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Send_Delete_Mail.py
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Fri, Nov 1, 13:56

Send_Delete_Mail.py
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## $Id$
## This file is part of CDS Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## CDS Invenio 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.
##
## CDS Invenio 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 CDS Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""The function in this module sends a mail to the user (and admins if
required) saying that a record has been deleted from the repository.
"""
__revision__ = "$Id$"
import os
from invenio.errorlib import register_exception
from invenio.webuser import email_valid_p
from invenio.config import CFG_SITE_SUPPORT_EMAIL, CFG_SITE_NAME
from invenio.websubmit_config import CFG_WEBSUBMIT_COPY_MAILS_TO_ADMIN
from invenio.mailutils import send_email
CFG_MAIL_BODY = """
**This is an automated mail from %(site-name)s**
The following record was deleted from %(site-name)s:
Report number: %(report-number)s
It was deleted by %(deleter)s.
Please note that there may be a short delay before the record
disappears from its collection. It should be gone by tomorrow morning
at the latest.
Thankyou."""
def Send_Delete_Mail(parameters, curdir, form, user_info=None):
"""In the event of a record having been deleted, this function is used
to the mail the submitter (and possibly the record "managers")
informing them about the record's deletion.
@parameters:
+ edsrn: The name of the file in the current submission's
working directory, in which the record's report number
is stored.
+ record_managers: A comma-separated string of the email
addresses of the record's managers. If given,
they will be (blind*) copied into the mail.
* At this time, they are only blind copied
because of send_email's behaviour of
blind copying everyone if "To" contains
multiple addresses. Anyway, blind was
wanted . . .
@return: empty string.
@Exceptions raised: None.
"""
## Get any addresses to which the mail should be copied:
## Get report number:
report_number_file = parameters["edsrn"]
report_number = \
Send_Delete_Mail_read_file("%s/%s" % \
(curdir, \
report_number_file)).strip()
########
## Get the "record_managers" parameter AND WASH THE EMAIL ADDRESSES
## TO BE SURE THAT THEY'RE VALID:
raw_record_managers = parameters["record_managers"]
record_managers = ""
try:
## We assume that the email addresses of item managers are
## separated by commas.
raw_record_managers_list = raw_record_managers.split(",")
for manager in raw_record_managers_list:
manager_address = manager.strip()
## Test that this manager's email address is OK, adding it if so:
if email_valid_p(manager_address):
## This address is OK - add it to the string of manager
## addresses:
record_managers += "%s," % manager_address
## Strip the trailing comma from record_managers (if there is one):
record_managers = record_managers.strip().rstrip(",")
except AttributeError:
## record_managers doesn't seem to be a string? Treat it as
## though it were empty:
record_managers = ""
##
########
## User email address:
user_email = user_info["email"]
## Concatenate the user's email address with the managers' addresses.
## Note: What we want to do here is send the mail to the user as "To"
## and to the managers as "bcc". At the time of writing though,
## send_email doesn't appear to allow email headers. It does have a
## strange behaviour though: If "To" contains more than one address,
## comma separated, ALL addresses will be put in "bcc" and the mail
## will appear to be sent to "undisclosed recipients".
if record_managers != "":
if user_email != "guest":
email_recipients = "%s,%s" % (user_email, record_managers)
else:
## Can't send mails to "guest"! Send only to managers.
email_recipients = record_managers
elif user_email == "guest":
## The user is a guest and there are no managers to send the mail
## to. Drop out quietly.
return ""
else:
## No managers to send the mail to. Send it only to the user.
email_recipients = user_email
mail_subj = "Document %s deleted from %s" \
% (report_number, CFG_SITE_NAME)
mail_body = CFG_MAIL_BODY % \
{ 'report-number' : report_number,
'deleter' : user_email,
'site-name' : CFG_SITE_NAME,
}
send_email(CFG_SITE_SUPPORT_EMAIL,
email_recipients,
mail_subj,
mail_body,
copy_to_admin=CFG_WEBSUBMIT_COPY_MAILS_TO_ADMIN)
##
return ""
def Send_Delete_Mail_read_file(filename):
"""Read a file from a path and return it as a string.
@param filename: (string) - the full path to the file to be read.
@return: (string) - the file's contents.
"""
file_contents = ""
if os.access("%s" % filename, os.R_OK):
try:
file_contents = open("%s" % filename, "r").read()
except IOError:
## There was a problem reading the file. Register the exception
## so that the admin is informed.
err_msg = """Error in a WebSubmit function. An unexpected """ \
"""error was encountered when trying to read from """ \
"""the file [%S].""" % filename
register_exception(prefix=err_msg)
return file_contents

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