add email sending script
refs: #4053
Change-Id: I1ffe550b20e7fe394fb7f25d71eafa61d4a8fc6f
diff --git a/ndncert-send-email-challenge.py b/ndncert-send-email-challenge.py
new file mode 100755
index 0000000..1916791
--- /dev/null
+++ b/ndncert-send-email-challenge.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+import sys
+import smtplib
+import argparse
+import socket
+from ConfigParser import SafeConfigParser
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+socket.setdefaulttimeout(10)
+
+# init arg parser and parse
+parser = argparse.ArgumentParser(description='Email-challenge-sender for NDNCERT')
+parser.add_argument("email", help="the receiver email address")
+parser.add_argument("secret", help="the secret of the challenge")
+parser.add_argument("caName", help="the CA name")
+args = parser.parse_args()
+
+# open config
+confParser = SafeConfigParser()
+confParser.read('@SYSCONFDIR@/ndncert/ndncert-mail.conf')
+
+# read smtp settings
+encrypt_mode = confParser.get('ndncert_smtp_settings', "ENCRYPT_MODE")
+server = confParser.get('ndncert_smtp_settings', 'SMTP_SERVER')
+port = confParser.get('ndncert_smtp_settings', 'SMTP_PORT')
+username = confParser.get('ndncert_smtp_settings', 'SMTP_USER')
+password = confParser.get('ndncert_smtp_settings', 'SMTP_PASSWORD')
+
+# read email settings
+msg_from = confParser.get('ndncert_email_settings', 'MAIL_FROM')
+subject = confParser.get('ndncert_email_settings', 'SUBJECT')
+text = confParser.get('ndncert_email_settings', 'TEXT_TEMPLATE').format(args.secret, args.caName)
+html = confParser.get('ndncert_email_settings', 'HTML_TEMPLATE').format(args.secret, args.caName)
+
+# form email message
+msg = MIMEMultipart('alternative')
+msg.attach(MIMEText(text, 'plain'))
+msg.attach(MIMEText(html, 'html'))
+msg['From'] = msg_from
+msg['To'] = args.email
+msg['Subject'] = subject
+
+# send email
+if encrypt_mode == 'ssl':
+ smtp_server = smtplib.SMTP_SSL(server, port)
+else: # none or tls
+ smtp_server = smtplib.SMTP(server, port)
+
+if encrypt_mode != 'none':
+ smtp_server.ehlo()
+ if encrypt_mode == 'tls':
+ smtp_server.starttls()
+
+if username != '' and password != '':
+ smtp_server.login(username, password)
+
+smtp_server.sendmail(msg_from, args.email, msg.as_string())
+smtp_server.close()
+sys.exit()