From 6c0541c3b8827eb9a5be9ae46d58925b399afc09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1s=20Touceda?= <chiiph@leap.se>
Date: Thu, 31 Oct 2013 10:17:03 -0300
Subject: Move get_email_charset to this module
---
src/leap/common/mail.py | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 src/leap/common/mail.py
(limited to 'src')
diff --git a/src/leap/common/mail.py b/src/leap/common/mail.py
new file mode 100644
index 0000000..2f2146d
--- /dev/null
+++ b/src/leap/common/mail.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+# mail.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+"""
+Utility functions for email.
+"""
+import email
+import re
+
+from leap.common.check import leap_assert_type
+
+
+def get_email_charset(content, default="utf-8"):
+ """
+ Mini parser to retrieve the charset of an email.
+
+ :param content: mail contents
+ :type content: unicode
+ :param default: optional default value for encoding
+ :type default: str or None
+
+ :returns: the charset as parsed from the contents
+ :rtype: str
+ """
+ leap_assert_type(content, unicode)
+
+ charset = default
+ try:
+ em = email.message_from_string(content.encode("utf-8", "replace"))
+ # Miniparser for: Content-Type: <something>; charset=<charset>
+ charset_re = r'''charset=(?P<charset>[\w|\d|-]*)'''
+ charset = re.findall(charset_re, em["Content-Type"])[0]
+ if charset is None or len(charset) == 0:
+ charset = default
+ except Exception:
+ pass
+ return charset
--
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