Refactoring the code

- Use Flask blueprint
- Split model and views into smaller parts
- Bug fixes
- API adjustment

powerdnsadmin/models/server.py

@@ -0,0 +1,64 @@
+import traceback
+from flask import current_app
+from urllib.parse import urljoin
+
+from ..lib import utils
+from .base import db
+from .setting import Setting
+
+
+class Server(object):
+    """
+    This is not a model, it's just an object
+    which be assigned data from PowerDNS API
+    """
+    def __init__(self, server_id=None, server_config=None):
+        self.server_id = server_id
+        self.server_config = server_config
+        # 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)
+
+    def get_config(self):
+        """
+        Get server config
+        """
+        headers = {}
+        headers['X-API-Key'] = self.PDNS_API_KEY
+
+        try:
+            jdata = utils.fetch_json(urljoin(
+                self.PDNS_STATS_URL, self.API_EXTENDED_URL +
+                '/servers/{0}/config'.format(self.server_id)),
+                                     headers=headers,
+                                     timeout=int(Setting().get('pdns_api_timeout')),
+                                     method='GET')
+            return jdata
+        except Exception as e:
+            current_app.logger.error(
+                "Can not get server configuration. DETAIL: {0}".format(e))
+            current_app.logger.debug(traceback.format_exc())
+            return []
+
+    def get_statistic(self):
+        """
+        Get server statistics
+        """
+        headers = {}
+        headers['X-API-Key'] = self.PDNS_API_KEY
+
+        try:
+            jdata = utils.fetch_json(urljoin(
+                self.PDNS_STATS_URL, self.API_EXTENDED_URL +
+                '/servers/{0}/statistics'.format(self.server_id)),
+                                     headers=headers,
+                                     timeout=int(Setting().get('pdns_api_timeout')),
+                                     method='GET')
+            return jdata
+        except Exception as e:
+            current_app.logger.error(
+                "Can not get server statistics. DETAIL: {0}".format(e))
+            current_app.logger.debug(traceback.format_exc())
+            return []