Merge branch 'feature/890-add-report-uri' into 'develop'

Feature/890 add report uri

Closes #890

See merge request pleroma/pleroma!1164

CHANGELOG.md

@@ -20,6 +20,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Configuration: `fetch_initial_posts` option
 - Configuration: `notify_email` option
 - Configuration: Media proxy `whitelist` option
+- Configuration: `report_uri` option
 - Pleroma API: User subscriptions
 - Pleroma API: Healthcheck endpoint
 - Admin API: Endpoints for listing/revoking invite tokens

config/test.exs

@@ -61,6 +61,8 @@
 
 config :pleroma, :app_account_creation, max_requests: 5
 
+config :pleroma, :http_security, report_uri: "https://endpoint.com"
+
 try do
   import_config "test.secret.exs"
 rescue

docs/config.md

@@ -286,7 +286,8 @@ This will make Pleroma listen on `127.0.0.1` port `8080` and generate urls start
 * ``sts``: Whether to additionally send a `Strict-Transport-Security` header
 * ``sts_max_age``: The maximum age for the `Strict-Transport-Security` header if sent
 * ``ct_max_age``: The maximum age for the `Expect-CT` header if sent
-* ``referrer_policy``: The referrer policy to use, either `"same-origin"` or `"no-referrer"`.
+* ``referrer_policy``: The referrer policy to use, either `"same-origin"` or `"no-referrer"`
+* ``report_uri``: Adds the specified url to `report-uri` and `report-to` group in CSP header.
 
 ## :mrf_user_allowlist
 

docs/introduction.md

@@ -1,30 +1,30 @@
 # Introduction to Pleroma
 ## What is Pleroma?
-Pleroma is a federated social networking platform, compatible with GNU social, Mastodon and other OStatus and ActivityPub implementations. It is free software licensed under the AGPLv3.  
-It actually consists of two components: a backend, named simply Pleroma, and a user-facing frontend, named Pleroma-FE. It also includes the Mastodon frontend, if that's your thing.  
-It's part of what we call the fediverse, a federated network of instances which speak common protocols and can communicate with each other.  
+Pleroma is a federated social networking platform, compatible with GNU social, Mastodon and other OStatus and ActivityPub implementations. It is free software licensed under the AGPLv3.
+It actually consists of two components: a backend, named simply Pleroma, and a user-facing frontend, named Pleroma-FE. It also includes the Mastodon frontend, if that's your thing.
+It's part of what we call the fediverse, a federated network of instances which speak common protocols and can communicate with each other.
 One account on a instance is enough to talk to the entire fediverse!
-  
+
 ## How can I use it?
 
-Pleroma instances are already widely deployed, a list can be found here:  
+Pleroma instances are already widely deployed, a list can be found here:
 http://distsn.org/pleroma-instances.html
 
-If you don't feel like joining an existing instance, but instead prefer to deploy your own instance, that's easy too!  
-Installation instructions can be found here:  
+If you don't feel like joining an existing instance, but instead prefer to deploy your own instance, that's easy too!
+Installation instructions can be found here:
 [main Pleroma wiki](/)
-  
+
 ## I got an account, now what?
-Great! Now you can explore the fediverse!  
-- Open the login page for your Pleroma instance (for ex. https://pleroma.soykaf.com) and login with your username and password.  
-(If you don't have one yet, click on Register) :slightly_smiling_face:  
+Great! Now you can explore the fediverse!
+- Open the login page for your Pleroma instance (for ex. https://pleroma.soykaf.com) and login with your username and password.
+(If you don't have one yet, click on Register) :slightly_smiling_face:
 
 At this point you will have two columns in front of you.
 
 ### Left column
-- first block: here you can see your avatar, your nickname a bio, and statistics (Statuses, Following, Followers).  
-Under that you have a text form which allows you to post new statuses. The icon on the left is for uploading media files and attach them to your post. The number under the text form is a character counter, every instance can have a different character limit (the default is 5000).  
-If you want to mention someone, type @ + name of the person. A drop-down menu will help you in finding the right person. :slight_smile:   
+- first block: here you can see your avatar, your nickname a bio, and statistics (Statuses, Following, Followers).
+Under that you have a text form which allows you to post new statuses. The icon on the left is for uploading media files and attach them to your post. The number under the text form is a character counter, every instance can have a different character limit (the default is 5000).
+If you want to mention someone, type @ + name of the person. A drop-down menu will help you in finding the right person. :slight_smile:
 To post your status, simply press Submit.
 
 - second block: Here you can switch between the different timelines:
@@ -38,7 +38,7 @@ To post your status, simply press Submit.
 - fourth block: This is the Notifications block, here you will get notified whenever somebody mentions you, follows you, repeats or favorites one of your statuses.
 
 ### Right column
-This is where the interesting stuff happens! :slight_smile:   
+This is where the interesting stuff happens! :slight_smile:
 Depending on the timeline you will see different statuses, but each status has a standard structure:
 - Icon + name + link to profile. An optional left-arrow if it's a reply to another status (hovering will reveal the replied-to status).
 - A + button on the right allows you to Expand/Collapse an entire discussion thread. It also updates in realtime!
@@ -47,9 +47,9 @@ Depending on the timeline you will see different statuses, but each status has a
 - Four buttons (left to right): Reply, Repeat, Favorite, Delete.
 
 ## Mastodon interface
-If the Pleroma interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too! :smile:  
-Just add a "/web" after your instance url (for ex. https://pleroma.soycaf.com/web) and you'll end on the Mastodon web interface, but with a Pleroma backend! MAGIC! :fireworks:  
-For more information on the Mastodon interface, please look here:  
+If the Pleroma interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too! :smile:
+Just add a "/web" after your instance url (for ex. https://pleroma.soycaf.com/web) and you'll end on the Mastodon web interface, but with a Pleroma backend! MAGIC! :fireworks:
+For more information on the Mastodon interface, please look here:
 https://github.com/tootsuite/documentation/blob/master/Using-Mastodon/User-guide.md
 
 Remember, what you see is only the frontend part of Mastodon, the backend is still Pleroma.

lib/pleroma/plugs/http_security_plug.ex

@@ -20,8 +20,9 @@ def call(conn, _options) do
 
   defp headers do
     referrer_policy = Config.get([:http_security, :referrer_policy])
+    report_uri = Config.get([:http_security, :report_uri])
 
-    [
+    headers = [
       {"x-xss-protection", "1; mode=block"},
       {"x-permitted-cross-domain-policies", "none"},
       {"x-frame-options", "DENY"},
@@ -30,12 +31,27 @@ defp headers do
       {"x-download-options", "noopen"},
       {"content-security-policy", csp_string() <> ";"}
     ]
+
+    if report_uri do
+      report_group = %{
+        "group" => "csp-endpoint",
+        "max-age" => 10_886_400,
+        "endpoints" => [
+          %{"url" => report_uri}
+        ]
+      }
+
+      headers ++ [{"reply-to", Jason.encode!(report_group)}]
+    else
+      headers
+    end
   end
 
   defp csp_string do
     scheme = Config.get([Pleroma.Web.Endpoint, :url])[:scheme]
     static_url = Pleroma.Web.Endpoint.static_url()
     websocket_url = Pleroma.Web.Endpoint.websocket_url()
+    report_uri = Config.get([:http_security, :report_uri])
 
     connect_src = "connect-src 'self' #{static_url} #{websocket_url}"
 
@@ -53,7 +69,7 @@ defp csp_string do
         "script-src 'self'"
       end
 
-    [
+    main_part = [
       "default-src 'none'",
       "base-uri 'self'",
       "frame-ancestors 'none'",
@@ -63,11 +79,14 @@ defp csp_string do
       "font-src 'self'",
       "manifest-src 'self'",
       connect_src,
-      script_src,
-      if scheme == "https" do
-        "upgrade-insecure-requests"
-      end
+      script_src
     ]
+
+    report = if report_uri, do: ["report-uri #{report_uri}; report-to csp-endpoint"], else: []
+
+    insecure = if scheme == "https", do: ["upgrade-insecure-requests"], else: []
+
+    (main_part ++ report ++ insecure)
     |> Enum.join("; ")
   end
 

test/plugs/http_security_plug_test.exs

@@ -7,28 +7,89 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
   alias Pleroma.Config
   alias Plug.Conn
 
-  test "it sends CSP headers when enabled", %{conn: conn} do
-    Config.put([:http_security, :enabled], true)
+  describe "http security enabled" do
+    setup do
+      enabled = Config.get([:http_securiy, :enabled])
 
-    conn =
-      conn
-      |> get("/api/v1/instance")
+      Config.put([:http_security, :enabled], true)
 
-    refute Conn.get_resp_header(conn, "x-xss-protection") == []
-    refute Conn.get_resp_header(conn, "x-permitted-cross-domain-policies") == []
-    refute Conn.get_resp_header(conn, "x-frame-options") == []
-    refute Conn.get_resp_header(conn, "x-content-type-options") == []
-    refute Conn.get_resp_header(conn, "x-download-options") == []
-    refute Conn.get_resp_header(conn, "referrer-policy") == []
-    refute Conn.get_resp_header(conn, "content-security-policy") == []
+      on_exit(fn ->
+        Config.put([:http_security, :enabled], enabled)
+      end)
+
+      :ok
+    end
+
+    test "it sends CSP headers when enabled", %{conn: conn} do
+      conn = get(conn, "/api/v1/instance")
+
+      refute Conn.get_resp_header(conn, "x-xss-protection") == []
+      refute Conn.get_resp_header(conn, "x-permitted-cross-domain-policies") == []
+      refute Conn.get_resp_header(conn, "x-frame-options") == []
+      refute Conn.get_resp_header(conn, "x-content-type-options") == []
+      refute Conn.get_resp_header(conn, "x-download-options") == []
+      refute Conn.get_resp_header(conn, "referrer-policy") == []
+      refute Conn.get_resp_header(conn, "content-security-policy") == []
+    end
+
+    test "it sends STS headers when enabled", %{conn: conn} do
+      Config.put([:http_security, :sts], true)
+
+      conn = get(conn, "/api/v1/instance")
+
+      refute Conn.get_resp_header(conn, "strict-transport-security") == []
+      refute Conn.get_resp_header(conn, "expect-ct") == []
+    end
+
+    test "it does not send STS headers when disabled", %{conn: conn} do
+      Config.put([:http_security, :sts], false)
+
+      conn = get(conn, "/api/v1/instance")
+
+      assert Conn.get_resp_header(conn, "strict-transport-security") == []
+      assert Conn.get_resp_header(conn, "expect-ct") == []
+    end
+
+    test "referrer-policy header reflects configured value", %{conn: conn} do
+      conn = get(conn, "/api/v1/instance")
+
+      assert Conn.get_resp_header(conn, "referrer-policy") == ["same-origin"]
+
+      Config.put([:http_security, :referrer_policy], "no-referrer")
+
+      conn =
+        build_conn()
+        |> get("/api/v1/instance")
+
+      assert Conn.get_resp_header(conn, "referrer-policy") == ["no-referrer"]
+    end
+
+    test "it sends `report-to` & `report-uri` CSP response headers" do
+      conn =
+        build_conn()
+        |> get("/api/v1/instance")
+
+      [csp] = Conn.get_resp_header(conn, "content-security-policy")
+
+      assert csp =~ ~r|report-uri https://endpoint.com; report-to csp-endpoint;|
+
+      [reply_to] = Conn.get_resp_header(conn, "reply-to")
+
+      assert reply_to ==
+               "{\"endpoints\":[{\"url\":\"https://endpoint.com\"}],\"group\":\"csp-endpoint\",\"max-age\":10886400}"
+    end
   end
 
   test "it does not send CSP headers when disabled", %{conn: conn} do
+    enabled = Config.get([:http_securiy, :enabled])
+
     Config.put([:http_security, :enabled], false)
 
-    conn =
-      conn
-      |> get("/api/v1/instance")
+    on_exit(fn ->
+      Config.put([:http_security, :enabled], enabled)
+    end)
+
+    conn = get(conn, "/api/v1/instance")
 
     assert Conn.get_resp_header(conn, "x-xss-protection") == []
     assert Conn.get_resp_header(conn, "x-permitted-cross-domain-policies") == []
@@ -38,46 +99,4 @@ test "it does not send CSP headers when disabled", %{conn: conn} do
     assert Conn.get_resp_header(conn, "referrer-policy") == []
     assert Conn.get_resp_header(conn, "content-security-policy") == []
   end
-
-  test "it sends STS headers when enabled", %{conn: conn} do
-    Config.put([:http_security, :enabled], true)
-    Config.put([:http_security, :sts], true)
-
-    conn =
-      conn
-      |> get("/api/v1/instance")
-
-    refute Conn.get_resp_header(conn, "strict-transport-security") == []
-    refute Conn.get_resp_header(conn, "expect-ct") == []
-  end
-
-  test "it does not send STS headers when disabled", %{conn: conn} do
-    Config.put([:http_security, :enabled], true)
-    Config.put([:http_security, :sts], false)
-
-    conn =
-      conn
-      |> get("/api/v1/instance")
-
-    assert Conn.get_resp_header(conn, "strict-transport-security") == []
-    assert Conn.get_resp_header(conn, "expect-ct") == []
-  end
-
-  test "referrer-policy header reflects configured value", %{conn: conn} do
-    Config.put([:http_security, :enabled], true)
-
-    conn =
-      conn
-      |> get("/api/v1/instance")
-
-    assert Conn.get_resp_header(conn, "referrer-policy") == ["same-origin"]
-
-    Config.put([:http_security, :referrer_policy], "no-referrer")
-
-    conn =
-      build_conn()
-      |> get("/api/v1/instance")
-
-    assert Conn.get_resp_header(conn, "referrer-policy") == ["no-referrer"]
-  end
 end

test/web/common_api/common_api_test.exs

@@ -310,14 +310,14 @@ test "does not update report state when state is unsupported" do
     test "add a reblog mute", %{muter: muter, muted: muted} do
       {:ok, muter} = CommonAPI.hide_reblogs(muter, muted)
 
-      assert Pleroma.User.showing_reblogs?(muter, muted) == false
+      assert User.showing_reblogs?(muter, muted) == false
     end
 
     test "remove a reblog mute", %{muter: muter, muted: muted} do
       {:ok, muter} = CommonAPI.hide_reblogs(muter, muted)
       {:ok, muter} = CommonAPI.show_reblogs(muter, muted)
 
-      assert Pleroma.User.showing_reblogs?(muter, muted) == true
+      assert User.showing_reblogs?(muter, muted) == true
     end
   end
 end