git subrepo commit (merge) mailcow/src/mailcow-dockerized

subrepo: subdir:   "mailcow/src/mailcow-dockerized"
  merged:   "02ae5285"
upstream: origin:   "https://github.com/mailcow/mailcow-dockerized.git"
  branch:   "master"
  commit:   "649a5c01"
git-subrepo: version:  "0.4.3"
  origin:   "???"
  commit:   "???"
Change-Id: I870ad468fba026cc5abf3c5699ed1e12ff28b32b
diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/dovecot/quarantine_notify.py b/mailcow/src/mailcow-dockerized/data/Dockerfiles/dovecot/quarantine_notify.py
index adf3171..acd887a 100755
--- a/mailcow/src/mailcow-dockerized/data/Dockerfiles/dovecot/quarantine_notify.py
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/dovecot/quarantine_notify.py
@@ -2,6 +2,7 @@
 
 import smtplib
 import os
+import sys
 import mysql.connector
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
@@ -15,137 +16,154 @@
 import html2text
 import socket
 
-while True:
-  try:
-    r = redis.StrictRedis(host='redis', decode_responses=True, port=6379, db=0)
-    r.ping()
-  except Exception as ex:
-    print('%s - trying again...'  % (ex))
-    time.sleep(3)
-  else:
-    break
+pid = str(os.getpid())
+pidfile = "/tmp/quarantine_notify.pid"
 
-time_now = int(time.time())
-mailcow_hostname = '__MAILCOW_HOSTNAME__'
+if os.path.isfile(pidfile):
+  print("%s already exists, exiting" % (pidfile))
+  sys.exit()
 
-max_score = float(r.get('Q_MAX_SCORE') or "9999.0")
-if max_score == "":
-  max_score = 9999.0
+pid = str(os.getpid())
+f = open(pidfile, 'w')
+f.write(pid)
+f.close()
 
-def query_mysql(query, headers = True, update = False):
+try:
+
   while True:
     try:
-      cnx = mysql.connector.connect(unix_socket = '/var/run/mysqld/mysqld.sock', user='__DBUSER__', passwd='__DBPASS__', database='__DBNAME__', charset="utf8")
+      r = redis.StrictRedis(host='redis', decode_responses=True, port=6379, db=0)
+      r.ping()
     except Exception as ex:
       print('%s - trying again...'  % (ex))
       time.sleep(3)
     else:
       break
-  cur = cnx.cursor()
-  cur.execute(query)
-  if not update:
-    result = []
-    columns = tuple( [d[0] for d in cur.description] )
-    for row in cur:
-      if headers:
-        result.append(dict(list(zip(columns, row))))
-      else:
-        result.append(row)
-    cur.close()
-    cnx.close()
-    return result
-  else:
-    cnx.commit()
-    cur.close()
-    cnx.close()
 
-def notify_rcpt(rcpt, msg_count, quarantine_acl, category):
-  if category == "add_header": category = "add header"
-  meta_query = query_mysql('SELECT SHA2(CONCAT(id, qid), 256) AS qhash, id, subject, score, sender, created, action FROM quarantine WHERE notified = 0 AND rcpt = "%s" AND score < %f AND (action = "%s" OR "all" = "%s")' % (rcpt, max_score, category, category))
-  print("%s: %d of %d messages qualify for notification" % (rcpt, len(meta_query), msg_count))
-  if len(meta_query) == 0:
-    return
-  msg_count = len(meta_query)
-  if r.get('Q_HTML'):
-    try:
-      template = Template(r.get('Q_HTML'))
-    except:
-      print("Error: Cannot parse quarantine template, falling back to default template.")
+  time_now = int(time.time())
+  mailcow_hostname = os.environ.get('MAILCOW_HOSTNAME')
+
+  max_score = float(r.get('Q_MAX_SCORE') or "9999.0")
+  if max_score == "":
+    max_score = 9999.0
+
+  def query_mysql(query, headers = True, update = False):
+    while True:
+      try:
+        cnx = mysql.connector.connect(unix_socket = '/var/run/mysqld/mysqld.sock', user=os.environ.get('DBUSER'), passwd=os.environ.get('DBPASS'), database=os.environ.get('DBNAME'), charset="utf8")
+      except Exception as ex:
+        print('%s - trying again...'  % (ex))
+        time.sleep(3)
+      else:
+        break
+    cur = cnx.cursor()
+    cur.execute(query)
+    if not update:
+      result = []
+      columns = tuple( [d[0] for d in cur.description] )
+      for row in cur:
+        if headers:
+          result.append(dict(list(zip(columns, row))))
+        else:
+          result.append(row)
+      cur.close()
+      cnx.close()
+      return result
+    else:
+      cnx.commit()
+      cur.close()
+      cnx.close()
+
+  def notify_rcpt(rcpt, msg_count, quarantine_acl, category):
+    if category == "add_header": category = "add header"
+    meta_query = query_mysql('SELECT SHA2(CONCAT(id, qid), 256) AS qhash, id, subject, score, sender, created, action FROM quarantine WHERE notified = 0 AND rcpt = "%s" AND score < %f AND (action = "%s" OR "all" = "%s")' % (rcpt, max_score, category, category))
+    print("%s: %d of %d messages qualify for notification" % (rcpt, len(meta_query), msg_count))
+    if len(meta_query) == 0:
+      return
+    msg_count = len(meta_query)
+    if r.get('Q_HTML'):
+      try:
+        template = Template(r.get('Q_HTML'))
+      except:
+        print("Error: Cannot parse quarantine template, falling back to default template.")
+        with open('/templates/quarantine.tpl') as file_:
+          template = Template(file_.read())
+    else:
       with open('/templates/quarantine.tpl') as file_:
         template = Template(file_.read())
-  else:
-    with open('/templates/quarantine.tpl') as file_:
-      template = Template(file_.read())
-  html = template.render(meta=meta_query, username=rcpt, counter=msg_count, hostname=mailcow_hostname, quarantine_acl=quarantine_acl)
-  text = html2text.html2text(html)
-  count = 0
-  while count < 15:
-    count += 1
+    html = template.render(meta=meta_query, username=rcpt, counter=msg_count, hostname=mailcow_hostname, quarantine_acl=quarantine_acl)
+    text = html2text.html2text(html)
+    count = 0
+    while count < 15:
+      count += 1
+      try:
+        server = smtplib.SMTP('postfix', 590, 'quarantine')
+        server.ehlo()
+        msg = MIMEMultipart('alternative')
+        msg_from = r.get('Q_SENDER') or "quarantine@localhost"
+        # Remove non-ascii chars from field
+        msg['From'] = ''.join([i if ord(i) < 128 else '' for i in msg_from])
+        msg['Subject'] = r.get('Q_SUBJ') or "Spam Quarantine Notification"
+        msg['Date'] = formatdate(localtime = True)
+        text_part = MIMEText(text, 'plain', 'utf-8')
+        html_part = MIMEText(html, 'html', 'utf-8')
+        msg.attach(text_part)
+        msg.attach(html_part)
+        msg['To'] = str(rcpt)
+        bcc = r.get('Q_BCC') or ""
+        redirect = r.get('Q_REDIRECT') or ""
+        text = msg.as_string()
+        if bcc == '':
+          if redirect == '':
+            server.sendmail(msg['From'], str(rcpt), text)
+          else:
+            server.sendmail(msg['From'], str(redirect), text)
+        else:
+          if redirect == '':
+            server.sendmail(msg['From'], [str(rcpt)] + [str(bcc)], text)
+          else:
+            server.sendmail(msg['From'], [str(redirect)] + [str(bcc)], text)
+        server.quit()
+        for res in meta_query:
+         query_mysql('UPDATE quarantine SET notified = 1 WHERE id = "%d"' % (res['id']), update = True)
+        r.hset('Q_LAST_NOTIFIED', record['rcpt'], time_now)
+        break
+      except Exception as ex:
+        server.quit()
+        print('%s'  % (ex))
+        time.sleep(3)
+
+  records = query_mysql('SELECT IFNULL(user_acl.quarantine, 0) AS quarantine_acl, count(id) AS counter, rcpt FROM quarantine LEFT OUTER JOIN user_acl ON user_acl.username = rcpt WHERE notified = 0 AND score < %f AND rcpt in (SELECT username FROM mailbox) GROUP BY rcpt' % (max_score))
+
+  for record in records:
+    attrs = ''
+    attrs_json = ''
+    time_trans = {
+      "hourly": 3600,
+      "daily": 86400,
+      "weekly": 604800
+    }
     try:
-      server = smtplib.SMTP('postfix', 590, 'quarantine')
-      server.ehlo()
-      msg = MIMEMultipart('alternative')
-      msg_from = r.get('Q_SENDER') or "quarantine@localhost"
-      # Remove non-ascii chars from field
-      msg['From'] = ''.join([i if ord(i) < 128 else '' for i in msg_from])
-      msg['Subject'] = r.get('Q_SUBJ') or "Spam Quarantine Notification"
-      msg['Date'] = formatdate(localtime = True)
-      text_part = MIMEText(text, 'plain', 'utf-8')
-      html_part = MIMEText(html, 'html', 'utf-8')
-      msg.attach(text_part)
-      msg.attach(html_part)
-      msg['To'] = str(rcpt)
-      bcc = r.get('Q_BCC') or ""
-      redirect = r.get('Q_REDIRECT') or ""
-      text = msg.as_string()
-      if bcc == '':
-        if redirect == '':
-          server.sendmail(msg['From'], str(rcpt), text)
-        else:
-          server.sendmail(msg['From'], str(redirect), text)
-      else:
-        if redirect == '':
-          server.sendmail(msg['From'], [str(rcpt)] + [str(bcc)], text)
-        else:
-          server.sendmail(msg['From'], [str(redirect)] + [str(bcc)], text)
-      server.quit()
-      for res in meta_query:
-       query_mysql('UPDATE quarantine SET notified = 1 WHERE id = "%d"' % (res['id']), update = True)
-      r.hset('Q_LAST_NOTIFIED', record['rcpt'], time_now)
-      break
+      last_notification = int(r.hget('Q_LAST_NOTIFIED', record['rcpt']))
+      if last_notification > time_now:
+        print('Last notification is > time now, assuming never')
+        last_notification = 0
     except Exception as ex:
-      server.quit()
-      print('%s'  % (ex))
-      time.sleep(3)
-
-records = query_mysql('SELECT IFNULL(user_acl.quarantine, 0) AS quarantine_acl, count(id) AS counter, rcpt FROM quarantine LEFT OUTER JOIN user_acl ON user_acl.username = rcpt WHERE notified = 0 AND score < %f AND rcpt in (SELECT username FROM mailbox) GROUP BY rcpt' % (max_score))
-
-for record in records:
-  attrs = ''
-  attrs_json = ''
-  time_trans = {
-    "hourly": 3600,
-    "daily": 86400,
-    "weekly": 604800
-  }
-  try:
-    last_notification = int(r.hget('Q_LAST_NOTIFIED', record['rcpt']))
-    if last_notification > time_now:
-      print('Last notification is > time now, assuming never')
+      print('Could not determine last notification for %s, assuming never' % (record['rcpt']))
       last_notification = 0
-  except Exception as ex:
-    print('Could not determine last notification for %s, assuming never' % (record['rcpt']))
-    last_notification = 0
-  attrs_json = query_mysql('SELECT attributes FROM mailbox WHERE username = "%s"' % (record['rcpt']))
-  attrs = attrs_json[0]['attributes']
-  if isinstance(attrs, str):
-    # if attr is str then just load it
-    attrs = json.loads(attrs)
-  else:
-    # if it's bytes then decode and load it
-    attrs = json.loads(attrs.decode('utf-8'))
-  if attrs['quarantine_notification'] not in ('hourly', 'daily', 'weekly'):
-    continue
-  if last_notification == 0 or (last_notification + time_trans[attrs['quarantine_notification']]) < time_now:
-    print("Notifying %s: Considering %d new items in quarantine (policy: %s)" % (record['rcpt'], record['counter'], attrs['quarantine_notification']))
-    notify_rcpt(record['rcpt'], record['counter'], record['quarantine_acl'], attrs['quarantine_category'])
+    attrs_json = query_mysql('SELECT attributes FROM mailbox WHERE username = "%s"' % (record['rcpt']))
+    attrs = attrs_json[0]['attributes']
+    if isinstance(attrs, str):
+      # if attr is str then just load it
+      attrs = json.loads(attrs)
+    else:
+      # if it's bytes then decode and load it
+      attrs = json.loads(attrs.decode('utf-8'))
+    if attrs['quarantine_notification'] not in ('hourly', 'daily', 'weekly'):
+      continue
+    if last_notification == 0 or (last_notification + time_trans[attrs['quarantine_notification']]) < time_now:
+      print("Notifying %s: Considering %d new items in quarantine (policy: %s)" % (record['rcpt'], record['counter'], attrs['quarantine_notification']))
+      notify_rcpt(record['rcpt'], record['counter'], record['quarantine_acl'], attrs['quarantine_category'])
+
+finally:
+  os.unlink(pidfile)
\ No newline at end of file