move send_test_email to email_utils.

This is a temporary hack because email_client.py view file was
previously named email.py and because of lingering .pyc files, we run
into import problems. I was unable to cleanup .pyc files as part of
initrock or rpm spec file(oh, this only effects production style
deployment not development) so the final approach is to amend the
update_run to remove .pyc files(this will take effect in future) and
move any code that imports email to a directory outside of views
directory. with the update_run change in place, we can remove this
temporary fix in a future update.

src/rockstor/storageadmin/views/email_client.py

@@ -29,12 +29,7 @@
 from tempfile import mkstemp
 from django.conf import settings
 from system.services import systemctl
-import smtplib
-from email.MIMEMultipart import MIMEMultipart
-from email.MIMEBase import MIMEBase
-from email.MIMEText import MIMEText
-from email.Utils import formatdate
-from email import Encoders
+from system.email_util import send_test_email
 import logging
 logger = logging.getLogger(__name__)
 
@@ -90,19 +85,6 @@ def update_postfix(smtp_server, revert=False):
     os.chmod(MAIN_CF, 0644)
 
 
-def send_test_email(eco, subject):
-    msg = MIMEMultipart()
-    msg['From'] = eco.sender
-    msg['To'] = eco.receiver
-    msg['Date'] = formatdate(localtime=True)
-    msg['Subject'] = subject
-
-    msg.attach(MIMEText(subject))
-    smtp = smtplib.SMTP('localhost')
-    smtp.sendmail(eco.sender, eco.receiver, msg.as_string())
-    smtp.close()
-
-
 class EmailClientView(rfc.GenericView):
     serializer_class = EmailClientSerializer
 

src/rockstor/system/email_util.py

@@ -0,0 +1,38 @@
+"""
+Copyright (c) 2012-2015 RockStor, Inc. <http://rockstor.com>
+This file is part of RockStor.
+
+RockStor 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 2 of the License,
+or (at your option) any later version.
+
+RockStor 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/>.
+"""
+
+#to be moved to views/email_client.py after an update or so.
+
+import smtplib
+from email.MIMEMultipart import MIMEMultipart
+from email.MIMEBase import MIMEBase
+from email.MIMEText import MIMEText
+from email.Utils import formatdate
+from email import Encoders
+
+def send_test_email(eco, subject):
+    msg = MIMEMultipart()
+    msg['From'] = eco.sender
+    msg['To'] = eco.receiver
+    msg['Date'] = formatdate(localtime=True)
+    msg['Subject'] = subject
+
+    msg.attach(MIMEText(subject))
+    smtp = smtplib.SMTP('localhost')
+    smtp.sendmail(eco.sender, eco.receiver, msg.as_string())
+    smtp.close()