with media_proxy whitelist", %{conn: conn} do
clear_config([:media_proxy, :whitelist], ["https://example6.com", "https://example7.com"])
test "with media_proxy whitelist", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
additional_config =
additional_config
|> Map.put([:media_proxy, :whitelist], ["https://example6.com", "https://example7.com"])
mock_config(base_config, additional_config)
assert_media_img_src(conn, "https://example7.com https://example6.com")
end
# TODO: delete after removing support bare domains for media proxy whitelist
test "with media_proxy bare domains whitelist (deprecated)", %{conn: conn} do
clear_config([:media_proxy, :whitelist], ["example4.com", "example5.com"])
test "with media_proxy bare domains whitelist (deprecated)", %{
conn: conn,
base_config: base_config,
additional_config: additional_config
} do
additional_config =
additional_config
|> Map.put([:media_proxy, :whitelist], ["example4.com", "example5.com"])
mock_config(base_config, additional_config)
assert_media_img_src(conn, "example5.com example4.com")
end
end
@ -138,8 +264,10 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
assert csp =~ "img-src 'self' data: blob: #{url};"
end
test "it does not send CSP headers when disabled", %{conn: conn} do
clear_config([:http_security, :enabled], false)
test "it does not send CSP headers when disabled", %{conn: conn, base_config: base_config} do
base_config
|> Keyword.put(:enabled, false)
|> mock_config
conn = get(conn, "/api/v1/instance")