osm_nbi/validation.py

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