osm_nbi/validation.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #    http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  12 # implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 from jsonschema import validate as js_v, exceptions as js_e
  17 from http import HTTPStatus
  18 from copy import deepcopy
  19
  20 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  21 __version__ = "0.1"
  22 version_date = "Mar 2018"
  23
  24 """
  25 Validator of input data using JSON schemas for those items that not contains an  OSM yang information model
  26 """
  27
  28 # Basis schemas
  29 patern_name = "^[ -~]+$"
  30 nameshort_schema = {"type": "string", "minLength": 1, "maxLength": 60, "pattern": "^[^,;()\\.\\$'\"]+$"}
  31 passwd_schema = {"type": "string", "minLength": 1, "maxLength": 60}
  32 name_schema = {"type": "string", "minLength": 1, "maxLength": 255, "pattern": "^[^,;()'\"]+$"}
  33 string_schema = {"type": "string", "minLength": 1, "maxLength": 255}
  34 xml_text_schema = {"type": "string", "minLength": 1, "maxLength": 1000, "pattern": "^[^']+$"}
  35 description_schema = {"type": ["string", "null"], "maxLength": 255, "pattern": "^[^'\"]+$"}
  36 id_schema_fake = {"type": "string", "minLength": 2, "maxLength": 36}
  37 bool_schema = {"type": "boolean"}
  38 null_schema = {"type": "null"}
  39 # "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}$"
  40 id_schema = {"type": "string", "pattern": "^[a-fA-F0-9]{8}(-[a-fA-F0-9]{4}){3}-[a-fA-F0-9]{12}$"}
  41 time_schema = {"type": "string", "pattern": "^[0-9]{4}-[0-1][0-9]-[0-3][0-9]T[0-2][0-9]([0-5]:){2}"}
  42 pci_schema = {"type": "string", "pattern": "^[0-9a-fA-F]{4}(:[0-9a-fA-F]{2}){2}\\.[0-9a-fA-F]$"}
  43 # allows [] for wildcards. For that reason huge length limit is set
  44 pci_extended_schema = {"type": "string", "pattern": "^[0-9a-fA-F.:-\\[\\]]{12,40}$"}
  45 http_schema = {"type": "string", "pattern": "^https?://[^'\"=]+$"}
  46 bandwidth_schema = {"type": "string", "pattern": "^[0-9]+ *([MG]bps)?$"}
  47 memory_schema = {"type": "string", "pattern": "^[0-9]+ *([MG]i?[Bb])?$"}
  48 integer0_schema = {"type": "integer", "minimum": 0}
  49 integer1_schema = {"type": "integer", "minimum": 1}
  50 path_schema = {"type": "string", "pattern": "^(\\.){0,2}(/[^/\"':{}\\(\\)]+)+$"}
  51 vlan_schema = {"type": "integer", "minimum": 1, "maximum": 4095}
  52 vlan1000_schema = {"type": "integer", "minimum": 1000, "maximum": 4095}
  53 mac_schema = {"type": "string",
  54               "pattern": "^[0-9a-fA-F][02468aceACE](:[0-9a-fA-F]{2}){5}$"}  # must be unicast: LSB bit of MSB byte ==0
  55 dpid_Schema = {"type": "string", "pattern": "^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){7}$"}
  56 # mac_schema={"type":"string", "pattern":"^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$"}
  57 ip_schema = {"type": "string",
  58              "pattern": "^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"}
  59 ip_prefix_schema = {"type": "string",
  60                     "pattern": "^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}"
  61                                "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/(30|[12]?[0-9])$"}
  62 port_schema = {"type": "integer", "minimum": 1, "maximum": 65534}
  63 object_schema = {"type": "object"}
  64 schema_version_2 = {"type": "integer", "minimum": 2, "maximum": 2}
  65 # schema_version_string={"type":"string","enum": ["0.1", "2", "0.2", "3", "0.3"]}
  66 log_level_schema = {"type": "string", "enum": ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]}
  67 checksum_schema = {"type": "string", "pattern": "^[0-9a-fA-F]{32}$"}
  68 size_schema = {"type": "integer", "minimum": 1, "maximum": 100}
  69 array_edition_schema = {
  70     "type": "object",
  71     "patternProperties": {
  72         "^\\$": "Any"
  73     },
  74     "additionalProperties": False,
  75     "minProperties": 1,
  76 }
  77 nameshort_list_schema = {
  78     "type": "array",
  79     "minItems": 1,
  80     "items": nameshort_schema,
  81 }
  82
  83
  84 ns_instantiate_vdu = {
  85     "title": "ns action instantiate input schema for vdu",
  86     "$schema": "http://json-schema.org/draft-04/schema#",
  87     "type": "object",
  88     "properties": {
  89         "id": name_schema,
  90         "volume": {
  91             "type": "array",
  92             "minItems": 1,
  93             "items": {
  94                 "type": "object",
  95                 "properties": {
  96                     "name": name_schema,
  97                     "vim-volume-id": name_schema,
  98                 },
  99                 "required": ["name", "vim-volume-id"],
 100                 "additionalProperties": False
 101             }
 102         },
 103         "interface": {
 104             "type": "array",
 105             "minItems": 1,
 106             "items": {
 107                 "type": "object",
 108                 "properties": {
 109                     "name": name_schema,
 110                     "ip-address": ip_schema,
 111                     "mac-address": mac_schema,
 112                     "floating-ip-required": bool_schema,
 113                 },
 114                 "required": ["name"],
 115                 "additionalProperties": False
 116             }
 117         }
 118     },
 119     "required": ["id"],
 120     "additionalProperties": False
 121 }
 122
 123 ip_profile_dns_schema = {
 124     "type": "array",
 125     "minItems": 1,
 126     "items": {
 127         "type": "object",
 128         "properties": {
 129             "address": ip_schema,
 130         },
 131         "required": ["address"],
 132         "additionalProperties": False
 133     }
 134 }
 135
 136 ip_profile_dhcp_schema = {
 137     "type": "object",
 138     "properties": {
 139         "enabled": {"type": "boolean"},
 140         "count": integer1_schema,
 141         "start-address": ip_schema
 142     },
 143     "additionalProperties": False,
 144 }
 145
 146 ip_profile_schema = {
 147     "title": "ip profile validation schame",
 148     "$schema": "http://json-schema.org/draft-04/schema#",
 149     "type": "object",
 150     "properties": {
 151         "ip-version": {"enum": ["ipv4", "ipv6"]},
 152         "subnet-address": ip_prefix_schema,
 153         "gateway-address": ip_schema,
 154         "dns-server": ip_profile_dns_schema,
 155         "dhcp-params": ip_profile_dhcp_schema,
 156     }
 157 }
 158
 159 ip_profile_update_schema = {
 160     "title": "ip profile validation schame",
 161     "$schema": "http://json-schema.org/draft-04/schema#",
 162     "type": "object",
 163     "properties": {
 164         "ip-version": {"enum": ["ipv4", "ipv6"]},
 165         "subnet-address": {"oneOf": [null_schema, ip_prefix_schema]},
 166         "gateway-address": {"oneOf": [null_schema, ip_schema]},
 167         "dns-server": {"oneOf": [null_schema, ip_profile_dns_schema]},
 168
 169         "dhcp-params": {"oneOf": [null_schema, ip_profile_dhcp_schema]},
 170     },
 171     "additionalProperties": False
 172 }
 173
 174 ns_instantiate_internal_vld = {
 175     "title": "ns action instantiate input schema for vdu",
 176     "$schema": "http://json-schema.org/draft-04/schema#",
 177     "type": "object",
 178     "properties": {
 179         "name": name_schema,
 180         "vim-network-name": name_schema,
 181         "ip-profile": ip_profile_update_schema,
 182         "internal-connection-point": {
 183             "type": "array",
 184             "minItems": 1,
 185             "items": {
 186                 "type": "object",
 187                 "properties": {
 188                     "id-ref": name_schema,
 189                     "ip-address": ip_schema,
 190                     # "mac-address": mac_schema,
 191                 },
 192                 "required": ["id-ref"],
 193                 "minProperties": 2,
 194                 "additionalProperties": False
 195             },
 196         }
 197     },
 198     "required": ["name"],
 199     "minProperties": 2,
 200     "additionalProperties": False
 201 }
 202
 203 ns_instantiate = {
 204     "title": "ns action instantiate input schema",
 205     "$schema": "http://json-schema.org/draft-04/schema#",
 206     "type": "object",
 207     "properties": {
 208         "lcmOperationType": string_schema,
 209         "nsInstanceId": id_schema,
 210         "netsliceInstanceId": id_schema,
 211         "nsName": name_schema,
 212         "nsDescription": {"oneOf": [description_schema, {"type": "null"}]},
 213         "nsdId": id_schema,
 214         "vimAccountId": id_schema,
 215         "ssh_keys": {"type": "array", "items": {"type": "string"}},
 216         "nsr_id": id_schema,
 217         "vduImage": name_schema,
 218         "vnf": {
 219             "type": "array",
 220             "minItems": 1,
 221             "items": {
 222                 "type": "object",
 223                 "properties": {
 224                     "member-vnf-index": name_schema,
 225                     "vimAccountId": id_schema,
 226                     "vdu": {
 227                         "type": "array",
 228                         "minItems": 1,
 229                         "items": ns_instantiate_vdu,
 230                     },
 231                     "internal-vld": {
 232                         "type": "array",
 233                         "minItems": 1,
 234                         "items": ns_instantiate_internal_vld
 235                     }
 236                 },
 237                 "required": ["member-vnf-index"],
 238                 "minProperties": 2,
 239                 "additionalProperties": False
 240             }
 241         },
 242         "vld": {
 243             "type": "array",
 244             "minItems": 1,
 245             "items": {
 246                 "type": "object",
 247                 "properties": {
 248                     "name": string_schema,
 249                     "vim-network-name": {"OneOf": [string_schema, object_schema]},
 250                     "ip-profile": object_schema,
 251                     "vnfd-connection-point-ref": {
 252                         "type": "array",
 253                         "minItems": 1,
 254                         "items": {
 255                             "type": "object",
 256                             "properties": {
 257                                 "member-vnf-index-ref": name_schema,
 258                                 "vnfd-connection-point-ref": name_schema,
 259                                 "ip-address": ip_schema,
 260                                 # "mac-address": mac_schema,
 261                             },
 262                             "required": ["member-vnf-index-ref", "vnfd-connection-point-ref"],
 263                             "minProperties": 3,
 264                             "additionalProperties": False
 265                         },
 266                     }
 267                 },
 268                 "required": ["name"],
 269                 "additionalProperties": False
 270             }
 271         },
 272     },
 273     "required": ["nsName", "nsdId", "vimAccountId"],
 274     "additionalProperties": False
 275 }
 276
 277 ns_action = {   # TODO for the moment it is only contemplated the vnfd primitive execution
 278     "title": "ns action input schema",
 279     "$schema": "http://json-schema.org/draft-04/schema#",
 280     "type": "object",
 281     "properties": {
 282         "lcmOperationType": string_schema,
 283         "nsInstanceId": id_schema,
 284         "member_vnf_index": name_schema,
 285         "vnf_member_index": name_schema,  # TODO for backward compatibility. To remove in future
 286         "vdu_id": name_schema,
 287         "primitive": name_schema,
 288         "primitive_params": {"type": "object"},
 289     },
 290     "required": ["primitive", "primitive_params"],   # TODO add member_vnf_index
 291     "additionalProperties": False
 292 }
 293 ns_scale = {   # TODO for the moment it is only VDU-scaling
 294     "title": "ns scale input schema",
 295     "$schema": "http://json-schema.org/draft-04/schema#",
 296     "type": "object",
 297     "properties": {
 298         "lcmOperationType": string_schema,
 299         "nsInstanceId": id_schema,
 300         "scaleType": {"enum": ["SCALE_VNF"]},
 301         "scaleVnfData": {
 302             "type": "object",
 303             "properties": {
 304                 "vnfInstanceId": name_schema,
 305                 "scaleVnfType": {"enum": ["SCALE_OUT", 'SCALE_IN']},
 306                 "scaleByStepData": {
 307                     "type": "object",
 308                     "properties": {
 309                         "scaling-group-descriptor": name_schema,
 310                         "member-vnf-index": name_schema,
 311                         "scaling-policy": name_schema,
 312                     },
 313                     "required": ["scaling-group-descriptor", "member-vnf-index"],
 314                     "additionalProperties": False
 315                 },
 316             },
 317             "required": ["scaleVnfType", "scaleByStepData"],  # vnfInstanceId
 318             "additionalProperties": False
 319         },
 320         "scaleTime": time_schema,
 321     },
 322     "required": ["scaleType", "scaleVnfData"],
 323     "additionalProperties": False
 324 }
 325
 326
 327 schema_version = {"type": "string", "enum": ["1.0"]}
 328 schema_type = {"type": "string"}
 329 vim_account_edit_schema = {
 330     "title": "vim_account edit input schema",
 331     "$schema": "http://json-schema.org/draft-04/schema#",
 332     "type": "object",
 333     "properties": {
 334         "name": name_schema,
 335         "description": description_schema,
 336         "type": nameshort_schema,
 337         "vim": name_schema,
 338         "datacenter": name_schema,
 339         "vim_url": description_schema,
 340         "vim_url_admin": description_schema,
 341         "vim_tenant": name_schema,
 342         "vim_tenant_name": name_schema,
 343         "vim_username": nameshort_schema,
 344         "vim_password": passwd_schema,
 345         "config": {"type": "object"}
 346     },
 347     "additionalProperties": False
 348 }
 349
 350 vim_account_new_schema = {
 351     "title": "vim_account creation input schema",
 352     "$schema": "http://json-schema.org/draft-04/schema#",
 353     "type": "object",
 354     "properties": {
 355         "schema_version": schema_version,
 356         "schema_type": schema_type,
 357         "name": name_schema,
 358         "description": description_schema,
 359         "vim": name_schema,
 360         "datacenter": name_schema,
 361         "vim_type": {"enum": ["openstack", "openvim", "vmware", "opennebula", "aws"]},
 362         "vim_url": description_schema,
 363         # "vim_url_admin": description_schema,
 364         # "vim_tenant": name_schema,
 365         "vim_tenant_name": name_schema,
 366         "vim_user": nameshort_schema,
 367         "vim_password": passwd_schema,
 368         "config": {"type": "object"}
 369     },
 370     "required": ["name", "vim_url", "vim_type", "vim_user", "vim_password", "vim_tenant_name"],
 371     "additionalProperties": False
 372 }
 373
 374 wim_account_edit_schema = {
 375     "title": "wim_account edit input schema",
 376     "$schema": "http://json-schema.org/draft-04/schema#",
 377     "type": "object",
 378     "properties": {
 379         "name": name_schema,
 380         "description": description_schema,
 381         "type": nameshort_schema,
 382         "wim": name_schema,
 383         "wim_url": description_schema,
 384         "user": nameshort_schema,
 385         "password": passwd_schema,
 386         "config": {"type": "object"}
 387     },
 388     "additionalProperties": False
 389 }
 390
 391 wim_account_new_schema = {
 392     "title": "wim_account creation input schema",
 393     "$schema": "http://json-schema.org/draft-04/schema#",
 394     "type": "object",
 395     "properties": {
 396         "schema_version": schema_version,
 397         "schema_type": schema_type,
 398         "name": name_schema,
 399         "description": description_schema,
 400         "wim": name_schema,
 401         "wim_type": {"enum": ["tapi", "onos", "odl", "dynpac"]},
 402         "wim_url": description_schema,
 403         "user": nameshort_schema,
 404         "password": passwd_schema,
 405         "config": {"type": "object"}
 406     },
 407     "required": ["name", "wim_url", "wim_type"],
 408     "additionalProperties": False
 409 }
 410
 411 sdn_properties = {
 412     "name": name_schema,
 413     "description": description_schema,
 414     "dpid": dpid_Schema,
 415     "ip": ip_schema,
 416     "port": port_schema,
 417     "type": {"type": "string", "enum": ["opendaylight", "floodlight", "onos"]},
 418     "version": {"type": "string", "minLength": 1, "maxLength": 12},
 419     "user": nameshort_schema,
 420     "password": passwd_schema
 421 }
 422 sdn_new_schema = {
 423     "title": "sdn controller information schema",
 424     "$schema": "http://json-schema.org/draft-04/schema#",
 425     "type": "object",
 426     "properties": sdn_properties,
 427     "required": ["name", "port", 'ip', 'dpid', 'type'],
 428     "additionalProperties": False
 429 }
 430 sdn_edit_schema = {
 431     "title": "sdn controller update information schema",
 432     "$schema": "http://json-schema.org/draft-04/schema#",
 433     "type": "object",
 434     "properties": sdn_properties,
 435     # "required": ["name", "port", 'ip', 'dpid', 'type'],
 436     "additionalProperties": False
 437 }
 438 sdn_port_mapping_schema = {
 439     "$schema": "http://json-schema.org/draft-04/schema#",
 440     "title": "sdn port mapping information schema",
 441     "type": "array",
 442     "items": {
 443         "type": "object",
 444         "properties": {
 445             "compute_node": nameshort_schema,
 446             "ports": {
 447                 "type": "array",
 448                 "items": {
 449                     "type": "object",
 450                     "properties": {
 451                         "pci": pci_extended_schema,
 452                         "switch_port": nameshort_schema,
 453                         "switch_mac": mac_schema
 454                     },
 455                     "required": ["pci"]
 456                 }
 457             }
 458         },
 459         "required": ["compute_node", "ports"]
 460     }
 461 }
 462 sdn_external_port_schema = {
 463     "$schema": "http://json-schema.org/draft-04/schema#",
 464     "title": "External port information",
 465     "type": "object",
 466     "properties": {
 467         "port": {"type": "string", "minLength": 1, "maxLength": 60},
 468         "vlan": vlan_schema,
 469         "mac": mac_schema
 470     },
 471     "required": ["port"]
 472 }
 473
 474 # PDUs
 475 pdu_interface = {
 476     "type": "object",
 477     "properties": {
 478         "name": nameshort_schema,
 479         "mgmt": bool_schema,
 480         "type": {"enum": ["overlay", 'underlay']},
 481         "ip-address": ip_schema,
 482         # TODO, add user, password, ssh-key
 483         "mac-address": mac_schema,
 484         "vim-network-name": nameshort_schema,  # interface is connected to one vim network, or switch port
 485         # TODO "vim-network-id": nameshort_schema,
 486         # # provide this in case SDN assist must deal with this interface
 487         # "switch-dpid": dpid_Schema,
 488         # "switch-port": nameshort_schema,
 489         # "switch-mac": nameshort_schema,
 490         # "switch-vlan": vlan_schema,
 491     },
 492     "required": ["name", "mgmt", "ip-address"],
 493     "additionalProperties": False
 494 }
 495 pdu_new_schema = {
 496     "title": "pdu creation input schema",
 497     "$schema": "http://json-schema.org/draft-04/schema#",
 498     "type": "object",
 499     "properties": {
 500         "name": nameshort_schema,
 501         "type": nameshort_schema,
 502         "description": description_schema,
 503         "shared": bool_schema,
 504         "vims": nameshort_list_schema,
 505         "vim_accounts": nameshort_list_schema,
 506         "interfaces": {
 507             "type": "array",
 508             "items": pdu_interface,
 509             "minItems": 1
 510         }
 511     },
 512     "required": ["name", "type", "interfaces"],
 513     "additionalProperties": False
 514 }
 515
 516 pdu_edit_schema = {
 517     "title": "pdu edit input schema",
 518     "$schema": "http://json-schema.org/draft-04/schema#",
 519     "type": "object",
 520     "properties": {
 521         "name": nameshort_schema,
 522         "type": nameshort_schema,
 523         "description": description_schema,
 524         "shared": bool_schema,
 525         "vims": {"oneOf": [array_edition_schema, nameshort_list_schema]},
 526         "vim_accounts": {"oneOf": [array_edition_schema, nameshort_list_schema]},
 527         "interfaces": {"oneOf": [
 528             array_edition_schema,
 529             {
 530                 "type": "array",
 531                 "items": pdu_interface,
 532                 "minItems": 1
 533             }
 534         ]}
 535     },
 536     "additionalProperties": False,
 537     "minProperties": 1
 538 }
 539
 540 # USERS
 541 user_new_schema = {
 542     "$schema": "http://json-schema.org/draft-04/schema#",
 543     "title": "New user schema",
 544     "type": "object",
 545     "properties": {
 546         "username": nameshort_schema,
 547         "password": passwd_schema,
 548         "projects": nameshort_list_schema,
 549     },
 550     "required": ["username", "password", "projects"],
 551     "additionalProperties": False
 552 }
 553 user_edit_schema = {
 554     "$schema": "http://json-schema.org/draft-04/schema#",
 555     "title": "User edit schema for administrators",
 556     "type": "object",
 557     "properties": {
 558         "password": passwd_schema,
 559         "projects": {
 560             "oneOf": [
 561                 nameshort_list_schema,
 562                 array_edition_schema
 563             ]
 564         },
 565     },
 566     "minProperties": 1,
 567     "additionalProperties": False
 568 }
 569
 570 # PROJECTS
 571 project_new_schema = {
 572     "$schema": "http://json-schema.org/draft-04/schema#",
 573     "title": "New project schema for administrators",
 574     "type": "object",
 575     "properties": {
 576         "name": nameshort_schema,
 577         "admin": bool_schema,
 578     },
 579     "required": ["name"],
 580     "additionalProperties": False
 581 }
 582 project_edit_schema = {
 583     "$schema": "http://json-schema.org/draft-04/schema#",
 584     "title": "Project edit schema for administrators",
 585     "type": "object",
 586     "properties": {
 587         "admin": bool_schema,
 588     },
 589     "additionalProperties": False,
 590     "minProperties": 1
 591 }
 592
 593 # GLOBAL SCHEMAS
 594
 595 nbi_new_input_schemas = {
 596     "users": user_new_schema,
 597     "projects": project_new_schema,
 598     "vim_accounts": vim_account_new_schema,
 599     "sdns": sdn_new_schema,
 600     "ns_instantiate": ns_instantiate,
 601     "ns_action": ns_action,
 602     "ns_scale": ns_scale,
 603     "pdus": pdu_new_schema,
 604 }
 605
 606 nbi_edit_input_schemas = {
 607     "users": user_edit_schema,
 608     "projects": project_edit_schema,
 609     "vim_accounts": vim_account_edit_schema,
 610     "sdns": sdn_edit_schema,
 611     "pdus": pdu_edit_schema,
 612 }
 613
 614 # NETSLICE SCHEMAS
 615 nsi_slice_instantiate = deepcopy(ns_instantiate)
 616 nsi_slice_instantiate["title"] = "netslice subnet instantiation params input schema"
 617 nsi_slice_instantiate["properties"]["id"] = name_schema
 618 del nsi_slice_instantiate["required"]
 619
 620 nsi_vld_instantiate = {
 621     "title": "netslice vld instantiation params input schema",
 622     "$schema": "http://json-schema.org/draft-04/schema#",
 623     "type": "object",
 624     "properties": {
 625         "name": string_schema,
 626         "vim-network-name": {"OneOf": [string_schema, object_schema]},
 627         "ip-profile": object_schema,
 628     },
 629     "required": ["name"],
 630     "additionalProperties": False
 631 }
 632
 633 nsi_instantiate = {
 634     "title": "netslice action instantiate input schema",
 635     "$schema": "http://json-schema.org/draft-04/schema#",
 636     "type": "object",
 637     "properties": {
 638         "lcmOperationType": string_schema,
 639         "nsiInstanceId": id_schema,
 640         "nsiName": name_schema,
 641         "nsiDescription": {"oneOf": [description_schema, {"type": "null"}]},
 642         "nstId": string_schema,
 643         "vimAccountId": id_schema,
 644         "ssh_keys": {"type": "string"},
 645         "nsi_id": id_schema,
 646         "netslice-subnet": {
 647             "type": "array",
 648             "minItems": 1,
 649             "items": nsi_slice_instantiate
 650         },
 651         "netslice-vld": {
 652             "type": "array",
 653             "minItems": 1,
 654             "items": nsi_vld_instantiate
 655         },
 656     },
 657     "required": ["nsiName", "nstId", "vimAccountId"],
 658     "additionalProperties": False
 659 }
 660
 661 nsi_action = {
 662
 663 }
 664
 665 nsi_terminate = {
 666
 667 }
 668
 669
 670 class ValidationError(Exception):
 671     def __init__(self, message, http_code=HTTPStatus.UNPROCESSABLE_ENTITY):
 672         self.http_code = http_code
 673         Exception.__init__(self, message)
 674
 675
 676 def validate_input(indata, schema_to_use):
 677     """
 678     Validates input data against json schema
 679     :param indata: user input data. Should be a dictionary
 680     :param schema_to_use: jsonschema to test
 681     :return: None if ok, raises ValidationError exception on error
 682     """
 683     try:
 684         if schema_to_use:
 685             js_v(indata, schema_to_use)
 686         return None
 687     except js_e.ValidationError as e:
 688         if e.path:
 689             error_pos = "at '" + ":".join(map(str, e.path)) + "'"
 690         else:
 691             error_pos = ""
 692         raise ValidationError("Format error {} '{}' ".format(error_pos, e.message))
 693     except js_e.SchemaError:
 694         raise ValidationError("Bad json schema {}".format(schema_to_use), http_code=HTTPStatus.INTERNAL_SERVER_ERROR)