Merge the I-D notification work from my sprint branch.

 - Legacy-Id: 2112

Author: fenner

changelog

@@ -1,3 +1,11 @@
+ietfdb (2.46)
+
+  From Robert:
+
+  * Add the I-D expiration notification script.
+
+ -- Bill Fenner <fenner@fenron.net>  20 Mar 2010 12:59:50 -0800
+
 ietfdb (2.45)
 
   From Pasi:

ietf/bin/notify-expirations

@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+
+import datetime
+
+from ietf import settings
+from django.core import management
+management.setup_environ(settings)
+
+from ietf.idtracker.models import InternetDraft,IDAuthor,WGChair
+from ietf.utils.mail import send_mail_subj
+
+notify_days = 14        # notify about documents that expire within the
+                        # next 2 weeks
+
+start_date = datetime.date.today() - datetime.timedelta(InternetDraft.DAYS_TO_EXPIRE - 1)
+end_date = start_date + datetime.timedelta(notify_days - 1)
+
+
+matches = InternetDraft.objects.filter(revision_date__gte=start_date,revision_date__lte=end_date,status__status='Active')
+
+#For development - focus on one draft
+#matches = InternetDraft.objects.filter(filename__icontains='geopriv-http-location-delivery')
+
+# Todo:
+#second_cutoff = IDDates.objects.get(date_id=2)
+#ietf_monday = IDDates.objects.get(date_id=3)
+#freeze_delta = ietf_monday - second_cutoff
+
+for draft in matches:
+    if not draft.can_expire():
+        # debugging
+        #print "%s can't expire, skipping" % draft
+        continue
+    expiration = draft.expiration()
+#   # The I-D expiration job doesn't run while submissions are frozen.
+#   if ietf_monday > expiration > second_cutoff:
+#       expiration += freeze_delta
+    authors = draft.authors.all()
+    to_addrs = [author.email() for author in authors if author.email()]
+    cc_addrs = None
+    if draft.group.acronym != 'none':
+        cc_addrs = [chair.person.email() for chair in WGChair.objects.filter(group_acronym=draft.group)]
+
+    #For development debugging
+    """
+    print "filename: "+draft.filename
+    print "to: ", to_addrs
+    print "cc: ", cc_addrs
+    print "expires: ", expiration
+    print "status: ", draft.status.status, "/", draft.idstate()
+    print
+    continue
+    """
+
+    send_mail_subj(None, to_addrs, None, 'notify_expirations/subject.txt', 'notify_expirations/body.txt', 
+                   {
+                      'draft':draft,
+                      'expiration':expiration,
+                   },
+                   cc_addrs)

ietf/templates/notify_expirations/body.txt

@@ -0,0 +1,6 @@
+The following draft will expire soon:
+
+Filename: {{draft.filename}}
+Title:    {{draft.title}}
+State:    {{draft.idstate}}
+Expires:  {{expiration}} (in {{expiration|timeuntil}})

ietf/templates/notify_expirations/subject.txt

@@ -0,0 +1 @@
+Expiration impending: {{draft.filename}} 

ietf/utils/mail.py

@@ -8,7 +8,7 @@
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.template.loader import render_to_string
-from django.template import RequestContext
+from django.template import Context,RequestContext
 from ietf.utils import log
 import sys
 import time
@@ -95,12 +95,18 @@ def copy_email(msg, to, toUser=False):
     new['To'] = to
     send_smtp(new)
 
+def mail_context(request):
+    if request:
+        return RequestContext(request)
+    else:
+        return Context()
+  
 def send_mail_subj(request, to, frm, stemplate, template, context, *args, **kwargs):
     '''
     Send an email message, exactly as send_mail(), but the
     subject field is a template.
     '''
-    subject = render_to_string(stemplate, context, context_instance=RequestContext(request)).replace("\n"," ").strip()
+    subject = render_to_string(stemplate, context, context_instance=mail_context(request)).replace("\n"," ").strip()
     return send_mail(request, to, frm, subject, template, context, *args, **kwargs)
 
 def send_mail(request, to, frm, subject, template, context, *args, **kwargs):
@@ -110,7 +116,7 @@ def send_mail(request, to, frm, subject, template, context, *args, **kwargs):
     The body is a text/plain rendering of the template with the context.
     extra is a dict of extra headers to add.
     '''
-    txt = render_to_string(template, context, context_instance=RequestContext(request))
+    txt = render_to_string(template, context, context_instance=mail_context(request))
     return send_mail_text(request, to, frm, subject, txt, *args, **kwargs)
 
 def send_mail_text(request, to, frm, subject, txt, cc=None, extra=None, toUser=None, bcc=None):