[add] send mail via python, using as an alert method

alert/sendmail.py

@@ -0,0 +1,58 @@
+#!/usr/bin/python3
+
+from email.mime.text import MIMEText
+from email.mime.image import MIMEImage
+from email.mime.multipart import MIMEMultipart
+import smtplib
+import sys
+
+# Mail basic information
+mail_host = "smtp.163.com"
+from_mail = 'xgdfmf@163.com'
+from_mail_password = 'SATTGHVFIJEGZMFP'
+receiver_to = ['mffan0922@163.com']
+receiver_cc = []
+to_mail = receiver_to + receiver_cc
+
+
+# MIMEMultipart: mixed/alternative/related
+# （1）mixed: default option, especially situation with mail attachments must use this one
+# （2）alternative: with both plain text and hyper text in mail content, using this one
+# （3）related：sending content of html format, probably using picture as the background of mail
+# content, then html text will be stored in alternative segment, whereas the background picture
+# will be stored in multipart/related segment
+
+# Mail content
+msg = MIMEMultipart()
+msg['From'] = from_mail
+msg['To'] = ";".join(to_mail)
+msg['Subject'] = sys.argv[1]
+txt = sys.argv[2]
+body = MIMEText(txt, 'plain', 'utf-8')
+msg.attach(body)
+
+
+# Mail attachment
+if len(sys.argv) > 3:
+    for attachment in sys.argv[3:]:
+        filename = attachment.split('/')[-1]
+        attach_file = open(attachment, 'r').read()
+        attach = MIMEText(str(attach_file), 'base64', 'utf-8')
+        attach["Content-Type"] = 'application/octet-stream'
+        attach.add_header('Content-Disposition', 'attachment', filename=filename)
+        msg.attach(attach)
+
+
+try:
+    server = smtplib.SMTP(mail_host)
+    server.docmd('helo', from_mail)
+    server.starttls()
+    server.login(from_mail, from_mail_password)
+
+    server.sendmail(from_mail, to_mail, msg.as_string())
+    server.quit()
+    print('sendemail successful!')
+except Exception as err:
+    print('Sending email failed, the reason is as below:')
+    print(err)
+