Implement account update method

Allow syncing of all known accounts from PowerDNS, in the same
way that Domain().update() does for domains.

powerdnsadmin/models/account.py

@@ -1,6 +1,10 @@
+import traceback
 from flask import current_app
+from urllib.parse import urljoin
 
+from ..lib import utils
 from .base import db
+from .setting import Setting
 from .user import User
 from .account_user import AccountUser
 
@@ -20,6 +24,12 @@ def __init__(self, name=None, description=None, contact=None, mail=None):
         self.contact = contact
         self.mail = mail
 
+        # PDNS configs
+        self.PDNS_STATS_URL = Setting().get('pdns_api_url')
+        self.PDNS_API_KEY = Setting().get('pdns_api_key')
+        self.PDNS_VERSION = Setting().get('pdns_version')
+        self.API_EXTENDED_URL = utils.pdns_api_extended_uri(self.PDNS_VERSION)
+
         if self.name is not None:
             self.name = ''.join(c for c in self.name.lower()
                                 if c in "abcdefghijklmnopqrstuvwxyz0123456789")
@@ -200,3 +210,57 @@ def remove_user(self, user):
                 'Cannot revoke user privileges on account {0}. DETAIL: {1}'.
                 format(self.name, e))
             return False
+
+    def update(self):
+        """
+        Fetch accounts from PowerDNS and syncs them into DB
+        """
+        db_accounts = Account.query.all()
+        list_db_accounts = [d.name for d in db_accounts]
+        current_app.logger.info("Found {} accounts in PowerDNS-Admin".format(
+            len(list_db_accounts)))
+        headers = {'X-API-Key': self.PDNS_API_KEY}
+        try:
+            jdata = utils.fetch_json(
+                urljoin(self.PDNS_STATS_URL,
+                        self.API_EXTENDED_URL + '/servers/localhost/zones'),
+                headers=headers,
+                timeout=int(Setting().get('pdns_api_timeout')),
+                verify=Setting().get('verify_ssl_connections'))
+            list_jaccount = set(d['account'] for d in jdata if d['account'])
+
+            try:
+                # Remove accounts that don't exist any more
+                should_removed_db_account = list(
+                    set(list_db_accounts).difference(list_jaccount))
+                for account_name in should_removed_db_account:
+                    account_id = self.get_id_by_name(account_name)
+                    if not account_id:
+                        continue
+                    current_app.logger.info("Deleting account for {0}".format(account_name))
+                    account = Account.query.get(account_id)
+                    db.session.delete(account)
+            except Exception as e:
+                current_app.logger.error(
+                    'Can not delete account from DB. DETAIL: {0}'.format(e))
+                current_app.logger.debug(traceback.format_exc())
+
+            for account_name in list_jaccount:
+                account_id = self.get_id_by_name(account_name)
+                if account_id:
+                    continue
+                current_app.logger.info("Creating account for {0}".format(account_name))
+                account = Account(name=account_name)
+                db.session.add(account)
+
+            db.session.commit()
+            current_app.logger.info('Update accounts finished')
+            return {
+                'status': 'ok',
+                'msg': 'Account table has been updated successfully'
+            }
+        except Exception as e:
+            db.session.rollback()
+            current_app.logger.error(
+                'Cannot update account table. Error: {0}'.format(e))
+            return {'status': 'error', 'msg': 'Cannot update account table'}

powerdnsadmin/models/domain.py

@@ -116,7 +116,7 @@ def update(self):
         db_domain = Domain.query.all()
         list_db_domain = [d.name for d in db_domain]
         dict_db_domain = dict((x.name, x) for x in db_domain)
-        current_app.logger.info("Found {} entries in PowerDNS-Admin".format(
+        current_app.logger.info("Found {} domains in PowerDNS-Admin".format(
             len(list_db_domain)))
         headers = {'X-API-Key': self.PDNS_API_KEY}
         try:
@@ -128,7 +128,7 @@ def update(self):
                 verify=Setting().get('verify_ssl_connections'))
             list_jdomain = [d['name'].rstrip('.') for d in jdata]
             current_app.logger.info(
-                "Found {} entries in PowerDNS server".format(len(list_jdomain)))
+                "Found {} zones in PowerDNS server".format(len(list_jdomain)))
 
             try:
                 # domains should remove from db since it doesn't exist in powerdns anymore
@@ -166,8 +166,8 @@ def update(self):
         except Exception as e:
             db.session.rollback()
             current_app.logger.error(
-                'Can not update domain table. Error: {0}'.format(e))
-            return {'status': 'error', 'msg': 'Can not update domain table'}
+                'Cannot update domain table. Error: {0}'.format(e))
+            return {'status': 'error', 'msg': 'Cannot update domain table'}
 
     def update_pdns_admin_domain(self, domain, account_id, data, do_commit=True):
         # existing domain, only update if something actually has changed

update_accounts.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+####################################################################################################################################
+# A CLI Script to update list of accounts. Can be useful for people who want to execute updates from a cronjob
+#
+# Tip:
+# When running from a cron, use flock (you might need to install it) to be sure only one process is running a time. eg:
+# */5 * * * * flock -xn "/tmp/pdns-update-zones.lock" python /var/www/html/apps/poweradmin/update_accounts.py >/dev/null 2>&1
+#
+##############################################################
+
+### Imports
+import sys
+import logging
+
+from powerdnsadmin import create_app
+from powerdnsadmin.models.account import Account
+from powerdnsadmin.models.domain import Domain
+from powerdnsadmin.models.setting import Setting
+
+app = create_app()
+app.logger.setLevel(logging.INFO)
+
+with app.app_context():
+    status = Setting().get('bg_domain_updates')
+
+    ### Check if bg_domain_updates is set to true
+    if not status:
+        app.logger.error('Please turn on "bg_domain_updates" setting to run this job.')
+        sys.exit(1)
+
+    Account().update()
+    Domain().update()

update_zones.py

@@ -29,6 +29,6 @@
         sys.exit(1)
 
     ### Start the update process
-    app.logger.info('Update zones from nameserver API')
+    app.logger.info('Update domains from nameserver API')
 
-    d = Domain().update()
+    Domain().update()