Fixes 1367 by preventing pyang discard repeated constituent-base-element-id
[osm/NBI.git] / osm_nbi / nbi.py
index a72fa58..ecd6a5a 100644 (file)
@@ -1,36 +1,58 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import cherrypy
 import time
 import json
 import yaml
-import html_out as html
+import osm_nbi.html_out as html
 import logging
-from engine import Engine, EngineException
-from dbbase import DbException
-from fsbase import FsException
-from msgbase import MsgException
-from base64 import standard_b64decode
-#from os import getenv
+import logging.handlers
+import getopt
+import sys
+
+from osm_nbi.authconn import AuthException, AuthconnException
+from osm_nbi.auth import Authenticator
+from osm_nbi.engine import Engine, EngineException
+from osm_nbi.subscriptions import SubscriptionThread
+from osm_nbi.validation import ValidationError
+from osm_common.dbbase import DbException
+from osm_common.fsbase import FsException
+from osm_common.msgbase import MsgException
 from http import HTTPStatus
-#from http.client import responses as http_responses
 from codecs import getreader
-from os import environ
+from os import environ, path
+from osm_nbi import version as nbi_version, version_date as nbi_version_date
 
 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
 
-# TODO consider to remove and provide version using the static version file
-__version__ = "0.1.3"
-version_date = "Apr 2018"
-database_version = '1.0'
+__version__ = "0.1.3"    # file version, not NBI version
+version_date = "Aug 2019"
+
+database_version = '1.2'
+auth_database_version = '1.0'
+nbi_server = None           # instance of Server class
+subscription_thread = None  # instance of SubscriptionThread class
 
 """
 North Bound Interface  (O: OSM specific; 5,X: SOL005 not implemented yet; O5: SOL005 implemented)
 URL: /osm                                                       GET     POST    PUT     DELETE  PATCH
-        /nsd/v1                                                 O       O
-            /ns_descriptors_content                             O       O       
-                /<nsdInfoId>                                    O       O       O       O     
+        /nsd/v1
+            /ns_descriptors_content                             O       O
+                /<nsdInfoId>                                    O       O       O       O
             /ns_descriptors                                     O5      O5
                 /<nsdInfoId>                                    O5                      O5      5
                     /nsd_content                                O5              O5
@@ -44,7 +66,7 @@ URL: /osm                                                       GET     POST
 
         /vnfpkgm/v1
             /vnf_packages_content                               O       O
-                /<vnfPkgId>                                     O                       O     
+                /<vnfPkgId>                                     O                       O
             /vnf_packages                                       O5      O5
                 /<vnfPkgId>                                     O5                      O5      5
                     /package_content                            O5               O5
@@ -56,9 +78,9 @@ URL: /osm                                                       GET     POST
 
         /nslcm/v1
             /ns_instances_content                               O       O
-                /<nsInstanceId>                                 O                       O     
+                /<nsInstanceId>                                 O                       O
             /ns_instances                                       5       5
-                /<nsInstanceId>                                 5                       5     
+                /<nsInstanceId>                                 O5                      O5
                     instantiate                                         O5
                     terminate                                           O5
                     action                                              O
@@ -67,57 +89,408 @@ URL: /osm                                                       GET     POST
             /ns_lcm_op_occs                                     5       5
                 /<nsLcmOpOccId>                                 5                       5       5
                     TO BE COMPLETED                             5               5
+            /vnf_instances  (also vnfrs for compatibility)      O
+                /<vnfInstanceId>                                O
             /subscriptions                                      5       5
                 /<subscriptionId>                               5                       X
+
+        /pdu/v1
+            /pdu_descriptors                                    O       O
+                /<id>                                           O               O       O       O
+
         /admin/v1
             /tokens                                             O       O
-                /<id>                                           O                       O     
+                /<id>                                           O                       O
             /users                                              O       O
-                /<id>                                           O                       O     
+                /<id>                                           O               O       O       O
             /projects                                           O       O
-                /<id>                                           O                       O     
-            /vims_accounts  (also vims for compatibility)       O       O
-                /<id>                                           O                       O       O     
+                /<id>                                           O                       O
+            /vim_accounts  (also vims for compatibility)        O       O
+                /<id>                                           O                       O       O
+            /wim_accounts                                       O       O
+                /<id>                                           O                       O       O
             /sdns                                               O       O
-                /<id>                                           O                       O       O     
+                /<id>                                           O                       O       O
+            /k8sclusters                                        O       O
+                /<id>                                           O                       O       O
+            /k8srepos                                           O       O
+                /<id>                                           O                               O
+            /osmrepos                                           O       O
+                /<id>                                           O                               O
+
+        /nst/v1                                                 O       O
+            /netslice_templates_content                         O       O
+                /<nstInfoId>                                    O       O       O       O
+            /netslice_templates                                 O       O
+                /<nstInfoId>                                    O                       O       O
+                    /nst_content                                O               O
+                    /nst                                        O
+                    /artifacts[/<artifactPath>]                 O
+            /subscriptions                                      X       X
+                /<subscriptionId>                               X                       X
+
+        /nsilcm/v1
+            /netslice_instances_content                         O       O
+                /<SliceInstanceId>                              O                       O
+            /netslice_instances                                 O       O
+                /<SliceInstanceId>                              O                       O
+                    instantiate                                         O
+                    terminate                                           O
+                    action                                              O
+            /nsi_lcm_op_occs                                    O       O
+                /<nsiLcmOpOccId>                                O                       O       O
+            /subscriptions                                      X       X
+                /<subscriptionId>                               X                       X
 
-query string.
-    <attrName>[.<attrName>...]*[.<op>]=<value>[,<value>...]&...
-    op: "eq"(or empty to one or the values) | "neq" (to any of the values) | "gt" | "lt" | "gte" | "lte" | "cont" | "ncont"
-    all_fields, fields=x,y,.., exclude_default, exclude_fields=x,y,...
+query string:
+    Follows SOL005 section 4.3.2 It contains extra METHOD to override http method, FORCE to force.
+        simpleFilterExpr := <attrName>["."<attrName>]*["."<op>]"="<value>[","<value>]*
+        filterExpr := <simpleFilterExpr>["&"<simpleFilterExpr>]*
+        op := "eq" | "neq" (or "ne") | "gt" | "lt" | "gte" | "lte" | "cont" | "ncont"
+        attrName := string
+    For filtering inside array, it must select the element of the array, or add ANYINDEX to apply the filtering over any
+    item of the array, that is, pass if any item of the array pass the filter.
+    It allows both ne and neq for not equal
+    TODO: 4.3.3 Attribute selectors
+        all_fields, fields=x,y,.., exclude_default, exclude_fields=x,y,...
         (none) … same as “exclude_default”
         all_fields     … all attributes.
-        fields=<list>  … all attributes except all complex attributes with minimum cardinality of zero that are not conditionally mandatory, and that are not provided in <list>.
-        exclude_fields=<list>  … all attributes except those complex attributes with a minimum cardinality of zero that are not conditionally mandatory, and that are provided in <list>.
-        exclude_default        … all attributes except those complex attributes with a minimum cardinality of zero that are not conditionally mandatory, and that are part of the "default exclude set" defined in the present specification for the particular resource
-        exclude_default and include=<list>     … all attributes except those complex attributes with a minimum cardinality of zero that are not conditionally mandatory and that are part of the "default exclude set" defined in the present specification for the particular resource, but that are not part of <list>
+        fields=<list>  … all attributes except all complex attributes with minimum cardinality of zero that are not
+        conditionally mandatory, and that are not provided in <list>.
+        exclude_fields=<list>  … all attributes except those complex attributes with a minimum cardinality of zero that
+        are not conditionally mandatory, and that are provided in <list>.
+        exclude_default        … all attributes except those complex attributes with a minimum cardinality of zero that are not
+        conditionally mandatory, and that are part of the "default exclude set" defined in the present specification for
+        the particular resource
+        exclude_default and include=<list>     … all attributes except those complex attributes with a minimum cardinality
+        of zero that are not conditionally mandatory and that are part of the "default exclude set" defined in the
+        present specification for the particular resource, but that are not part of <list>
+    Additionally it admits some administrator values:
+        FORCE: To force operations skipping dependency checkings
+        ADMIN: To act as an administrator or a different project
+        PUBLIC: To get public descriptors or set a descriptor as public
+        SET_PROJECT: To make a descriptor available for other project
+        
 Header field name      Reference       Example Descriptions
     Accept     IETF RFC 7231 [19]      application/json        Content-Types that are acceptable for the response.
     This header field shall be present if the response is expected to have a non-empty message body.
     Content-Type       IETF RFC 7231 [19]      application/json        The MIME type of the body of the request.
     This header field shall be present if the request has a non-empty message body.
-    Authorization      IETF RFC 7235 [22]      Bearer mF_9.B5f-4.1JqM  The authorization token for the request. Details are specified in clause 4.5.3.
+    Authorization      IETF RFC 7235 [22]      Bearer mF_9.B5f-4.1JqM  The authorization token for the request.
+    Details are specified in clause 4.5.3.
     Range      IETF RFC 7233 [21]      1000-2000       Requested range of bytes from a file
 Header field name      Reference       Example Descriptions
     Content-Type       IETF RFC 7231 [19]      application/json        The MIME type of the body of the response.
     This header field shall be present if the response has a non-empty message body.
-    Location   IETF RFC 7231 [19]      http://www.example.com/vnflcm/v1/vnf_instances/123      Used in redirection, or when a new resource has been created.
+    Location   IETF RFC 7231 [19]      http://www.example.com/vnflcm/v1/vnf_instances/123      Used in redirection, or when a
+    new resource has been created.
     This header field shall be present if the response status code is 201 or 3xx.
-    In the present document this header field is also used if the response status code is 202 and a new resource was created.
-    WWW-Authenticate   IETF RFC 7235 [22]      Bearer realm="example"  Challenge if the corresponding HTTP request has not provided authorization, or error details if the corresponding HTTP request has provided an invalid authorization token.
-    Accept-Ranges      IETF RFC 7233 [21]      bytes   Used by the Server to signal whether or not it supports ranges for certain resources.
-    Content-Range      IETF RFC 7233 [21]      bytes 21010-47021/ 47022        Signals the byte range that is contained in the response, and the total length of the file.
+    In the present document this header field is also used if the response status code is 202 and a new resource was
+    created.
+    WWW-Authenticate   IETF RFC 7235 [22]      Bearer realm="example"  Challenge if the corresponding HTTP request has not
+    provided authorization, or error details if the corresponding HTTP request has provided an invalid authorization
+    token.
+    Accept-Ranges      IETF RFC 7233 [21]      bytes   Used by the Server to signal whether or not it supports ranges for
+    certain resources.
+    Content-Range      IETF RFC 7233 [21]      bytes 21010-47021/ 47022        Signals the byte range that is contained in the
+    response, and the total length of the file.
     Retry-After        IETF RFC 7231 [19]      Fri, 31 Dec 1999 23:59:59 GMT
-
-    or
-
-    120        Used to indicate how long the user agent ought to wait before making a follow-up request.
-    It can be used with 503 responses.
-    The value of this field can be an HTTP-date or a number of seconds to delay after the response is received.
-
-    #TODO http header for partial uploads: Content-Range: "bytes 0-1199/15000". Id is returned first time and send in following chunks
 """
 
+valid_query_string = ("ADMIN", "SET_PROJECT", "FORCE", "PUBLIC")
+# ^ Contains possible administrative query string words:
+#     ADMIN=True(by default)|Project|Project-list:  See all elements, or elements of a project
+#           (not owned by my session project).
+#     PUBLIC=True(by default)|False: See/hide public elements. Set/Unset a topic to be public
+#     FORCE=True(by default)|False: Force edition/deletion operations
+#     SET_PROJECT=Project|Project-list: Add/Delete the topic to the projects portfolio
+
+valid_url_methods = {
+    # contains allowed URL and methods, and the role_permission name
+    "admin": {
+        "v1": {
+            "tokens": {"METHODS": ("GET", "POST", "DELETE"),
+                       "ROLE_PERMISSION": "tokens:",
+                       "<ID>": {"METHODS": ("GET", "DELETE"),
+                                "ROLE_PERMISSION": "tokens:id:"
+                                }
+                       },
+            "users": {"METHODS": ("GET", "POST"),
+                      "ROLE_PERMISSION": "users:",
+                      "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                               "ROLE_PERMISSION": "users:id:"
+                               }
+                      },
+            "projects": {"METHODS": ("GET", "POST"),
+                         "ROLE_PERMISSION": "projects:",
+                         "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                  "ROLE_PERMISSION": "projects:id:"}
+                         },
+            "roles": {"METHODS": ("GET", "POST"),
+                      "ROLE_PERMISSION": "roles:",
+                      "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                               "ROLE_PERMISSION": "roles:id:"
+                               }
+                      },
+            "vims": {"METHODS": ("GET", "POST"),
+                     "ROLE_PERMISSION": "vims:",
+                     "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                              "ROLE_PERMISSION": "vims:id:"
+                              }
+                     },
+            "vim_accounts": {"METHODS": ("GET", "POST"),
+                             "ROLE_PERMISSION": "vim_accounts:",
+                             "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                      "ROLE_PERMISSION": "vim_accounts:id:"
+                                      }
+                             },
+            "wim_accounts": {"METHODS": ("GET", "POST"),
+                             "ROLE_PERMISSION": "wim_accounts:",
+                             "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                      "ROLE_PERMISSION": "wim_accounts:id:"
+                                      }
+                             },
+            "sdns": {"METHODS": ("GET", "POST"),
+                     "ROLE_PERMISSION": "sdn_controllers:",
+                     "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                              "ROLE_PERMISSION": "sdn_controllers:id:"
+                              }
+                     },
+            "k8sclusters": {"METHODS": ("GET", "POST"),
+                            "ROLE_PERMISSION": "k8sclusters:",
+                            "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                     "ROLE_PERMISSION": "k8sclusters:id:"
+                                     }
+                            },
+            "k8srepos": {"METHODS": ("GET", "POST"),
+                         "ROLE_PERMISSION": "k8srepos:",
+                         "<ID>": {"METHODS": ("GET", "DELETE"),
+                                  "ROLE_PERMISSION": "k8srepos:id:"
+                                  }
+                         },
+            "osmrepos": {"METHODS": ("GET", "POST"),
+                         "ROLE_PERMISSION": "osmrepos:",
+                         "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                  "ROLE_PERMISSION": "osmrepos:id:"
+                                  }
+                         },
+            "domains": {"METHODS": ("GET", ),
+                        "ROLE_PERMISSION": "domains:",
+                        },
+        }
+    },
+    "pdu": {
+        "v1": {
+            "pdu_descriptors": {"METHODS": ("GET", "POST"),
+                                "ROLE_PERMISSION": "pduds:",
+                                "<ID>": {"METHODS": ("GET", "POST", "DELETE", "PATCH", "PUT"),
+                                         "ROLE_PERMISSION": "pduds:id:"
+                                         }
+                                },
+        }
+    },
+    "nsd": {
+        "v1": {
+            "ns_descriptors_content": {"METHODS": ("GET", "POST"),
+                                       "ROLE_PERMISSION": "nsds:",
+                                       "<ID>": {"METHODS": ("GET", "PUT", "DELETE"),
+                                                "ROLE_PERMISSION": "nsds:id:"
+                                                }
+                                       },
+            "ns_descriptors": {"METHODS": ("GET", "POST"),
+                               "ROLE_PERMISSION": "nsds:",
+                               "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),
+                                        "ROLE_PERMISSION": "nsds:id:",
+                                        "nsd_content": {"METHODS": ("GET", "PUT"),
+                                                        "ROLE_PERMISSION": "nsds:id:content:",
+                                                        },
+                                        "nsd": {"METHODS": ("GET",),  # descriptor inside package
+                                                "ROLE_PERMISSION": "nsds:id:content:"
+                                                },
+                                        "artifacts": {"METHODS": ("GET",),
+                                                      "ROLE_PERMISSION": "nsds:id:nsd_artifact:",
+                                                      "*": None,
+                                                      }
+                                        }
+                               },
+            "pnf_descriptors": {"TODO": ("GET", "POST"),
+                                "<ID>": {"TODO": ("GET", "DELETE", "PATCH"),
+                                         "pnfd_content": {"TODO": ("GET", "PUT")}
+                                         }
+                                },
+            "subscriptions": {"TODO": ("GET", "POST"),
+                              "<ID>": {"TODO": ("GET", "DELETE")}
+                              },
+        }
+    },
+    "vnfpkgm": {
+        "v1": {
+            "vnf_packages_content": {"METHODS": ("GET", "POST"),
+                                     "ROLE_PERMISSION": "vnfds:",
+                                     "<ID>": {"METHODS": ("GET", "PUT", "DELETE"),
+                                              "ROLE_PERMISSION": "vnfds:id:"}
+                                     },
+            "vnf_packages": {"METHODS": ("GET", "POST"),
+                             "ROLE_PERMISSION": "vnfds:",
+                             "<ID>": {"METHODS": ("GET", "DELETE", "PATCH"),  # GET: vnfPkgInfo
+                                      "ROLE_PERMISSION": "vnfds:id:",
+                                      "package_content": {"METHODS": ("GET", "PUT"),  # package
+                                                          "ROLE_PERMISSION": "vnfds:id:",
+                                                          "upload_from_uri": {"METHODS": (),
+                                                                              "TODO": ("POST", ),
+                                                                              "ROLE_PERMISSION": "vnfds:id:upload:"
+                                                                              }
+                                                          },
+                                      "vnfd": {"METHODS": ("GET", ),  # descriptor inside package
+                                               "ROLE_PERMISSION": "vnfds:id:content:"
+                                               },
+                                      "artifacts": {"METHODS": ("GET", ),
+                                                    "ROLE_PERMISSION": "vnfds:id:vnfd_artifact:",
+                                                    "*": None,
+                                                    },
+                                      "action": {"METHODS": ("POST", ),
+                                                 "ROLE_PERMISSION": "vnfds:id:action:"
+                                                 },
+                                      }
+                             },
+            "subscriptions": {"TODO": ("GET", "POST"),
+                              "<ID>": {"TODO": ("GET", "DELETE")}
+                              },
+            "vnfpkg_op_occs": {"METHODS": ("GET", ),
+                               "ROLE_PERMISSION": "vnfds:vnfpkgops:",
+                               "<ID>": {"METHODS": ("GET", ),
+                                        "ROLE_PERMISSION": "vnfds:vnfpkgops:id:"
+                                        }
+                               },
+        }
+    },
+    "nslcm": {
+        "v1": {
+            "ns_instances_content": {"METHODS": ("GET", "POST"),
+                                     "ROLE_PERMISSION": "ns_instances:",
+                                     "<ID>": {"METHODS": ("GET", "DELETE"),
+                                              "ROLE_PERMISSION": "ns_instances:id:"
+                                              }
+                                     },
+            "ns_instances": {"METHODS": ("GET", "POST"),
+                             "ROLE_PERMISSION": "ns_instances:",
+                             "<ID>": {"METHODS": ("GET", "DELETE"),
+                                      "ROLE_PERMISSION": "ns_instances:id:",
+                                      "scale": {"METHODS": ("POST",),
+                                                "ROLE_PERMISSION": "ns_instances:id:scale:"
+                                                },
+                                      "terminate": {"METHODS": ("POST",),
+                                                    "ROLE_PERMISSION": "ns_instances:id:terminate:"
+                                                    },
+                                      "instantiate": {"METHODS": ("POST",),
+                                                      "ROLE_PERMISSION": "ns_instances:id:instantiate:"
+                                                      },
+                                      "action": {"METHODS": ("POST",),
+                                                 "ROLE_PERMISSION": "ns_instances:id:action:"
+                                                 },
+                                      }
+                             },
+            "ns_lcm_op_occs": {"METHODS": ("GET",),
+                               "ROLE_PERMISSION": "ns_instances:opps:",
+                               "<ID>": {"METHODS": ("GET",),
+                                        "ROLE_PERMISSION": "ns_instances:opps:id:"
+                                        },
+                               },
+            "vnfrs": {"METHODS": ("GET",),
+                      "ROLE_PERMISSION": "vnf_instances:",
+                      "<ID>": {"METHODS": ("GET",),
+                               "ROLE_PERMISSION": "vnf_instances:id:"
+                               }
+                      },
+            "vnf_instances": {"METHODS": ("GET",),
+                              "ROLE_PERMISSION": "vnf_instances:",
+                              "<ID>": {"METHODS": ("GET",),
+                                       "ROLE_PERMISSION": "vnf_instances:id:"
+                                       }
+                              },
+            "subscriptions": {"METHODS": ("GET", "POST"),
+                              "ROLE_PERMISSION": "ns_subscriptions:",
+                              "<ID>": {"METHODS": ("GET", "DELETE"),
+                                       "ROLE_PERMISSION": "ns_subscriptions:id:"
+                                       }
+                              },
+        }
+    },
+    "nst": {
+        "v1": {
+            "netslice_templates_content": {"METHODS": ("GET", "POST"),
+                                           "ROLE_PERMISSION": "slice_templates:",
+                                           "<ID>": {"METHODS": ("GET", "PUT", "DELETE"),
+                                                    "ROLE_PERMISSION": "slice_templates:id:", }
+                                           },
+            "netslice_templates": {"METHODS": ("GET", "POST"),
+                                   "ROLE_PERMISSION": "slice_templates:",
+                                   "<ID>": {"METHODS": ("GET", "DELETE"),
+                                            "TODO": ("PATCH",),
+                                            "ROLE_PERMISSION": "slice_templates:id:",
+                                            "nst_content": {"METHODS": ("GET", "PUT"),
+                                                            "ROLE_PERMISSION": "slice_templates:id:content:"
+                                                            },
+                                            "nst": {"METHODS": ("GET",),  # descriptor inside package
+                                                    "ROLE_PERMISSION": "slice_templates:id:content:"
+                                                    },
+                                            "artifacts": {"METHODS": ("GET",),
+                                                          "ROLE_PERMISSION": "slice_templates:id:content:",
+                                                          "*": None
+                                                          }
+                                            }
+                                   },
+            "subscriptions": {"TODO": ("GET", "POST"),
+                              "<ID>": {"TODO": ("GET", "DELETE")}
+                              },
+        }
+    },
+    "nsilcm": {
+        "v1": {
+            "netslice_instances_content": {"METHODS": ("GET", "POST"),
+                                           "ROLE_PERMISSION": "slice_instances:",
+                                           "<ID>": {"METHODS": ("GET", "DELETE"),
+                                                    "ROLE_PERMISSION": "slice_instances:id:"
+                                                    }
+                                           },
+            "netslice_instances": {"METHODS": ("GET", "POST"),
+                                   "ROLE_PERMISSION": "slice_instances:",
+                                   "<ID>": {"METHODS": ("GET", "DELETE"),
+                                            "ROLE_PERMISSION": "slice_instances:id:",
+                                            "terminate": {"METHODS": ("POST",),
+                                                          "ROLE_PERMISSION": "slice_instances:id:terminate:"
+                                                          },
+                                            "instantiate": {"METHODS": ("POST",),
+                                                            "ROLE_PERMISSION": "slice_instances:id:instantiate:"
+                                                            },
+                                            "action": {"METHODS": ("POST",),
+                                                       "ROLE_PERMISSION": "slice_instances:id:action:"
+                                                       },
+                                            }
+                                   },
+            "nsi_lcm_op_occs": {"METHODS": ("GET",),
+                                "ROLE_PERMISSION": "slice_instances:opps:",
+                                "<ID>": {"METHODS": ("GET",),
+                                         "ROLE_PERMISSION": "slice_instances:opps:id:",
+                                         },
+                                },
+        }
+    },
+    "nspm": {
+        "v1": {
+            "pm_jobs": {
+                "<ID>": {
+                    "reports": {
+                        "<ID>": {"METHODS": ("GET",),
+                                 "ROLE_PERMISSION": "reports:id:",
+                                 }
+                    }
+                },
+            },
+        },
+    },
+}
+
 
 class NbiException(Exception):
 
@@ -133,134 +506,8 @@ class Server(object):
 
     def __init__(self):
         self.instance += 1
-        self.engine = Engine()
-        self.valid_methods = {   # contains allowed URL and methods
-            "admin": {
-                "v1": {
-                    "tokens": {"METHODS": ("GET", "POST", "DELETE"),
-                        "<ID>": { "METHODS": ("GET", "DELETE")}
-                    },
-                    "users": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "POST", "DELETE")}
-                    },
-                    "projects": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE")}
-                    },
-                    "vims": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE")}
-                    },
-                    "vim_accounts": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE")}
-                    },
-                    "sdns": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE")}
-                    },
-                }
-            },
-            "nsd": {
-                "v1": {
-                    "ns_descriptors_content": { "METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "PUT", "DELETE")}
-                    },
-                    "ns_descriptors": { "METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE"), "TODO": "PATCH",
-                            "nsd_content": { "METHODS": ("GET", "PUT")},
-                            "nsd": {"METHODS": "GET"},  # descriptor inside package
-                            "artifacts": {"*": {"METHODS": "GET"}}
-                        }
-
-                    },
-                    "pnf_descriptors": {"TODO": ("GET", "POST"),
-                       "<ID>": {"TODO": ("GET", "DELETE", "PATCH"),
-                            "pnfd_content": {"TODO": ("GET", "PUT")}
-                        }
-                    },
-                    "subscriptions": {"TODO": ("GET", "POST"),
-                        "<ID>": {"TODO": ("GET", "DELETE"),}
-                    },
-                }
-            },
-            "vnfpkgm": {
-                "v1": {
-                    "vnf_packages_content": { "METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "PUT", "DELETE")}
-                    },
-                    "vnf_packages": { "METHODS": ("GET", "POST"),
-                        "<ID>": { "METHODS": ("GET", "DELETE"), "TODO": "PATCH",  # GET: vnfPkgInfo
-                            "package_content": { "METHODS": ("GET", "PUT"),         # package
-                                "upload_from_uri": {"TODO": "POST"}
-                            },
-                            "vnfd": {"METHODS": "GET"},                    # descriptor inside package
-                            "artifacts": {"*": {"METHODS": "GET"}}
-                        }
-
-                    },
-                    "subscriptions": {"TODO": ("GET", "POST"),
-                        "<ID>": {"TODO": ("GET", "DELETE"),}
-                    },
-                }
-            },
-            "nslcm": {
-                "v1": {
-                    "ns_instances_content": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"METHODS": ("GET", "DELETE")}
-                    },
-                    "ns_instances": {"METHODS": ("GET", "POST"),
-                        "<ID>": {"TODO": ("GET", "DELETE"),
-                             "scale": {"TODO": "POST"},
-                             "terminate": {"METHODS": "POST"},
-                             "instantiate": {"METHODS": "POST"},
-                             "action": {"METHODS": "POST"},
-                        }
-                    },
-                    "ns_lcm_op_occs": {"METHODS": "GET",
-                        "<ID>": {"METHODS": "GET"},
-                    }
-                }
-            },
-        }
-
-    def _authorization(self):
-        token = None
-        user_passwd64 = None
-        try:
-            # 1. Get token Authorization bearer
-            auth = cherrypy.request.headers.get("Authorization")
-            if auth:
-                auth_list = auth.split(" ")
-                if auth_list[0].lower() == "bearer":
-                    token = auth_list[-1]
-                elif auth_list[0].lower() == "basic":
-                    user_passwd64 = auth_list[-1]
-            if not token:
-                if cherrypy.session.get("Authorization"):
-                    # 2. Try using session before request a new token. If not, basic authentication will generate
-                    token = cherrypy.session.get("Authorization")
-                    if token == "logout":
-                        token = None   # force Unauthorized response to insert user pasword again
-                elif user_passwd64 and cherrypy.request.config.get("auth.allow_basic_authentication"):
-                    # 3. Get new token from user password
-                    user = None
-                    passwd = None
-                    try:
-                        user_passwd = standard_b64decode(user_passwd64).decode()
-                        user, _, passwd = user_passwd.partition(":")
-                    except:
-                        pass
-                    outdata = self.engine.new_token(None, {"username": user, "password": passwd})
-                    token = outdata["id"]
-                    cherrypy.session['Authorization'] = token
-            # 4. Get token from cookie
-            # if not token:
-            #     auth_cookie = cherrypy.request.cookie.get("Authorization")
-            #     if auth_cookie:
-            #         token = auth_cookie.value
-            return self.engine.authorize(token)
-        except EngineException as e:
-            if cherrypy.session.get('Authorization'):
-                del cherrypy.session['Authorization']
-            cherrypy.response.headers["WWW-Authenticate"] = 'Bearer realm="{}"'.format(e)
-            raise
+        self.authenticator = Authenticator(valid_url_methods, valid_query_string)
+        self.engine = Engine(self.authenticator)
 
     def _format_in(self, kwargs):
         try:
@@ -272,9 +519,11 @@ class Server(object):
                     if "application/json" in cherrypy.request.headers["Content-Type"]:
                         error_text = "Invalid json format "
                         indata = json.load(self.reader(cherrypy.request.body))
+                        cherrypy.request.headers.pop("Content-File-MD5", None)
                     elif "application/yaml" in cherrypy.request.headers["Content-Type"]:
                         error_text = "Invalid yaml format "
-                        indata = yaml.load(cherrypy.request.body)
+                        indata = yaml.load(cherrypy.request.body, Loader=yaml.SafeLoader)
+                        cherrypy.request.headers.pop("Content-File-MD5", None)
                     elif "application/binary" in cherrypy.request.headers["Content-Type"] or \
                          "application/gzip" in cherrypy.request.headers["Content-Type"] or \
                          "application/zip" in cherrypy.request.headers["Content-Type"] or \
@@ -293,10 +542,12 @@ class Server(object):
                         #                          "Only 'Content-Type' of type 'application/json' or
                         # 'application/yaml' for input format are available")
                         error_text = "Invalid yaml format "
-                        indata = yaml.load(cherrypy.request.body)
+                        indata = yaml.load(cherrypy.request.body, Loader=yaml.SafeLoader)
+                        cherrypy.request.headers.pop("Content-File-MD5", None)
                 else:
                     error_text = "Invalid yaml format "
-                    indata = yaml.load(cherrypy.request.body)
+                    indata = yaml.load(cherrypy.request.body, Loader=yaml.SafeLoader)
+                    cherrypy.request.headers.pop("Content-File-MD5", None)
             if not indata:
                 indata = {}
 
@@ -310,16 +561,16 @@ class Server(object):
                         kwargs[k] = None
                     elif format_yaml:
                         try:
-                            kwargs[k] = yaml.load(v)
-                        except:
+                            kwargs[k] = yaml.load(v, Loader=yaml.SafeLoader)
+                        except Exception:
                             pass
                     elif k.endswith(".gt") or k.endswith(".lt") or k.endswith(".gte") or k.endswith(".lte"):
                         try:
                             kwargs[k] = int(v)
-                        except:
+                        except Exception:
                             try:
                                 kwargs[k] = float(v)
-                            except:
+                            except Exception:
                                 pass
                     elif v.find(",") > 0:
                         kwargs[k] = v.split(",")
@@ -329,8 +580,8 @@ class Server(object):
                             v[index] = None
                         elif format_yaml:
                             try:
-                                v[index] = yaml.load(v[index])
-                            except:
+                                v[index] = yaml.load(v[index], Loader=yaml.SafeLoader)
+                            except Exception:
                                 pass
 
             return indata
@@ -338,20 +589,22 @@ class Server(object):
             raise NbiException(error_text + str(exc), HTTPStatus.BAD_REQUEST)
         except KeyError as exc:
             raise NbiException("Query string error: " + str(exc), HTTPStatus.BAD_REQUEST)
+        except Exception as exc:
+            raise NbiException(error_text + str(exc), HTTPStatus.BAD_REQUEST)
 
     @staticmethod
-    def _format_out(data, session=None, _format=None):
+    def _format_out(data, token_info=None, _format=None):
         """
         return string of dictionary data according to requested json, yaml, xml. By default json
         :param data: response to be sent. Can be a dict, text or file
-        :param session:
-        :param _format: The format to be set as Content-Type ir data is a file
+        :param token_info: Contains among other username and project
+        :param _format: The format to be set as Content-Type if data is a file
         :return: None
         """
         accept = cherrypy.request.headers.get("Accept")
         if data is None:
             if accept and "text/html" in accept:
-                return html.format(data, cherrypy.request, cherrypy.response, session)
+                return html.format(data, cherrypy.request, cherrypy.response, token_info)
             # cherrypy.response.status = HTTPStatus.NO_CONTENT.value
             return
         elif hasattr(data, "read"):  # file object
@@ -364,51 +617,47 @@ class Server(object):
             # TODO check that cherrypy close file. If not implement pending things to close  per thread next
             return data
         if accept:
-            if "application/json" in accept:
+            if "text/html" in accept:
+                return html.format(data, cherrypy.request, cherrypy.response, token_info)
+            elif "application/yaml" in accept or "*/*" in accept:
+                pass
+            elif "application/json" in accept or (cherrypy.response.status and cherrypy.response.status >= 300):
                 cherrypy.response.headers["Content-Type"] = 'application/json; charset=utf-8'
                 a = json.dumps(data, indent=4) + "\n"
-                return a.encode("utf8")
-            elif "text/html" in accept:
-                return html.format(data, cherrypy.request, cherrypy.response, session)
-
-            elif "application/yaml" in accept or "*/*" in accept or "text/plain" in accept:
-                pass
-            else:
-                raise cherrypy.HTTPError(HTTPStatus.NOT_ACCEPTABLE.value,
-                                         "Only 'Accept' of type 'application/json' or 'application/yaml' "
-                                         "for output format are available")
+                return a.encode("utf8") 
         cherrypy.response.headers["Content-Type"] = 'application/yaml'
         return yaml.safe_dump(data, explicit_start=True, indent=4, default_flow_style=False, tags=False,
                               encoding='utf-8', allow_unicode=True)  # , canonical=True, default_style='"'
 
     @cherrypy.expose
     def index(self, *args, **kwargs):
-        session = None
+        token_info = None
         try:
             if cherrypy.request.method == "GET":
-                session = self._authorization()
-                outdata = "Index page"
+                token_info = self.authenticator.authorize()
+                outdata = token_info   # Home page
             else:
                 raise cherrypy.HTTPError(HTTPStatus.METHOD_NOT_ALLOWED.value,
-                                 "Method {} not allowed for tokens".format(cherrypy.request.method))
+                                         "Method {} not allowed for tokens".format(cherrypy.request.method))
 
-            return self._format_out(outdata, session)
+            return self._format_out(outdata, token_info)
 
-        except EngineException as e:
-            cherrypy.log("index Exception {}".format(e))
+        except (EngineException, AuthException) as e:
+            cherrypy.log("index Exception {}".format(e))
             cherrypy.response.status = e.http_code.value
-            return self._format_out("Welcome to OSM!", session)
+            return self._format_out("Welcome to OSM!", token_info)
 
     @cherrypy.expose
     def version(self, *args, **kwargs):
         # TODO consider to remove and provide version using the static version file
-        global __version__, version_date
         try:
             if cherrypy.request.method != "GET":
                 raise NbiException("Only method GET is allowed", HTTPStatus.METHOD_NOT_ALLOWED)
             elif args or kwargs:
                 raise NbiException("Invalid URL or query string for version", HTTPStatus.METHOD_NOT_ALLOWED)
-            return __version__ + " " + version_date
+            # TODO include version of other modules, pick up from some kafka admin message
+            osm_nbi_version = {"version": nbi_version, "date": nbi_version_date}
+            return self._format_out(osm_nbi_version)
         except NbiException as e:
             cherrypy.response.status = e.http_code.value
             problem_details = {
@@ -418,64 +667,95 @@ class Server(object):
             }
             return self._format_out(problem_details, None)
 
-    @cherrypy.expose
-    def token(self, method, token_id=None, kwargs=None):
-        session = None
-        # self.engine.load_dbase(cherrypy.request.app.config)
-        indata = self._format_in(kwargs)
-        if not isinstance(indata, dict):
-            raise NbiException("Expected application/yaml or application/json Content-Type", HTTPStatus.BAD_REQUEST)
+    def domain(self):
         try:
-            if method == "GET":
-                session = self._authorization()
-                if token_id:
-                    outdata = self.engine.get_token(session, token_id)
-                else:
-                    outdata = self.engine.get_token_list(session)
-            elif method == "POST":
-                try:
-                    session = self._authorization()
-                except:
-                    session = None
-                if kwargs:
-                    indata.update(kwargs)
-                outdata = self.engine.new_token(session, indata, cherrypy.request.remote)
-                session = outdata
-                cherrypy.session['Authorization'] = outdata["_id"]
-                self._set_location_header("admin", "v1", "tokens", outdata["_id"])
-                # cherrypy.response.cookie["Authorization"] = outdata["id"]
-                # cherrypy.response.cookie["Authorization"]['expires'] = 3600
-            elif method == "DELETE":
-                if not token_id and "id" in kwargs:
-                    token_id = kwargs["id"]
-                elif not token_id:
-                    session = self._authorization()
-                    token_id = session["_id"]
-                outdata = self.engine.del_token(token_id)
-                oudata = None
-                session = None
-                cherrypy.session['Authorization'] = "logout"
-                # cherrypy.response.cookie["Authorization"] = token_id
-                # cherrypy.response.cookie["Authorization"]['expires'] = 0
-            else:
-                raise NbiException("Method {} not allowed for token".format(method), HTTPStatus.METHOD_NOT_ALLOWED)
-            return self._format_out(outdata, session)
-        except (NbiException, EngineException, DbException) as e:
-            cherrypy.log("tokens Exception {}".format(e))
+            domains = {
+                "user_domain_name": cherrypy.tree.apps['/osm'].config["authentication"].get("user_domain_name"),
+                "project_domain_name": cherrypy.tree.apps['/osm'].config["authentication"].get("project_domain_name")}
+            return self._format_out(domains)
+        except NbiException as e:
             cherrypy.response.status = e.http_code.value
             problem_details = {
                 "code": e.http_code.name,
                 "status": e.http_code.value,
                 "detail": str(e),
             }
-            return self._format_out(problem_details, session)
+            return self._format_out(problem_details, None)
+
+    @staticmethod
+    def _format_login(token_info):
+        """
+        Changes cherrypy.request.login to include username/project_name;session so that cherrypy access log will
+        log this information
+        :param token_info: Dictionary with token content
+        :return: None
+        """
+        cherrypy.request.login = token_info.get("username", "-")
+        if token_info.get("project_name"):
+            cherrypy.request.login += "/" + token_info["project_name"]
+        if token_info.get("id"):
+            cherrypy.request.login += ";session=" + token_info["id"][0:12]
+
+    @cherrypy.expose
+    def token(self, method, token_id=None, kwargs=None):
+        token_info = None
+        # self.engine.load_dbase(cherrypy.request.app.config)
+        indata = self._format_in(kwargs)
+        if not isinstance(indata, dict):
+            raise NbiException("Expected application/yaml or application/json Content-Type", HTTPStatus.BAD_REQUEST)
+
+        if method == "GET":
+            token_info = self.authenticator.authorize()
+            # for logging
+            self._format_login(token_info)
+            if token_id:
+                outdata = self.authenticator.get_token(token_info, token_id)
+            else:
+                outdata = self.authenticator.get_token_list(token_info)
+        elif method == "POST":
+            try:
+                token_info = self.authenticator.authorize()
+            except Exception:
+                token_info = None
+            if kwargs:
+                indata.update(kwargs)
+            # This is needed to log the user when authentication fails
+            cherrypy.request.login = "{}".format(indata.get("username", "-"))
+            outdata = token_info = self.authenticator.new_token(token_info, indata, cherrypy.request.remote)
+            cherrypy.session['Authorization'] = outdata["_id"]
+            self._set_location_header("admin", "v1", "tokens", outdata["_id"])
+            # for logging
+            self._format_login(token_info)
+
+            # cherrypy.response.cookie["Authorization"] = outdata["id"]
+            # cherrypy.response.cookie["Authorization"]['expires'] = 3600
+        elif method == "DELETE":
+            if not token_id and "id" in kwargs:
+                token_id = kwargs["id"]
+            elif not token_id:
+                token_info = self.authenticator.authorize()
+                # for logging
+                self._format_login(token_info)
+                token_id = token_info["_id"]
+            outdata = self.authenticator.del_token(token_id)
+            token_info = None
+            cherrypy.session['Authorization'] = "logout"
+            # cherrypy.response.cookie["Authorization"] = token_id
+            # cherrypy.response.cookie["Authorization"]['expires'] = 0
+        else:
+            raise NbiException("Method {} not allowed for token".format(method), HTTPStatus.METHOD_NOT_ALLOWED)
+        return self._format_out(outdata, token_info)
 
     @cherrypy.expose
     def test(self, *args, **kwargs):
+        if not cherrypy.config.get("server.enable_test") or (isinstance(cherrypy.config["server.enable_test"], str) and
+                                                             cherrypy.config["server.enable_test"].lower() == "false"):
+            cherrypy.response.status = HTTPStatus.METHOD_NOT_ALLOWED.value
+            return "test URL is disabled"
         thread_info = None
         if args and args[0] == "help":
-            return "<html><pre>\ninit\nfile/<name>  download file\ndb-clear/table\nprune\nlogin\nlogin2\n"\
-                    "sleep/<time>\nmessage/topic\n</pre></html>"
+            return "<html><pre>\ninit\nfile/<name>  download file\ndb-clear/table\nfs-clear[/folder]\nlogin\nlogin2\n"\
+                   "sleep/<time>\nmessage/topic\n</pre></html>"
 
         elif args and args[0] == "init":
             try:
@@ -495,9 +775,16 @@ class Server(object):
             return f
 
         elif len(args) == 2 and args[0] == "db-clear":
-            return self.engine.del_item_list({"project_id": "admin"}, args[1], {})
-        elif args and args[0] == "prune":
-            return self.engine.prune()
+            deleted_info = self.engine.db.del_list(args[1], kwargs)
+            return "{} {} deleted\n".format(deleted_info["deleted"], args[1])
+        elif len(args) and args[0] == "fs-clear":
+            if len(args) >= 2:
+                folders = (args[1],)
+            else:
+                folders = self.engine.fs.dir_ls(".")
+            for folder in folders:
+                self.engine.fs.file_delete(folder)
+            return ",".join(folders) + " folders deleted\n"
         elif args and args[0] == "login":
             if not cherrypy.request.headers.get("Authorization"):
                 cherrypy.response.headers["WWW-Authenticate"] = 'Basic realm="Access to OSM site", charset="UTF-8"'
@@ -518,18 +805,19 @@ class Server(object):
             time.sleep(sleep_time)
             # thread_info
         elif len(args) >= 2 and args[0] == "message":
-            topic = args[1]
-            return_text = "<html><pre>{} ->\n".format(topic)
+            main_topic = args[1]
+            return_text = "<html><pre>{} ->\n".format(main_topic)
             try:
                 if cherrypy.request.method == 'POST':
-                    to_send = yaml.load(cherrypy.request.body)
+                    to_send = yaml.load(cherrypy.request.body, Loader=yaml.SafeLoader)
                     for k, v in to_send.items():
-                        self.engine.msg.write(topic, k, v)
+                        self.engine.msg.write(main_topic, k, v)
                         return_text += "  {}: {}\n".format(k, v)
                 elif cherrypy.request.method == 'GET':
                     for k, v in kwargs.items():
-                        self.engine.msg.write(topic, k, yaml.load(v))
-                        return_text += "  {}: {}\n".format(k, yaml.load(v))
+                        v_dict = yaml.load(v, Loader=yaml.SafeLoader)
+                        self.engine.msg.write(main_topic, k, v_dict)
+                        return_text += "  {}: {}\n".format(k, v_dict)
             except Exception as e:
                 return_text += "Error: " + str(e)
             return_text += "</pre></html>\n"
@@ -544,7 +832,7 @@ class Server(object):
             "  session: {}\n".format(cherrypy.session) +
             "  cookie: {}\n".format(cherrypy.request.cookie) +
             "  method: {}\n".format(cherrypy.request.method) +
-            " session: {}\n".format(cherrypy.session.get('fieldname')) +
+            "  session: {}\n".format(cherrypy.session.get('fieldname')) +
             "  body:\n")
         return_text += "    length: {}\n".format(cherrypy.request.body.length)
         if cherrypy.request.body.length:
@@ -555,11 +843,12 @@ class Server(object):
         return_text += "</pre></html>"
         return return_text
 
-    def _check_valid_url_method(self, method, *args):
+    @staticmethod
+    def _check_valid_url_method(method, *args):
         if len(args) < 3:
-            raise NbiException("URL must contain at least 'topic/version/item'", HTTPStatus.METHOD_NOT_ALLOWED)
+            raise NbiException("URL must contain at least 'main_topic/version/topic'", HTTPStatus.METHOD_NOT_ALLOWED)
 
-        reference = self.valid_methods
+        reference = valid_url_methods
         for arg in args:
             if arg is None:
                 break
@@ -572,42 +861,135 @@ class Server(object):
             elif "<ID>" in reference:
                 reference = reference["<ID>"]
             elif "*" in reference:
-                reference = reference["*"]
+                # if there is content
+                if reference["*"]:
+                    reference = reference["*"]
                 break
             else:
                 raise NbiException("Unexpected URL item {}".format(arg), HTTPStatus.METHOD_NOT_ALLOWED)
         if "TODO" in reference and method in reference["TODO"]:
             raise NbiException("Method {} not supported yet for this URL".format(method), HTTPStatus.NOT_IMPLEMENTED)
-        elif "METHODS" in reference and not method in reference["METHODS"]:
+        elif "METHODS" in reference and method not in reference["METHODS"]:
             raise NbiException("Method {} not supported for this URL".format(method), HTTPStatus.METHOD_NOT_ALLOWED)
-        return
+        return reference["ROLE_PERMISSION"] + method.lower()
 
     @staticmethod
-    def _set_location_header(topic, version, item, id):
+    def _set_location_header(main_topic, version, topic, id):
         """
         Insert response header Location with the URL of created item base on URL params
-        :param topic:
+        :param main_topic:
         :param version:
-        :param item:
+        :param topic:
         :param id:
         :return: None
         """
         # Use cherrypy.request.base for absoluted path and make use of request.header HOST just in case behind aNAT
-        cherrypy.response.headers["Location"] = "/osm/{}/{}/{}/{}".format(topic, version, item, id)
+        cherrypy.response.headers["Location"] = "/osm/{}/{}/{}/{}".format(main_topic, version, topic, id)
         return
 
+    @staticmethod
+    def _extract_query_string_operations(kwargs, method):
+        """
+
+        :param kwargs:
+        :return:
+        """
+        query_string_operations = []
+        if kwargs:
+            for qs in ("FORCE", "PUBLIC", "ADMIN", "SET_PROJECT"):
+                if qs in kwargs and kwargs[qs].lower() != "false":
+                    query_string_operations.append(qs.lower() + ":" + method.lower())
+        return query_string_operations
+
+    @staticmethod
+    def _manage_admin_query(token_info, kwargs, method, _id):
+        """
+        Processes the administrator query inputs (if any) of FORCE, ADMIN, PUBLIC, SET_PROJECT
+        Check that users has rights to use them and returs the admin_query
+        :param token_info: token_info rights obtained by token
+        :param kwargs: query string input.
+        :param method: http method: GET, POSST, PUT, ...
+        :param _id:
+        :return: admin_query dictionary with keys:
+            public: True, False or None
+            force: True or False
+            project_id: tuple with projects used for accessing an element
+            set_project: tuple with projects that a created element will belong to
+            method: show, list, delete, write
+        """
+        admin_query = {"force": False, "project_id": (token_info["project_id"], ), "username": token_info["username"],
+                       "admin": token_info["admin"], "public": None,
+                       "allow_show_user_project_role": token_info["allow_show_user_project_role"]}
+        if kwargs:
+            # FORCE
+            if "FORCE" in kwargs:
+                if kwargs["FORCE"].lower() != "false":  # if None or True set force to True
+                    admin_query["force"] = True
+                del kwargs["FORCE"]
+            # PUBLIC
+            if "PUBLIC" in kwargs:
+                if kwargs["PUBLIC"].lower() != "false":  # if None or True set public to True
+                    admin_query["public"] = True
+                else:
+                    admin_query["public"] = False
+                del kwargs["PUBLIC"]
+            # ADMIN
+            if "ADMIN" in kwargs:
+                behave_as = kwargs.pop("ADMIN")
+                if behave_as.lower() != "false":
+                    if not token_info["admin"]:
+                        raise NbiException("Only admin projects can use 'ADMIN' query string", HTTPStatus.UNAUTHORIZED)
+                    if not behave_as or behave_as.lower() == "true":  # convert True, None to empty list
+                        admin_query["project_id"] = ()
+                    elif isinstance(behave_as, (list, tuple)):
+                        admin_query["project_id"] = behave_as
+                    else:   # isinstance(behave_as, str)
+                        admin_query["project_id"] = (behave_as, )
+            if "SET_PROJECT" in kwargs:
+                set_project = kwargs.pop("SET_PROJECT")
+                if not set_project:
+                    admin_query["set_project"] = list(admin_query["project_id"])
+                else:
+                    if isinstance(set_project, str):
+                        set_project = (set_project, )
+                    if admin_query["project_id"]:
+                        for p in set_project:
+                            if p not in admin_query["project_id"]:
+                                raise NbiException("Unauthorized for 'SET_PROJECT={p}'. Try with 'ADMIN=True' or "
+                                                   "'ADMIN='{p}'".format(p=p), HTTPStatus.UNAUTHORIZED)
+                    admin_query["set_project"] = set_project
+
+            # PROJECT_READ
+            # if "PROJECT_READ" in kwargs:
+            #     admin_query["project"] = kwargs.pop("project")
+            #     if admin_query["project"] == token_info["project_id"]:
+        if method == "GET":
+            if _id:
+                admin_query["method"] = "show"
+            else:
+                admin_query["method"] = "list"
+        elif method == "DELETE":
+            admin_query["method"] = "delete"
+        else:
+            admin_query["method"] = "write"
+        return admin_query
+
     @cherrypy.expose
-    def default(self, topic=None, version=None, item=None, _id=None, item2=None, *args, **kwargs):
-        session = None
+    def default(self, main_topic=None, version=None, topic=None, _id=None, item=None, *args, **kwargs):
+        token_info = None
         outdata = None
         _format = None
         method = "DONE"
-        engine_item = None
+        engine_topic = None
+        rollback = []
+        engine_session = None
         try:
-            if not topic or not version or not item:
-                raise NbiException("URL must contain at least 'topic/version/item'", HTTPStatus.METHOD_NOT_ALLOWED)
-            if topic not in ("admin", "vnfpkgm", "nsd", "nslcm"):
-                raise NbiException("URL topic '{}' not supported".format(topic), HTTPStatus.METHOD_NOT_ALLOWED)
+            if not main_topic or not version or not topic:
+                raise NbiException("URL must contain at least 'main_topic/version/topic'",
+                                   HTTPStatus.METHOD_NOT_ALLOWED)
+            if main_topic not in ("admin", "vnfpkgm", "nsd", "nslcm", "pdu", "nst", "nsilcm", "nspm"):
+                raise NbiException("URL main_topic '{}' not supported".format(main_topic),
+                                   HTTPStatus.METHOD_NOT_ALLOWED)
             if version != 'v1':
                 raise NbiException("URL version '{}' not supported".format(version), HTTPStatus.METHOD_NOT_ALLOWED)
 
@@ -616,129 +998,248 @@ class Server(object):
             else:
                 method = cherrypy.request.method
 
-            self._check_valid_url_method(method, topic, version, item, _id, item2, *args)
-
-            if topic == "admin" and item == "tokens":
+            role_permission = self._check_valid_url_method(method, main_topic, version, topic, _id, item, *args)
+            query_string_operations = self._extract_query_string_operations(kwargs, method)
+            if main_topic == "admin" and topic == "tokens":
                 return self.token(method, _id, kwargs)
-
-            # self.engine.load_dbase(cherrypy.request.app.config)
-            session = self._authorization()
+            token_info = self.authenticator.authorize(role_permission, query_string_operations, _id)
+            if main_topic == "admin" and topic == "domains":
+                return self.domain()
+            engine_session = self._manage_admin_query(token_info, kwargs, method, _id)
             indata = self._format_in(kwargs)
-            engine_item = item
-            if item == "subscriptions":
-                engine_item = topic + "_" + item
-            if item2:
-                engine_item = item2
-
-            if topic == "nsd":
-                engine_item = "nsds"
-            elif topic == "vnfpkgm":
-                engine_item = "vnfds"
-            elif topic == "nslcm":
-                engine_item = "nsrs"
-                if item == "ns_lcm_op_occs":
-                    engine_item = "nslcmops"
-            if engine_item == "vims":   # TODO this is for backward compatibility, it will remove in the future
-                engine_item = "vim_accounts"
+            engine_topic = topic
+
+            if item and topic != "pm_jobs":
+                engine_topic = item
+
+            if main_topic == "nsd":
+                engine_topic = "nsds"
+            elif main_topic == "vnfpkgm":
+                engine_topic = "vnfds"
+                if topic == "vnfpkg_op_occs":
+                    engine_topic = "vnfpkgops"
+                if topic == "vnf_packages" and item == "action":
+                    engine_topic = "vnfpkgops"
+            elif main_topic == "nslcm":
+                engine_topic = "nsrs"
+                if topic == "ns_lcm_op_occs":
+                    engine_topic = "nslcmops"
+                if topic == "vnfrs" or topic == "vnf_instances":
+                    engine_topic = "vnfrs"
+            elif main_topic == "nst":
+                engine_topic = "nsts"
+            elif main_topic == "nsilcm":
+                engine_topic = "nsis"
+                if topic == "nsi_lcm_op_occs":
+                    engine_topic = "nsilcmops"
+            elif main_topic == "pdu":
+                engine_topic = "pdus"
+            if engine_topic == "vims":   # TODO this is for backward compatibility, it will be removed in the future
+                engine_topic = "vim_accounts"
+
+            if topic == "subscriptions":
+                engine_topic = main_topic + "_" + topic
 
             if method == "GET":
-                if item2 in ("nsd_content", "package_content", "artifacts", "vnfd", "nsd"):
-                    if item2 in ("vnfd", "nsd"):
+                if item in ("nsd_content", "package_content", "artifacts", "vnfd", "nsd", "nst", "nst_content"):
+                    if item in ("vnfd", "nsd", "nst"):
                         path = "$DESCRIPTOR"
                     elif args:
                         path = args
-                    elif item2 == "artifacts":
+                    elif item == "artifacts":
                         path = ()
                     else:
                         path = None
-                    file, _format = self.engine.get_file(session, engine_item, _id, path,
-                                                            cherrypy.request.headers.get("Accept"))
+                    file, _format = self.engine.get_file(engine_session, engine_topic, _id, path,
+                                                         cherrypy.request.headers.get("Accept"))
                     outdata = file
                 elif not _id:
-                    outdata = self.engine.get_item_list(session, engine_item, kwargs)
+                    outdata = self.engine.get_item_list(engine_session, engine_topic, kwargs, api_req=True)
                 else:
-                    outdata = self.engine.get_item(session, engine_item, _id)
+                    if item == "reports":
+                        # TODO check that project_id (_id in this context) has permissions
+                        _id = args[0]
+                    outdata = self.engine.get_item(engine_session, engine_topic, _id, True)
+
             elif method == "POST":
-                if item in ("ns_descriptors_content", "vnf_packages_content"):
+                cherrypy.response.status = HTTPStatus.CREATED.value
+                if topic in ("ns_descriptors_content", "vnf_packages_content", "netslice_templates_content"):
                     _id = cherrypy.request.headers.get("Transaction-Id")
                     if not _id:
-                        _id = self.engine.new_item(session, engine_item, {}, None, cherrypy.request.headers)
-                    completed = self.engine.upload_content(session, engine_item, _id, indata, kwargs, cherrypy.request.headers)
+                        _id, _ = self.engine.new_item(rollback, engine_session, engine_topic, {}, None,
+                                                      cherrypy.request.headers)
+                    completed = self.engine.upload_content(engine_session, engine_topic, _id, indata, kwargs,
+                                                           cherrypy.request.headers)
                     if completed:
-                        self._set_location_header(topic, version, item, _id)
+                        self._set_location_header(main_topic, version, topic, _id)
                     else:
                         cherrypy.response.headers["Transaction-Id"] = _id
                     outdata = {"id": _id}
-                elif item == "ns_instances_content":
-                    _id = self.engine.new_item(session, engine_item, indata, kwargs)
-                    self.engine.ns_action(session, _id, "instantiate", {}, None)
-                    self._set_location_header(topic, version, item, _id)
+                elif topic == "ns_instances_content":
+                    # creates NSR
+                    _id, _ = self.engine.new_item(rollback, engine_session, engine_topic, indata, kwargs)
+                    # creates nslcmop
+                    indata["lcmOperationType"] = "instantiate"
+                    indata["nsInstanceId"] = _id
+                    nslcmop_id, _ = self.engine.new_item(rollback, engine_session, "nslcmops", indata, None)
+                    self._set_location_header(main_topic, version, topic, _id)
+                    outdata = {"id": _id, "nslcmop_id": nslcmop_id}
+                elif topic == "ns_instances" and item:
+                    indata["lcmOperationType"] = item
+                    indata["nsInstanceId"] = _id
+                    _id, _ = self.engine.new_item(rollback, engine_session, "nslcmops", indata, kwargs)
+                    self._set_location_header(main_topic, version, "ns_lcm_op_occs", _id)
+                    outdata = {"id": _id}
+                    cherrypy.response.status = HTTPStatus.ACCEPTED.value
+                elif topic == "netslice_instances_content":
+                    # creates NetSlice_Instance_record (NSIR)
+                    _id, _ = self.engine.new_item(rollback, engine_session, engine_topic, indata, kwargs)
+                    self._set_location_header(main_topic, version, topic, _id)
+                    indata["lcmOperationType"] = "instantiate"
+                    indata["netsliceInstanceId"] = _id
+                    nsilcmop_id, _ = self.engine.new_item(rollback, engine_session, "nsilcmops", indata, kwargs)
+                    outdata = {"id": _id, "nsilcmop_id": nsilcmop_id}
+                elif topic == "netslice_instances" and item:
+                    indata["lcmOperationType"] = item
+                    indata["netsliceInstanceId"] = _id
+                    _id, _ = self.engine.new_item(rollback, engine_session, "nsilcmops", indata, kwargs)
+                    self._set_location_header(main_topic, version, "nsi_lcm_op_occs", _id)
                     outdata = {"id": _id}
-                elif item == "ns_instances" and item2:
-                    _id = self.engine.ns_action(session, _id, item2, indata, kwargs)
-                    self._set_location_header(topic, version, "ns_lcm_op_occs", _id)
+                    cherrypy.response.status = HTTPStatus.ACCEPTED.value
+                elif topic == "vnf_packages" and item == "action":
+                    indata["lcmOperationType"] = item
+                    indata["vnfPkgId"] = _id
+                    _id, _ = self.engine.new_item(rollback, engine_session, "vnfpkgops", indata, kwargs)
+                    self._set_location_header(main_topic, version, "vnfpkg_op_occs", _id)
                     outdata = {"id": _id}
                     cherrypy.response.status = HTTPStatus.ACCEPTED.value
+                elif topic == "subscriptions":
+                    _id, _ = self.engine.new_item(rollback, engine_session, engine_topic, indata, kwargs)
+                    self._set_location_header(main_topic, version, topic, _id)
+                    link = {}
+                    link["self"] = cherrypy.response.headers["Location"]
+                    outdata = {"id": _id, "filter": indata["filter"], "callbackUri": indata["CallbackUri"],
+                               "_links": link}
+                    cherrypy.response.status = HTTPStatus.CREATED.value
                 else:
-                    _id = self.engine.new_item(session, engine_item, indata, kwargs, cherrypy.request.headers)
-                    self._set_location_header(topic, version, item, _id)
+                    _id, op_id = self.engine.new_item(rollback, engine_session, engine_topic, indata, kwargs,
+                                                      cherrypy.request.headers)
+                    self._set_location_header(main_topic, version, topic, _id)
                     outdata = {"id": _id}
-                    # TODO form NsdInfo when item in ("ns_descriptors", "vnf_packages")
-                cherrypy.response.status = HTTPStatus.CREATED.value
+                    if op_id:
+                        outdata["op_id"] = op_id
+                        cherrypy.response.status = HTTPStatus.ACCEPTED.value
+                    # TODO form NsdInfo when topic in ("ns_descriptors", "vnf_packages")
 
             elif method == "DELETE":
                 if not _id:
-                    outdata = self.engine.del_item_list(session, engine_item, kwargs)
+                    outdata = self.engine.del_item_list(engine_session, engine_topic, kwargs)
                     cherrypy.response.status = HTTPStatus.OK.value
                 else:  # len(args) > 1
-                    if item == "ns_instances_content":
-                        self.engine.ns_action(session, _id, "terminate", {"autoremove": True}, None)
-                        cherrypy.response.status = HTTPStatus.ACCEPTED.value
-                    else:
-                        force = kwargs.get("FORCE")
-                        self.engine.del_item(session, engine_item, _id, force)
-                        cherrypy.response.status = HTTPStatus.NO_CONTENT.value
-                if engine_item in ("vim_accounts", "sdns"):
-                    cherrypy.response.status = HTTPStatus.ACCEPTED.value
-
-            elif method == "PUT":
-                if not indata and not kwargs:
+                    # for NS NSI generate an operation
+                    op_id = None
+                    if topic == "ns_instances_content" and not engine_session["force"]:
+                        nslcmop_desc = {
+                            "lcmOperationType": "terminate",
+                            "nsInstanceId": _id,
+                            "autoremove": True
+                        }
+                        op_id, _ = self.engine.new_item(rollback, engine_session, "nslcmops", nslcmop_desc, kwargs)
+                        if op_id:
+                            outdata = {"_id": op_id}
+                    elif topic == "netslice_instances_content" and not engine_session["force"]:
+                        nsilcmop_desc = {
+                            "lcmOperationType": "terminate",
+                            "netsliceInstanceId": _id,
+                            "autoremove": True
+                        }
+                        op_id, _ = self.engine.new_item(rollback, engine_session, "nsilcmops", nsilcmop_desc, None)
+                        if op_id:
+                            outdata = {"_id": op_id}
+                    # if there is not any deletion in process, delete
+                    if not op_id:
+                        op_id = self.engine.del_item(engine_session, engine_topic, _id)
+                        if op_id:
+                            outdata = {"op_id": op_id}
+                    cherrypy.response.status = HTTPStatus.ACCEPTED.value if op_id else HTTPStatus.NO_CONTENT.value
+
+            elif method in ("PUT", "PATCH"):
+                op_id = None
+                if not indata and not kwargs and not engine_session.get("set_project"):
                     raise NbiException("Nothing to update. Provide payload and/or query string",
                                        HTTPStatus.BAD_REQUEST)
-                if item2 in ("nsd_content", "package_content"):
-                    completed = self.engine.upload_content(session, engine_item, _id, indata, kwargs, cherrypy.request.headers)
+                if item in ("nsd_content", "package_content", "nst_content") and method == "PUT":
+                    completed = self.engine.upload_content(engine_session, engine_topic, _id, indata, kwargs,
+                                                           cherrypy.request.headers)
                     if not completed:
                         cherrypy.response.headers["Transaction-Id"] = id
+                else:
+                    op_id = self.engine.edit_item(engine_session, engine_topic, _id, indata, kwargs)
+
+                if op_id:
+                    cherrypy.response.status = HTTPStatus.ACCEPTED.value
+                    outdata = {"op_id": op_id}
+                else:
                     cherrypy.response.status = HTTPStatus.NO_CONTENT.value
                     outdata = None
-                else:
-                    outdata = {"id": self.engine.edit_item(session, engine_item, args[1], indata, kwargs)}
             else:
                 raise NbiException("Method {} not allowed".format(method), HTTPStatus.METHOD_NOT_ALLOWED)
-            return self._format_out(outdata, session, _format)
-        except (NbiException, EngineException, DbException, FsException, MsgException) as e:
+
+            # if Role information changes, it is needed to reload the information of roles
+            if topic == "roles" and method != "GET":
+                self.authenticator.load_operation_to_allowed_roles()
+
+            if topic == "projects" and method == "DELETE" \
+                    or topic in ["users", "roles"] and method in ["PUT", "PATCH", "DELETE"]:
+                self.authenticator.remove_token_from_cache()
+
+            return self._format_out(outdata, token_info, _format)
+        except Exception as e:
+            if isinstance(e, (NbiException, EngineException, DbException, FsException, MsgException, AuthException,
+                              ValidationError, AuthconnException)):
+                http_code_value = cherrypy.response.status = e.http_code.value
+                http_code_name = e.http_code.name
+                cherrypy.log("Exception {}".format(e))
+            else:
+                http_code_value = cherrypy.response.status = HTTPStatus.BAD_REQUEST.value  # INTERNAL_SERVER_ERROR
+                cherrypy.log("CRITICAL: Exception {}".format(e), traceback=True)
+                http_code_name = HTTPStatus.BAD_REQUEST.name
             if hasattr(outdata, "close"):  # is an open file
                 outdata.close()
-            cherrypy.log("Exception {}".format(e))
-            cherrypy.response.status = e.http_code.value
             error_text = str(e)
-            if isinstance(e, MsgException):
-                error_text = "{} has been '{}' but other modules cannot be informed because an error on bus".format(
-                    engine_item[:-1], method, error_text)
+            rollback.reverse()
+            for rollback_item in rollback:
+                try:
+                    if rollback_item.get("operation") == "set":
+                        self.engine.db.set_one(rollback_item["topic"], {"_id": rollback_item["_id"]},
+                                               rollback_item["content"], fail_on_empty=False)
+                    elif rollback_item.get("operation") == "del_list":
+                        self.engine.db.del_list(rollback_item["topic"], rollback_item["filter"], 
+                                                fail_on_empty=False)
+                    else:
+                        self.engine.db.del_one(rollback_item["topic"], {"_id": rollback_item["_id"]},
+                                               fail_on_empty=False)
+                except Exception as e2:
+                    rollback_error_text = "Rollback Exception {}: {}".format(rollback_item, e2)
+                    cherrypy.log(rollback_error_text)
+                    error_text += ". " + rollback_error_text
+            # if isinstance(e, MsgException):
+            #     error_text = "{} has been '{}' but other modules cannot be informed because an error on bus".format(
+            #         engine_topic[:-1], method, error_text)
             problem_details = {
-                "code": e.http_code.name,
-                "status": e.http_code.value,
-                "detail": str(e),
+                "code": http_code_name,
+                "status": http_code_value,
+                "detail": error_text,
             }
-            return self._format_out(problem_details, session)
+            return self._format_out(problem_details, token_info)
             # raise cherrypy.HTTPError(e.http_code.value, str(e))
-
-
-# def validate_password(realm, username, password):
-#     cherrypy.log("realm "+ str(realm))
-#     if username == "admin" and password == "admin":
-#         return True
-#     return False
+        finally:
+            if token_info:
+                self._format_login(token_info)
+                if method in ("PUT", "PATCH", "POST") and isinstance(outdata, dict):
+                    for logging_id in ("id", "op_id", "nsilcmop_id", "nslcmop_id"):
+                        if outdata.get(logging_id):
+                            cherrypy.request.login += ";{}={}".format(logging_id, outdata[logging_id][:36])
 
 
 def _start_service():
@@ -748,6 +1249,8 @@ def _start_service():
     Set database, storage, message configuration
     Init database with admin/admin user password
     """
+    global nbi_server
+    global subscription_thread
     cherrypy.log.error("Starting osm_nbi")
     # update general cherrypy configuration
     update_dict = {}
@@ -756,7 +1259,7 @@ def _start_service():
     for k, v in environ.items():
         if not k.startswith("OSMNBI_"):
             continue
-        k1, _,  k2 = k[7:].lower().partition("_")
+        k1, _, k2 = k[7:].lower().partition("_")
         if not k2:
             continue
         try:
@@ -768,14 +1271,15 @@ def _start_service():
                 update_dict['server.socket_port'] = int(v)
             elif k == 'OSMNBI_SOCKET_HOST' or k == 'OSMNBI_SERVER_HOST':
                 update_dict['server.socket_host'] = v
-            elif k1 == "server":
-                update_dict['server' + k2] = v
-                # TODO add more entries
-            elif k1 in ("message", "database", "storage"):
-                if k2 == "port":
+            elif k1 in ("server", "test", "auth", "log"):
+                update_dict[k1 + '.' + k2] = v
+            elif k1 in ("message", "database", "storage", "authentication"):
+                # k2 = k2.replace('_', '.')
+                if k2 in ("port", "db_port"):
                     engine_config[k1][k2] = int(v)
                 else:
                     engine_config[k1][k2] = v
+
         except ValueError as e:
             cherrypy.log.error("Ignoring environ '{}': " + str(e))
         except Exception as e:
@@ -783,6 +1287,7 @@ def _start_service():
 
     if update_dict:
         cherrypy.config.update(update_dict)
+        engine_config["global"].update(update_dict)
 
     # logging cherrypy
     log_format_simple = "%(asctime)s %(levelname)s %(name)s %(filename)s:%(lineno)s %(message)s"
@@ -792,26 +1297,26 @@ def _start_service():
     logger_cherry = logging.getLogger("cherrypy")
     logger_nbi = logging.getLogger("nbi")
 
-    if "logfile" in engine_config["global"]:
-        file_handler = logging.handlers.RotatingFileHandler(engine_config["global"]["logfile"],
+    if "log.file" in engine_config["global"]:
+        file_handler = logging.handlers.RotatingFileHandler(engine_config["global"]["log.file"],
                                                             maxBytes=100e6, backupCount=9, delay=0)
         file_handler.setFormatter(log_formatter_simple)
         logger_cherry.addHandler(file_handler)
         logger_nbi.addHandler(file_handler)
-    else:
-        for format_, logger in {"nbi.server": logger_server,
-                                "nbi.access": logger_access,
-                                "%(name)s %(filename)s:%(lineno)s": logger_nbi
-                                }.items():
-            log_format_cherry = "%(asctime)s %(levelname)s {} %(message)s".format(format_)
-            log_formatter_cherry = logging.Formatter(log_format_cherry, datefmt='%Y-%m-%dT%H:%M:%S')
-            str_handler = logging.StreamHandler()
-            str_handler.setFormatter(log_formatter_cherry)
-            logger.addHandler(str_handler)
-
-    if engine_config["global"].get("loglevel"):
-        logger_cherry.setLevel(engine_config["global"]["loglevel"])
-        logger_nbi.setLevel(engine_config["global"]["loglevel"])
+    # log always to standard output
+    for format_, logger in {"nbi.server %(filename)s:%(lineno)s": logger_server,
+                            "nbi.access %(filename)s:%(lineno)s": logger_access,
+                            "%(name)s %(filename)s:%(lineno)s": logger_nbi
+                            }.items():
+        log_format_cherry = "%(asctime)s %(levelname)s {} %(message)s".format(format_)
+        log_formatter_cherry = logging.Formatter(log_format_cherry, datefmt='%Y-%m-%dT%H:%M:%S')
+        str_handler = logging.StreamHandler()
+        str_handler.setFormatter(log_formatter_cherry)
+        logger.addHandler(str_handler)
+
+    if engine_config["global"].get("log.level"):
+        logger_cherry.setLevel(engine_config["global"]["log.level"])
+        logger_nbi.setLevel(engine_config["global"]["log.level"])
 
     # logging other modules
     for k1, logname in {"message": "nbi.msg", "database": "nbi.db", "storage": "nbi.fs"}.items():
@@ -819,18 +1324,25 @@ def _start_service():
         logger_module = logging.getLogger(logname)
         if "logfile" in engine_config[k1]:
             file_handler = logging.handlers.RotatingFileHandler(engine_config[k1]["logfile"],
-                                                             maxBytes=100e6, backupCount=9, delay=0)
+                                                                maxBytes=100e6, backupCount=9, delay=0)
             file_handler.setFormatter(log_formatter_simple)
             logger_module.addHandler(file_handler)
         if "loglevel" in engine_config[k1]:
             logger_module.setLevel(engine_config[k1]["loglevel"])
     # TODO add more entries, e.g.: storage
     cherrypy.tree.apps['/osm'].root.engine.start(engine_config)
-    try:
-        cherrypy.tree.apps['/osm'].root.engine.init_db(target_version=database_version)
-    except EngineException:
-        pass
-    # getenv('OSMOPENMANO_TENANT', None)
+    cherrypy.tree.apps['/osm'].root.authenticator.start(engine_config)
+    cherrypy.tree.apps['/osm'].root.engine.init_db(target_version=database_version)
+    cherrypy.tree.apps['/osm'].root.authenticator.init_db(target_version=auth_database_version)
+
+    # start subscriptions thread:
+    subscription_thread = SubscriptionThread(config=engine_config, engine=nbi_server.engine)
+    subscription_thread.start()
+    # Do not capture except SubscriptionException
+
+    backend = engine_config["authentication"]["backend"]
+    cherrypy.log.error("Starting OSM NBI Version '{} {}' with '{}' authentication backend"
+                       .format(nbi_version, nbi_version_date, backend))
 
 
 def _stop_service():
@@ -838,10 +1350,16 @@ def _stop_service():
     Callback function called when cherrypy.engine stops
     TODO: Ending database connections.
     """
+    global subscription_thread
+    if subscription_thread:
+        subscription_thread.terminate()
+    subscription_thread = None
     cherrypy.tree.apps['/osm'].root.engine.stop()
     cherrypy.log.error("Stopping osm_nbi")
 
-def nbi():
+
+def nbi(config_file):
+    global nbi_server
     # conf = {
     #     '/': {
     #         #'request.dispatch': cherrypy.dispatch.MethodDispatcher(),
@@ -859,10 +1377,54 @@ def nbi():
     # cherrypy.config.update({'tools.auth_basic.on': True,
     #    'tools.auth_basic.realm': 'localhost',
     #    'tools.auth_basic.checkpassword': validate_password})
+    nbi_server = Server()
     cherrypy.engine.subscribe('start', _start_service)
     cherrypy.engine.subscribe('stop', _stop_service)
-    cherrypy.quickstart(Server(), '/osm', "nbi.cfg")
+    cherrypy.quickstart(nbi_server, '/osm', config_file)
+
+
+def usage():
+    print("""Usage: {} [options]
+        -c|--config [configuration_file]: loads the configuration file (default: ./nbi.cfg)
+        -h|--help: shows this help
+        """.format(sys.argv[0]))
+    # --log-socket-host HOST: send logs to this host")
+    # --log-socket-port PORT: send logs using this port (default: 9022)")
 
 
 if __name__ == '__main__':
-    nbi()
+    try:
+        # load parameters and configuration
+        opts, args = getopt.getopt(sys.argv[1:], "hvc:", ["config=", "help"])
+        # TODO add  "log-socket-host=", "log-socket-port=", "log-file="
+        config_file = None
+        for o, a in opts:
+            if o in ("-h", "--help"):
+                usage()
+                sys.exit()
+            elif o in ("-c", "--config"):
+                config_file = a
+            # elif o == "--log-socket-port":
+            #     log_socket_port = a
+            # elif o == "--log-socket-host":
+            #     log_socket_host = a
+            # elif o == "--log-file":
+            #     log_file = a
+            else:
+                assert False, "Unhandled option"
+        if config_file:
+            if not path.isfile(config_file):
+                print("configuration file '{}' that not exist".format(config_file), file=sys.stderr)
+                exit(1)
+        else:
+            for config_file in (__file__[:__file__.rfind(".")] + ".cfg", "./nbi.cfg", "/etc/osm/nbi.cfg"):
+                if path.isfile(config_file):
+                    break
+            else:
+                print("No configuration file 'nbi.cfg' found neither at local folder nor at /etc/osm/", file=sys.stderr)
+                exit(1)
+        nbi(config_file)
+    except getopt.GetoptError as e:
+        print(str(e), file=sys.stderr)
+        # usage()
+        exit(1)