Add an endpoint for activity stream csp report

onyx/api/v4.py

@@ -1,4 +1,11 @@
-from flask import Blueprint
+import ujson
+
+from flask import (
+    Blueprint,
+    request,
+    Response,
+)
+
 from onyx.environment import Environment
 from onyx.api.v3 import handle_activity_stream_ping
 
@@ -14,5 +21,45 @@ def activity_stream():
     return handle_activity_stream_ping("activity_stream", "activity_stream")
 
 
+@links.route('/activity-stream/csp', methods=['POST'])
+@env.statsd.timer('v4_links_activity_stream_csp')
+def activity_stream_csp():
+    """Log activity stream CSP report sent from Firefox on CSP violations"""
+    ip_addr = None
+    ua = None
+    action = None
+
+    try:
+        client_payload_raw = request.get_data(cache=False)
+        client_payload = ujson.decode(client_payload_raw)
+        action = "activity_stream_csp"
+        # treat it as malformed payload if "csp-report" is missing
+        # see https://developers.google.com/web/fundamentals/security/csp/#reporting
+        client_payload = client_payload["csp-report"]
+        client_payload["action"] = action
+
+        ip_addr = request.headers.get('X-Forwarded-For')
+        if ip_addr is None:
+            ip_addr = request.remote_addr
+
+        ua = request.headers.get('User-Agent')
+        client_payload["ua"] = ua
+        client_payload["ip"] = ip_addr
+    except Exception:
+        env.log_dict(name="client_error", action="activity_stream_csp_malformed_payload", message={
+            "ip": ip_addr,
+            "ua": ua,
+            "ver": 3,
+        })
+
+        env.statsd.incr("activity_stream_csp_error")
+        return Response('', content_type='application/json; charset=utf-8', status=400)
+
+    env.log_dict(name="activity_stream", action=action, message=client_payload)
+
+    env.statsd.incr("activiyt_stream_csp")
+    return Response('', content_type='application/json; charset=utf-8', status=200)
+
+
 def register_routes(app):
     app.register_blueprint(links)

tests/api/test_v4.py

@@ -5,6 +5,7 @@ from tests.base import BaseTestCase
 
 
 LINK_ACTIVITY_STREAM_V4 = "v4_links.activity_stream"
+LINK_ACTIVITY_STREAM_V4_CSP = "v4_links.activity_stream_csp"
 
 
 class TestActivityStreamPing(BaseTestCase):
@@ -30,3 +31,28 @@ class TestActivityStreamPing(BaseTestCase):
                                     data=json.dumps({"data": "test", "action": "activity_stream_session"}))
         assert_equals(response.status_code, 200)
         assert_equals(response.content_length, 0)
+
+
+class TestActivityStreamCSP(BaseTestCase):
+    def test_missing_payload(self):
+        response = self.client.post(url_for(LINK_ACTIVITY_STREAM_V4_CSP),
+                                    content_type='application/json',
+                                    headers=[("User-Agent", "TestClient")])
+        assert_equals(response.status_code, 400)
+        assert_equals(response.content_length, 0)
+
+    def test_junk_payload(self):
+        response = self.client.post(url_for(LINK_ACTIVITY_STREAM_V4_CSP),
+                                    content_type='application/json',
+                                    headers=[("User-Agent", "TestClient")],
+                                    data='"hfdsfdsjkl"')
+        assert_equals(response.status_code, 400)
+        assert_equals(response.content_length, 0)
+
+    def test_payload_meta(self):
+        response = self.client.post(url_for(LINK_ACTIVITY_STREAM_V4_CSP),
+                                    content_type='application/json',
+                                    headers=[("User-Agent", "TestClient")],
+                                    data=json.dumps({"csp-report": {"document-uri": "http://example.com/page.html"}}))
+        assert_equals(response.status_code, 200)
+        assert_equals(response.content_length, 0)