Issue 7290 - Fix signature production in sitekey_frame.py

sitescripts/testpages/test/test_sitekey_frame.py

Index: sitescripts/testpages/test/test_sitekey_frame.py
===================================================================
new file mode 100644
--- /dev/null
+++ b/sitescripts/testpages/test/test_sitekey_frame.py
@@ -0,0 +1,93 @@
+# This file is part of the Adblock Plus web scripts,
+# Copyright (C) 2006-present eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
+import base64
+import sys
+import urllib2
+
+from wsgi_intercept import (urllib_intercept, add_wsgi_intercept,
+                            remove_wsgi_intercept)
+
+# Fake import M2Crypto so that we don't need to install the real thing for this
+# test where we don't want encryption anyway.
+sys.modules['M2Crypto'] = sys
+
+from sitescripts.testpages.web import sitekey_frame
+
+
+# Request parameters.
+HOST = 'test.local'
+SCRIPT_NAME = 'sitekey-frame'
+USER_AGENT = 'foobar'
+
+# This is the string that should be signed by the web handler.
+TO_SIGN = '/{}\x00{}\x00{}'.format(SCRIPT_NAME, HOST, USER_AGENT)
+
+
+class FakeTemplate:
+    """Jinja template replacement for testing."""
+
+    def __init__(self, *args, **kw):
+        pass
+
+    def render(self, params):
+        """Stringify the parameters."""
+        return str(params)
+
+
+class FakeM2Crypto:
+    """M2Crypto replacement for testing."""
+
+    class EVP:
+        @staticmethod
+        def load_key(path):
+            return FakeM2Crypto()
+
+    def sign_init(self):
+        pass
+
+    def sign_update(self, data):
+        self.data = data
+
+    def as_der(self):
+        return 'key'
+
+    def final(self):
+        return self.data
+
+
+MODULE = 'sitescripts.testpages.web.sitekey_frame'
+
+
+def test_sitekey_frame(mocker):
+    mocker.patch(MODULE + '.get_template', FakeTemplate)
+    mocker.patch(MODULE + '.M2Crypto', FakeM2Crypto)
+
+    urllib_intercept.install_opener()
+    add_wsgi_intercept(HOST, 80, lambda: sitekey_frame.sitekey_frame,
+                       script_name=SCRIPT_NAME)
+    try:
+        response = urllib2.urlopen(urllib2.Request(
+            'http://{}/{}'.format(HOST, SCRIPT_NAME),
+            headers={'User-Agent': 'foobar'},
+        ))
+        assert response.code == 200
+        data = eval(response.read())
+        assert base64.b64decode(data['signature']) == TO_SIGN
+        assert data['http_path'] == '/' + SCRIPT_NAME
+        assert data['http_host'] == HOST
+        assert data['http_ua'] == USER_AGENT
+    finally:
+        remove_wsgi_intercept()