add gcp api key analyzer (#150)

* add gcp api key analyzer

* add gcp api key analyzer

pastepwn/analyzers/__init__.py

@@ -15,6 +15,7 @@
 from .emailpasswordpairanalyzer import EmailPasswordPairAnalyzer
 from .facebookaccesstokenanalyzer import FacebookAccessTokenAnalyzer
 from .genericanalyzer import GenericAnalyzer
+from .googleapikeyanalyzer import GoogleApiKeyAnalyzer
 from .googleoauthkeyanalyzer import GoogleOAuthKeyAnalyzer
 from .ibananalyzer import IBANAnalyzer
 from .logicalanalyzers import AndAnalyzer
@@ -57,6 +58,7 @@
     'EmailPasswordPairAnalyzer',
     'FacebookAccessTokenAnalyzer',
     'GenericAnalyzer',
+    'GoogleApiKeyAnalyzer',
     'GoogleOAuthKeyAnalyzer',
     'IBANAnalyzer',
     'LogicalBaseAnalyzer',

pastepwn/analyzers/googleapikeyanalyzer.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+from .regexanalyzer import RegexAnalyzer
+
+
+class GoogleApiKeyAnalyzer(RegexAnalyzer):
+
+    def __init__(self, actions):
+        # https://cloud.google.com/docs/authentication/api-keys
+        regex = r"\bAIza[0-9A-Za-z_-]{35}\b"
+        super().__init__(actions, regex)

pastepwn/analyzers/tests/googleapikeyanalyzer_test.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+import unittest
+from unittest import mock
+
+from pastepwn.analyzers.googleapikeyanalyzer import GoogleApiKeyAnalyzer
+
+
+class TestGoogleApiKeyAnalyzer(unittest.TestCase):
+
+    def setUp(self):
+        self.analyzer = GoogleApiKeyAnalyzer(None)
+        self.paste = mock.Mock()
+
+    def test_match_positive(self):
+        """Test if positives are recognized"""
+        # google key dump
+        self.paste.body = "AIzaSyCTmst6SvsOAQanZKNt-2pt6nuLoFf2kSA"
+        self.assertTrue(self.analyzer.match(self.paste))
+
+        # google key dump
+        self.paste.body = "AIzaSyBKNst9JE89f4lHuNXQFTUgZKh8VZpvR6M"
+        self.assertTrue(self.analyzer.match(self.paste))
+
+        # google key dump
+        self.paste.body = "AIzammmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm"
+        self.assertTrue(self.analyzer.match(self.paste))
+
+        # google key dump
+        self.paste.body = "AIza00000000000000000000000000000000000"
+        self.assertTrue(self.analyzer.match(self.paste))
+
+        # key in the middle of a string
+        self.paste.body = "api key: AIza00000000000000000000000000000000000"
+        self.assertTrue(self.analyzer.match(self.paste))
+
+    def test_match_negative(self):
+        """Test if negatives are not recognized"""
+        self.paste.body = ""
+        self.assertFalse(self.analyzer.match(self.paste))
+
+        self.paste.body = None
+        self.assertFalse(self.analyzer.match(self.paste))
+
+        # Invalid start
+        self.paste.body = "aiza00000000000000000000000000000000000"
+        self.assertFalse(self.analyzer.match(self.paste))
+
+        # Invalid start
+        self.paste.body = "000000000000000000000000000000000000000"
+        self.assertFalse(self.analyzer.match(self.paste))
+
+        # Invalid length
+        self.paste.body = "AIzammmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm"
+        self.assertFalse(self.analyzer.match(self.paste))
+
+        # Invalid length
+        self.paste.body = "AIzammmmmmmmm"
+        self.assertFalse(self.analyzer.match(self.paste))
+
+if __name__ == '__main__':
+    unittest.main()