Mercurial > kallithea

annotate pylons_app/lib/smtp_mailer.py @ 492:a5a17000e45b celery

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timeproxy logging memory leak fix.
author Marcin Kuzminski <marcin@python-works.com>
date Tue, 21 Sep 2010 15:36:46 +0200
parents a3d9d24acbec
children
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474
a3d9d24acbec Implemented password reset(forms/models/ tasks) and mailing tasks.
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1 import logging
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2 import smtplib
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3 import mimetypes
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4 from email.mime.multipart import MIMEMultipart
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5 from email.mime.image import MIMEImage
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6 from email.mime.audio import MIMEAudio
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7 from email.mime.base import MIMEBase
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8 from email.mime.text import MIMEText
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9 from email.utils import formatdate
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10 from email import encoders
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11
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12 class SmtpMailer(object):
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13 """simple smtp mailer class
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14
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15 mailer = SmtpMailer(mail_from, user, passwd, mail_server, mail_port, ssl, tls)
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16 mailer.send(recipients, subject, body, attachment_files)
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17
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18 :param recipients might be a list of string or single string
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19 :param attachment_files is a dict of {filename:location}
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20 it tries to guess the mimetype and attach the file
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21 """
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22
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23 def __init__(self, mail_from, user, passwd, mail_server,
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24 mail_port=None, ssl=False, tls=False):
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25
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26 self.mail_from = mail_from
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27 self.mail_server = mail_server
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28 self.mail_port = mail_port
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29 self.user = user
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30 self.passwd = passwd
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31 self.ssl = ssl
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32 self.tls = tls
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33 self.debug = False
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34
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35 def send(self, recipients=[], subject='', body='', attachment_files={}):
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36
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37 if isinstance(recipients, basestring):
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38 recipients = [recipients]
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39 if self.ssl:
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40 smtp_serv = smtplib.SMTP_SSL(self.mail_server, self.mail_port)
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41 else:
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42 smtp_serv = smtplib.SMTP(self.mail_server, self.mail_port)
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43
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44 if self.tls:
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45 smtp_serv.starttls()
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46
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47 if self.debug:
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48 smtp_serv.set_debuglevel(1)
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49
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50 smtp_serv.ehlo("mailer")
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51
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52 #if server requires authorization you must provide login and password
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53 smtp_serv.login(self.user, self.passwd)
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54
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55 date_ = formatdate(localtime=True)
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56 msg = MIMEMultipart()
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57 msg['From'] = self.mail_from
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58 msg['To'] = ','.join(recipients)
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59 msg['Date'] = date_
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60 msg['Subject'] = subject
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61 msg.preamble = 'You will not see this in a MIME-aware mail reader.\n'
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62
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63 msg.attach(MIMEText(body))
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64
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65 if attachment_files:
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66 self.__atach_files(msg, attachment_files)
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67
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68 smtp_serv.sendmail(self.mail_from, recipients, msg.as_string())
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69 logging.info('MAIL SEND TO: %s' % recipients)
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70 smtp_serv.quit()
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71
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72
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73 def __atach_files(self, msg, attachment_files):
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74 if isinstance(attachment_files, dict):
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75 for f_name, msg_file in attachment_files.items():
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76 ctype, encoding = mimetypes.guess_type(f_name)
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77 logging.info("guessing file %s type based on %s" , ctype, f_name)
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78 if ctype is None or encoding is not None:
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79 # No guess could be made, or the file is encoded (compressed), so
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80 # use a generic bag-of-bits type.
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81 ctype = 'application/octet-stream'
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82 maintype, subtype = ctype.split('/', 1)
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83 if maintype == 'text':
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84 # Note: we should handle calculating the charset
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85 file_part = MIMEText(self.get_content(msg_file),
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86 _subtype=subtype)
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87 elif maintype == 'image':
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88 file_part = MIMEImage(self.get_content(msg_file),
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89 _subtype=subtype)
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90 elif maintype == 'audio':
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91 file_part = MIMEAudio(self.get_content(msg_file),
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92 _subtype=subtype)
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93 else:
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94 file_part = MIMEBase(maintype, subtype)
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95 file_part.set_payload(self.get_content(msg_file))
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96 # Encode the payload using Base64
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97 encoders.encode_base64(msg)
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98 # Set the filename parameter
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99 file_part.add_header('Content-Disposition', 'attachment',
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100 filename=f_name)
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101 file_part.add_header('Content-Type', ctype, name=f_name)
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102 msg.attach(file_part)
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103 else:
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104 raise Exception('Attachment files should be'
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105 'a dict in format {"filename":"filepath"}')
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106
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107 def get_content(self, msg_file):
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108 '''
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109 Get content based on type, if content is a string do open first
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110 else just read because it's a probably open file object
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111 @param msg_file:
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112 '''
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113 if isinstance(msg_file, str):
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114 return open(msg_file, "rb").read()
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115 else:
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116 #just for safe seek to 0
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117 msg_file.seek(0)
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118 return msg_file.read()