+# -*- coding: utf-8 -*-
+
+from jsonschema import validate as js_v, exceptions as js_e
+
+__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
+__version__ = "0.1"
+version_date = "Mar 2018"
+
+"""
+Validator of input data using JSON schemas for those items that not contains an OSM yang information model
+"""
+
+# Basis schemas
+patern_name = "^[ -~]+$"
+passwd_schema = {"type": "string", "minLength": 1, "maxLength": 60}
+nameshort_schema = {"type": "string", "minLength": 1, "maxLength": 60, "pattern": "^[^,;()'\"]+$"}
+name_schema = {"type": "string", "minLength": 1, "maxLength": 255, "pattern": "^[^,;()'\"]+$"}
+xml_text_schema = {"type": "string", "minLength": 1, "maxLength": 1000, "pattern": "^[^']+$"}
+description_schema = {"type": ["string", "null"], "maxLength": 255, "pattern": "^[^'\"]+$"}
+id_schema_fake = {"type": "string", "minLength": 2,
+ "maxLength": 36} # "pattern": "^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$"
+id_schema = {"type": "string", "pattern": "^[a-fA-F0-9]{8}(-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}$"}
+pci_schema = {"type": "string", "pattern": "^[0-9a-fA-F]{4}(:[0-9a-fA-F]{2}){2}\.[0-9a-fA-F]$"}
+http_schema = {"type": "string", "pattern": "^https?://[^'\"=]+$"}
+bandwidth_schema = {"type": "string", "pattern": "^[0-9]+ *([MG]bps)?$"}
+memory_schema = {"type": "string", "pattern": "^[0-9]+ *([MG]i?[Bb])?$"}
+integer0_schema = {"type": "integer", "minimum": 0}
+integer1_schema = {"type": "integer", "minimum": 1}
+path_schema = {"type": "string", "pattern": "^(\.){0,2}(/[^/\"':{}\(\)]+)+$"}
+vlan_schema = {"type": "integer", "minimum": 1, "maximum": 4095}
+vlan1000_schema = {"type": "integer", "minimum": 1000, "maximum": 4095}
+mac_schema = {"type": "string",
+ "pattern": "^[0-9a-fA-F][02468aceACE](:[0-9a-fA-F]{2}){5}$"} # must be unicast: LSB bit of MSB byte ==0
+# mac_schema={"type":"string", "pattern":"^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$"}
+ip_schema = {"type": "string",
+ "pattern": "^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"}
+ip_prefix_schema = {"type": "string",
+ "pattern": "^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/(30|[12]?[0-9])$"}
+port_schema = {"type": "integer", "minimum": 1, "maximum": 65534}
+object_schema = {"type": "object"}
+schema_version_2 = {"type": "integer", "minimum": 2, "maximum": 2}
+# schema_version_string={"type":"string","enum": ["0.1", "2", "0.2", "3", "0.3"]}
+log_level_schema = {"type": "string", "enum": ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]}
+checksum_schema = {"type": "string", "pattern": "^[0-9a-fA-F]{32}$"}
+size_schema = {"type": "integer", "minimum": 1, "maximum": 100}
+
+schema_version = {"type": "string", "enum": ["1.0"]}
+schema_type = {"type": "string"}
+
+vim_new_schema = {
+ "title": "vims new user input schema",
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "type": "object",
+ "properties": {
+ "schema_version": schema_version,
+ "schema_type": schema_type,
+ "name": name_schema,
+ "description": description_schema,
+ "vim_type": {"enum": ["openstack", "openvim", "vmware", "opennebula", "aws"]},
+ "vim_url": description_schema,
+ # "vim_url_admin": description_schema,
+ # "vim_tenant": name_schema,
+ "vim_tenant_name": name_schema,
+ "vim_user": nameshort_schema,
+ "vim_password": nameshort_schema,
+ "config": {"type": "object"}
+ },
+ "required": ["name", "vim_url", "vim_type", "vim_user", "vim_password", "vim_tenant_name"],
+ "additionalProperties": False
+}
+vim_edit_schema = {
+ "title": "datacenter edit nformation schema",
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "type": "object",
+ "properties": {
+ "name": name_schema,
+ "description": description_schema,
+ "type": nameshort_schema, # currently "openvim" or "openstack", can be enlarged with plugins
+ "vim_url": description_schema,
+ "vim_url_admin": description_schema,
+ "vim_tenant": name_schema,
+ "vim_tenant_name": name_schema,
+ "vim_username": nameshort_schema,
+ "vim_password": nameshort_schema,
+ "config": {"type": "object"}
+ },
+ "additionalProperties": False
+}
+
+
+sdn_properties = {
+ "name": name_schema,
+ "dpid": {"type": "string", "pattern": "^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){7}$"},
+ "ip": ip_schema,
+ "port": port_schema,
+ "type": {"type": "string", "enum": ["opendaylight", "floodlight", "onos"]},
+ "version": {"type": "string", "minLength": 1, "maxLength": 12},
+ "user": nameshort_schema,
+ "password": passwd_schema
+}
+sdn_new_schema = {
+ "title": "sdn controller information schema",
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "type": "object",
+ "properties": sdn_properties,
+ "required": ["name", "port", 'ip', 'dpid', 'type'],
+ "additionalProperties": False
+}
+sdn_edit_schema = {
+ "title": "sdn controller update information schema",
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "type": "object",
+ "properties": sdn_properties,
+ "required": ["name", "port", 'ip', 'dpid', 'type'],
+ "additionalProperties": False
+}
+sdn_port_mapping_schema = {
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "title": "sdn port mapping information schema",
+ "type": "array",
+ "items": {
+ "type": "object",
+ "properties": {
+ "compute_node": nameshort_schema,
+ "ports": {
+ "type": "array",
+ "items": {
+ "type": "object",
+ "properties": {
+ "pci": pci_schema,
+ "switch_port": nameshort_schema,
+ "switch_mac": mac_schema
+ },
+ "required": ["pci"]
+ }
+ }
+ },
+ "required": ["compute_node", "ports"]
+ }
+}
+sdn_external_port_schema = {
+ "$schema": "http://json-schema.org/draft-04/schema#",
+ "title": "External port ingformation",
+ "type": "object",
+ "properties": {
+ "port": {"type": "string", "minLength": 1, "maxLength": 60},
+ "vlan": vlan_schema,
+ "mac": mac_schema
+ },
+ "required": ["port"]
+}
+
+
+nbi_new_input_schemas = {
+ "vims": vim_new_schema,
+ "sdns": sdn_new_schema
+}
+
+nbi_edit_input_schemas = {
+ "vims": vim_edit_schema,
+ "sdns": sdn_edit_schema
+}
+
+
+class ValidationError(Exception):
+ pass
+
+
+def validate_input(indata, item, new=True):
+ """
+ Validates input data agains json schema
+ :param indata: user input data. Should be a dictionary
+ :param item: can be users, projects, vims, sdns
+ :param new: True if the validation is for creating or False if it is for editing
+ :return: None if ok, raises ValidationError exception otherwise
+ """
+ try:
+ if new:
+ schema_to_use = nbi_new_input_schemas.get(item)
+ else:
+ schema_to_use = nbi_edit_input_schemas.get(item)
+ if schema_to_use:
+ js_v(indata, schema_to_use)
+ return None
+ except js_e.ValidationError as e:
+ if e.path:
+ error_pos = "at '" + ":".join(e.path) + "'"
+ else:
+ error_pos = ""
+ raise ValidationError("Format error {} '{}' ".format(error_pos, e))