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218 lines
7.5 KiB
218 lines
7.5 KiB
#!/usr/bin/env python
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#
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# Copyright (C) 2016 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import copy
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import uuid
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import json
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import jsonschema
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from gns3server.schemas.cloud_template import CLOUD_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.ethernet_switch_template import ETHERNET_SWITCH_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.ethernet_hub_template import ETHERNET_HUB_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.docker_template import DOCKER_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.vpcs_template import VPCS_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.traceng_template import TRACENG_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.virtualbox_template import VIRTUALBOX_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.vmware_template import VMWARE_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.iou_template import IOU_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.qemu_template import QEMU_TEMPLATE_OBJECT_SCHEMA
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from gns3server.schemas.dynamips_template import (
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DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C7200_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C3745_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C3725_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C3600_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C2691_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C2600_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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C1700_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA
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)
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import logging
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log = logging.getLogger(__name__)
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# Add default values for missing entries in a request, largely taken from jsonschema documentation example
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# https://python-jsonschema.readthedocs.io/en/latest/faq/#why-doesn-t-my-schema-s-default-property-set-the-default-on-my-instance
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def extend_with_default(validator_class):
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validate_properties = validator_class.VALIDATORS["properties"]
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def set_defaults(validator, properties, instance, schema):
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if jsonschema.Draft4Validator(schema).is_valid(instance):
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# only add default for the matching sub-schema (e.g. when using 'oneOf')
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for property, subschema in properties.items():
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if "default" in subschema:
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instance.setdefault(property, subschema["default"])
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for error in validate_properties(validator, properties, instance, schema,):
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yield error
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return jsonschema.validators.extend(
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validator_class, {"properties" : set_defaults},
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)
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ValidatorWithDefaults = extend_with_default(jsonschema.Draft4Validator)
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ID_TO_CATEGORY = {
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3: "firewall",
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2: "guest",
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1: "switch",
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0: "router"
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}
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TEMPLATE_TYPE_TO_SHEMA = {
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"cloud": CLOUD_TEMPLATE_OBJECT_SCHEMA,
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"ethernet_hub": ETHERNET_HUB_TEMPLATE_OBJECT_SCHEMA,
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"ethernet_switch": ETHERNET_SWITCH_TEMPLATE_OBJECT_SCHEMA,
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"docker": DOCKER_TEMPLATE_OBJECT_SCHEMA,
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"dynamips": DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"vpcs": VPCS_TEMPLATE_OBJECT_SCHEMA,
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"traceng": TRACENG_TEMPLATE_OBJECT_SCHEMA,
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"virtualbox": VIRTUALBOX_TEMPLATE_OBJECT_SCHEMA,
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"vmware": VMWARE_TEMPLATE_OBJECT_SCHEMA,
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"iou": IOU_TEMPLATE_OBJECT_SCHEMA,
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"qemu": QEMU_TEMPLATE_OBJECT_SCHEMA
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}
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DYNAMIPS_PLATFORM_TO_SHEMA = {
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"c7200": C7200_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c3745": C3745_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c3725": C3725_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c3600": C3600_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c2691": C2691_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c2600": C2600_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA,
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"c1700": C1700_DYNAMIPS_TEMPLATE_OBJECT_SCHEMA
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}
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class Template:
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def __init__(self, template_id, settings, builtin=False):
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if template_id is None:
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self._id = str(uuid.uuid4())
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elif isinstance(template_id, uuid.UUID):
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self._id = str(template_id)
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else:
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self._id = template_id
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self._settings = copy.deepcopy(settings)
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# Version of the gui before 2.1 use linked_base
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# and the server linked_clone
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if "linked_base" in self.settings:
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linked_base = self._settings.pop("linked_base")
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if "linked_clone" not in self._settings:
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self._settings["linked_clone"] = linked_base
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# Convert old GUI category to text category
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try:
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self._settings["category"] = ID_TO_CATEGORY[self._settings["category"]]
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except KeyError:
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pass
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# The "server" setting has been replaced by "compute_id" setting in version 2.2
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if "server" in self._settings:
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self._settings["compute_id"] = self._settings.pop("server")
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# The "node_type" setting has been replaced by "template_type" setting in version 2.2
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if "node_type" in self._settings:
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self._settings["template_type"] = self._settings.pop("node_type")
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# Remove an old IOU setting
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if self._settings["template_type"] == "iou" and "image" in self._settings:
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del self._settings["image"]
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self._builtin = builtin
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if builtin is False:
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self.validate_and_apply_defaults(TEMPLATE_TYPE_TO_SHEMA[self.template_type])
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if self.template_type == "dynamips":
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# special case for Dynamips to cover all platform types that contain specific settings
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self.validate_and_apply_defaults(DYNAMIPS_PLATFORM_TO_SHEMA[self._settings["platform"]])
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log.debug('Template "{name}" [{id}] loaded'.format(name=self.name, id=self._id))
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@property
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def id(self):
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return self._id
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@property
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def settings(self):
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return self._settings
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@settings.setter
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def settings(self, settings):
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self._settings.update(settings)
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@property
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def name(self):
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return self._settings["name"]
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@property
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def compute_id(self):
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return self._settings["compute_id"]
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@property
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def template_type(self):
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return self._settings["template_type"]
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@property
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def builtin(self):
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return self._builtin
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def update(self, **kwargs):
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from gns3server.controller import Controller
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controller = Controller.instance()
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Controller.instance().check_can_write_config()
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self._settings.update(kwargs)
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controller.notification.controller_emit("template.updated", self.__json__())
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controller.save()
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def validate_and_apply_defaults(self, schema):
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validator = ValidatorWithDefaults(schema)
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try:
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validator.validate(self.__json__())
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except jsonschema.ValidationError as e:
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message = "JSON schema error {}".format(e.message)
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log.error(message)
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log.debug("Input schema: {}".format(json.dumps(schema)))
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raise
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def __json__(self):
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"""
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Template settings.
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"""
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settings = self._settings
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settings.update({"template_id": self._id,
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"builtin": self.builtin})
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if self.builtin:
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# builin templates have compute_id set to None to tell clients
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# to select a compute
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settings["compute_id"] = None
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else:
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settings["compute_id"] = self.compute_id
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return settings
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