Add pyjwt 1.4.0

lib/jwt/compat.py

@@ -0,0 +1,52 @@
+"""
+The `compat` module provides support for backwards compatibility with older
+versions of python, and compatibility wrappers around optional packages.
+"""
+# flake8: noqa
+import sys
+import hmac
+
+
+PY3 = sys.version_info[0] == 3
+
+
+if PY3:
+    string_types = str,
+    text_type = str
+else:
+    string_types = basestring,
+    text_type = unicode
+
+
+def timedelta_total_seconds(delta):
+    try:
+        delta.total_seconds
+    except AttributeError:
+        # On Python 2.6, timedelta instances do not have
+        # a .total_seconds() method.
+        total_seconds = delta.days * 24 * 60 * 60 + delta.seconds
+    else:
+        total_seconds = delta.total_seconds()
+
+    return total_seconds
+
+
+try:
+    constant_time_compare = hmac.compare_digest
+except AttributeError:
+    # Fallback for Python < 2.7
+    def constant_time_compare(val1, val2):
+        """
+        Returns True if the two strings are equal, False otherwise.
+
+        The time taken is independent of the number of characters that match.
+        """
+        if len(val1) != len(val2):
+            return False
+
+        result = 0
+
+        for x, y in zip(val1, val2):
+            result |= ord(x) ^ ord(y)
+
+        return result == 0