Add command to send arbitrary emails

ssmain/email.py

@@ -56,7 +56,7 @@ class Emailer:
 			with tempfile.NamedTemporaryFile(mode='w', encoding='utf-8', suffix='.eml') as f:
 				print('Subject:' + subject + '\nContent-Type: multipart/alternative; boundary=boundary\n\n--boundary\nContent-Type: text/html; charset=utf-8\n\n' + content_html + '\n--boundary\nContent-Type: text/plain; charset=utf-8\n\n' + content_txt + '\n--boundary', file=f)
 				subprocess.run(['thunderbird', f.name])
-				time.sleep(0.5)
+				time.sleep(5)
 		else:
 			self.boto3_send(
 				Destination={

ssmembership/management/commands/sendmdemail.py

@@ -0,0 +1,41 @@
+#    Society Self-Service
+#    Copyright © 2018-2019  Yingtong Li (RunasSudo)
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program 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 Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+from django.core.management.base import BaseCommand, CommandError
+
+from ssmain.email import Emailer
+import ssmembership.models
+
+class Command(BaseCommand):
+	help = 'Send Markdown emails'
+	
+	def add_arguments(self, parser):
+		parser.add_argument('template', help='Template name')
+		parser.add_argument('subject', help='Email subject')
+		parser.add_argument('ids', nargs='*', type=int, help='Members with ID numbers equal to these values will be emailed (default all)')
+	
+	def handle(self, *args, **options):
+		members = ssmembership.models.Member.objects.all()
+		
+		if len(options['ids']) > 0:
+			members = [member for member in members if member.id in options['ids']]
+		else:
+			raise Exception('Must provide IDs')
+		
+		emailer = Emailer()
+		for member in members:
+			self.stdout.write('Emailing {} at {}'.format(member.id, member.email))
+			emailer.send_mail([member.email], options['subject'], 'ssmembership/email/' + options['template'] + '.md', {})