mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-29 17:18:55 +00:00
580 lines
22 KiB
Python
580 lines
22 KiB
Python
#!/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 os
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import json
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import copy
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import uuid
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import shutil
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import zipfile
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import aiohttp
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import platform
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import jsonschema
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from ..version import __version__
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from ..schemas.topology import TOPOLOGY_SCHEMA
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from ..schemas import dynamips_vm
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from ..utils.qt import qt_font_to_style
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from ..compute.dynamips import PLATFORMS_DEFAULT_RAM
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import logging
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log = logging.getLogger(__name__)
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GNS3_FILE_FORMAT_REVISION = 6
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def _check_topology_schema(topo):
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try:
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jsonschema.validate(topo, TOPOLOGY_SCHEMA)
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# Check the nodes property against compute schemas
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for node in topo["topology"].get("nodes", []):
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schema = None
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if node["node_type"] == "dynamips":
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schema = copy.deepcopy(dynamips_vm.VM_CREATE_SCHEMA)
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if schema:
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# Properties send to compute but in an other place in topology
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delete_properties = ["name", "node_id"]
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for prop in delete_properties:
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del schema["properties"][prop]
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schema["required"] = [p for p in schema["required"] if p not in delete_properties]
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jsonschema.validate(node.get("properties", {}), schema)
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except jsonschema.ValidationError as e:
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error = "Invalid data in topology file: {} in schema: {}".format(
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e.message,
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json.dumps(e.schema))
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log.critical(error)
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raise aiohttp.web.HTTPConflict(text=error)
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def project_to_topology(project):
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"""
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:return: A dictionnary with the topology ready to dump to a .gns3
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"""
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data = {
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"project_id": project.id,
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"name": project.name,
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"auto_start": project.auto_start,
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"auto_open": project.auto_open,
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"auto_close": project.auto_close,
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"scene_width": project.scene_width,
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"scene_height": project.scene_height,
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"topology": {
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"nodes": [],
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"links": [],
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"computes": [],
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"drawings": []
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},
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"type": "topology",
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"revision": GNS3_FILE_FORMAT_REVISION,
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"version": __version__
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}
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computes = set()
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for node in project.nodes.values():
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computes.add(node.compute)
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data["topology"]["nodes"].append(node.__json__(topology_dump=True))
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for link in project.links.values():
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data["topology"]["links"].append(link.__json__(topology_dump=True))
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for drawing in project.drawings.values():
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data["topology"]["drawings"].append(drawing.__json__(topology_dump=True))
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for compute in computes:
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if hasattr(compute, "__json__"):
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compute = compute.__json__(topology_dump=True)
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if compute["compute_id"] not in ("vm", "local", ):
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data["topology"]["computes"].append(compute)
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_check_topology_schema(data)
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return data
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def load_topology(path):
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"""
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Open a topology file, patch it for last GNS3 release and return it
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"""
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log.debug("Read topology %s", path)
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try:
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with open(path, encoding="utf-8") as f:
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topo = json.load(f)
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except (OSError, UnicodeDecodeError, ValueError) as e:
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raise aiohttp.web.HTTPConflict(text="Could not load topology {}: {}".format(path, str(e)))
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if "revision" not in topo or topo["revision"] < 5:
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# If it's an old GNS3 file we need to convert it
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# first we backup the file
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shutil.copy(path, path + ".backup{}".format(topo.get("revision", 0)))
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topo = _convert_1_3_later(topo, path)
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_check_topology_schema(topo)
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with open(path, "w+", encoding="utf-8") as f:
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json.dump(topo, f, indent=4, sort_keys=True)
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# Version before GNS3 2.0 alpha 4
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if topo["revision"] < 6:
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shutil.copy(path, path + ".backup{}".format(topo.get("revision", 0)))
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topo = _convert_2_0_0_alpha(topo, path)
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_check_topology_schema(topo)
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with open(path, "w+", encoding="utf-8") as f:
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json.dump(topo, f, indent=4, sort_keys=True)
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if topo["revision"] > GNS3_FILE_FORMAT_REVISION:
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raise aiohttp.web.HTTPConflict(text="This project is designed for a more recent version of GNS3 please update GNS3 to version {} or later".format(topo["version"]))
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_check_topology_schema(topo)
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return topo
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def _convert_2_0_0_alpha(topo, topo_path):
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"""
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Convert topologies from GNS3 2.0.0 alpha to 2.0.0 final.
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Changes:
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* No more serial console
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* No more option for VMware / VirtualBox remote console (always use telnet)
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"""
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topo["revision"] = 6
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for node in topo.get("topology", {}).get("nodes", []):
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if node.get("console_type") == "serial":
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node["console_type"] = "telnet"
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if node["node_type"] in ("vmware", "virtualbox"):
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prop = node.get("properties")
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if "enable_remote_console" in prop:
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del prop["enable_remote_console"]
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return topo
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def _convert_1_3_later(topo, topo_path):
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"""
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Convert topologies from 1_3 to the new file format
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Look in tests/topologies/README.rst for instructions to test changes here
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"""
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topo_dir = os.path.dirname(topo_path)
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_convert_snapshots(topo_dir)
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new_topo = {
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"type": "topology",
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"revision": 5,
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"version": __version__,
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"auto_start": topo.get("auto_start", False),
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"name": topo["name"],
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"project_id": topo.get("project_id"),
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"topology": {
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"links": [],
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"drawings": [],
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"computes": [],
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"nodes": []
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}
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}
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if new_topo["project_id"] is None:
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new_topo["project_id"] = str(uuid.uuid4()) # Could arrive for topologues with drawing only
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if "topology" not in topo:
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return new_topo
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topo = topo["topology"]
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# Create computes
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server_id_to_compute_id = {}
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for server in topo.get("servers", []):
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compute = {
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"host": server.get("host", "localhost"),
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"port": server.get("port", 3080),
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"protocol": server.get("protocol", "http")
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}
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if server["local"]:
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compute["compute_id"] = "local"
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compute["name"] = "Local"
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elif server.get("vm", False):
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compute["compute_id"] = "vm"
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compute["name"] = "GNS3 VM"
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else:
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compute["name"] = "Remote {}".format(server["id"])
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compute["compute_id"] = str(uuid.uuid4())
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server_id_to_compute_id[server["id"]] = compute["compute_id"]
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new_topo["topology"]["computes"].append(compute)
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# Create nodes
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ports = {}
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node_id_to_node_uuid = {}
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for old_node in topo.get("nodes", []):
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node = {}
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node["console"] = old_node["properties"].get("console", None)
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node["compute_id"] = server_id_to_compute_id[old_node["server_id"]]
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node["console_type"] = old_node["properties"].get("console_type", "telnet")
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node["name"] = old_node["label"]["text"]
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node["label"] = _convert_label(old_node["label"])
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node["node_id"] = old_node.get("vm_id", str(uuid.uuid4()))
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node["symbol"] = old_node.get("symbol", None)
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# Compatibility with <= 1.3
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if node["symbol"] is None and "default_symbol" in old_node:
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if old_node["default_symbol"].endswith("normal.svg"):
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node["symbol"] = old_node["default_symbol"][:-11] + ".svg"
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else:
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node["symbol"] = old_node["default_symbol"]
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node["x"] = int(old_node["x"])
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node["y"] = int(old_node["y"])
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node["z"] = int(old_node.get("z", 1))
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node["port_name_format"] = old_node.get("port_name_format", "Ethernet{0}")
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node["port_segment_size"] = int(old_node.get("port_segment_size", "0"))
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node["first_port_name"] = old_node.get("first_port_name")
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node["properties"] = {}
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if old_node["type"] == "VPCSDevice":
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node["node_type"] = "vpcs"
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elif old_node["type"] == "QemuVM":
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node = _convert_qemu_node(node, old_node)
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elif old_node["type"] == "DockerVM":
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node["node_type"] = "docker"
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if node["symbol"] is None:
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node["symbol"] = ":/symbols/docker_guest.svg"
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elif old_node["type"] == "ATMSwitch":
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node["node_type"] = "atm_switch"
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node["symbol"] = ":/symbols/atm_switch.svg"
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node["console_type"] = None
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elif old_node["type"] == "EthernetHub":
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node["node_type"] = "ethernet_hub"
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node["console_type"] = None
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node["symbol"] = ":/symbols/hub.svg"
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node["properties"]["ports_mapping"] = []
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for port in old_node["ports"]:
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node["properties"]["ports_mapping"].append({
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"name": "Ethernet{}".format(port["port_number"] - 1),
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"port_number": port["port_number"] - 1
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})
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elif old_node["type"] == "EthernetSwitch":
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node["node_type"] = "ethernet_switch"
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node["symbol"] = ":/symbols/ethernet_switch.svg"
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node["console_type"] = None
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node["properties"]["ports_mapping"] = []
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for port in old_node["ports"]:
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node["properties"]["ports_mapping"].append({
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"name": "Ethernet{}".format(port["port_number"] - 1),
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"port_number": port["port_number"] - 1,
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"type": port["type"],
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"vlan": port["vlan"]
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})
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elif old_node["type"] == "FrameRelaySwitch":
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node["node_type"] = "frame_relay_switch"
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node["symbol"] = ":/symbols/frame_relay_switch.svg"
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node["console_type"] = None
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elif old_node["type"] in ["C1700", "C2600", "C2691", "C3600", "C3725", "C3745", "C7200", "EtherSwitchRouter"]:
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if node["symbol"] is None:
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node["symbol"] = ":/symbols/router.svg"
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node["node_type"] = "dynamips"
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node["properties"]["dynamips_id"] = old_node.get("dynamips_id")
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if "platform" not in node["properties"] and old_node["type"].startswith("C"):
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node["properties"]["platform"] = old_node["type"].lower()
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if "ram" not in node["properties"] and old_node["type"].startswith("C"):
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node["properties"]["ram"] = PLATFORMS_DEFAULT_RAM[old_node["type"].lower()]
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elif old_node["type"] == "VMwareVM":
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node["node_type"] = "vmware"
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if node["symbol"] is None:
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node["symbol"] = ":/symbols/vmware_guest.svg"
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elif old_node["type"] == "VirtualBoxVM":
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node["node_type"] = "virtualbox"
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if node["symbol"] is None:
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node["symbol"] = ":/symbols/vbox_guest.svg"
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elif old_node["type"] == "IOUDevice":
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node["node_type"] = "iou"
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elif old_node["type"] == "Cloud":
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_create_cloud(node, old_node, ":/symbols/cloud.svg")
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elif old_node["type"] == "Host":
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_create_cloud(node, old_node, ":/symbols/computer.svg")
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else:
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raise NotImplementedError("Conversion of {} is not supported".format(old_node["type"]))
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for prop in old_node.get("properties", {}):
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if prop not in ["console", "name", "console_type", "use_ubridge"]:
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node["properties"][prop] = old_node["properties"][prop]
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node_id_to_node_uuid[old_node["id"]] = node["node_id"]
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for port in old_node.get("ports", []):
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ports[port["id"]] = port
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new_topo["topology"]["nodes"].append(node)
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# Create links
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for old_link in topo.get("links", []):
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try:
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nodes = []
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source_node = {
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"adapter_number": ports[old_link["source_port_id"]].get("adapter_number", 0),
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"port_number": ports[old_link["source_port_id"]].get("port_number", 0),
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"node_id": node_id_to_node_uuid[old_link["source_node_id"]]
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}
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nodes.append(source_node)
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destination_node = {
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"adapter_number": ports[old_link["destination_port_id"]].get("adapter_number", 0),
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"port_number": ports[old_link["destination_port_id"]].get("port_number", 0),
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"node_id": node_id_to_node_uuid[old_link["destination_node_id"]]
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}
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nodes.append(destination_node)
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except KeyError:
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continue
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link = {
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"link_id": str(uuid.uuid4()),
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"nodes": nodes
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}
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new_topo["topology"]["links"].append(link)
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# Ellipse
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for ellipse in topo.get("ellipses", []):
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svg = '<svg height="{height}" width="{width}"><ellipse cx="{cx}" cy="{cy}" fill="{fill}" fill-opacity="1.0" rx="{rx}" ry="{ry}" {border_style} /></svg>'.format(
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height=int(ellipse["height"]),
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width=int(ellipse["width"]),
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cx=int(ellipse["width"] / 2),
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cy=int(ellipse["height"] / 2),
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rx=int(ellipse["width"] / 2),
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ry=int(ellipse["height"] / 2),
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fill=ellipse.get("color", "#ffffff"),
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border_style=_convert_border_style(ellipse)
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)
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new_ellipse = {
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"drawing_id": str(uuid.uuid4()),
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"x": int(ellipse["x"]),
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"y": int(ellipse["y"]),
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"z": int(ellipse.get("z", 0)),
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"rotation": int(ellipse.get("rotation", 0)),
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"svg": svg
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}
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new_topo["topology"]["drawings"].append(new_ellipse)
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# Notes
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for note in topo.get("notes", []):
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font_info = note.get("font", "TypeWriter,10,-1,5,75,0,0,0,0,0").split(",")
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if font_info[4] == "75":
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weight = "bold"
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else:
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weight = "normal"
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if font_info[5] == "1":
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style = "italic"
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else:
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style = "normal"
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svg = '<svg height="{height}" width="{width}"><text fill="{fill}" fill-opacity="{opacity}" font-family="{family}" font-size="{size}" font-weight="{weight}" font-style="{style}">{text}</text></svg>'.format(
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height=int(font_info[1]) * 2,
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width=int(font_info[1]) * len(note["text"]),
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fill="#" + note["color"][-6:],
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opacity=round(1.0 / 255 * int(note.get("color", "#ffffffff")[:3][-2:], base=16), 2), # Extract the alpha channel from the hexa version
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family=font_info[0],
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size=int(font_info[1]),
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weight=weight,
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style=style,
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text=note["text"]
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)
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new_note = {
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"drawing_id": str(uuid.uuid4()),
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"x": int(note["x"]),
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"y": int(note["y"]),
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"z": int(note.get("z", 0)),
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"rotation": int(note.get("rotation", 0)),
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"svg": svg
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}
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new_topo["topology"]["drawings"].append(new_note)
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# Images
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for image in topo.get("images", []):
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img_path = image["path"]
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# Absolute image path are rewrite to project specific image
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if os.path.abspath(img_path):
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try:
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os.makedirs(os.path.join(topo_dir, "images"), exist_ok=True)
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shutil.copy(img_path, os.path.join(topo_dir, "images", os.path.basename(img_path)))
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except OSError:
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pass
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new_image = {
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"drawing_id": str(uuid.uuid4()),
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"x": int(image["x"]),
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"y": int(image["y"]),
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"z": int(image.get("z", 0)),
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"rotation": int(image.get("rotation", 0)),
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"svg": os.path.basename(img_path)
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}
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new_topo["topology"]["drawings"].append(new_image)
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# Rectangles
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for rectangle in topo.get("rectangles", []):
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svg = '<svg height="{height}" width="{width}"><rect fill="{fill}" fill-opacity="1.0" height="{height}" width="{width}" {border_style} /></svg>'.format(
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height=int(rectangle["height"]),
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width=int(rectangle["width"]),
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fill=rectangle.get("color", "#ffffff"),
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border_style=_convert_border_style(rectangle)
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)
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new_rectangle = {
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"drawing_id": str(uuid.uuid4()),
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"x": int(rectangle["x"]),
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"y": int(rectangle["y"]),
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"z": int(rectangle.get("z", 0)),
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"rotation": int(rectangle.get("rotation", 0)),
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"svg": svg
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}
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new_topo["topology"]["drawings"].append(new_rectangle)
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# Convert instructions.txt to README.txt
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instructions_path = os.path.join(topo_dir, "instructions.txt")
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readme_path = os.path.join(topo_dir, "README.txt")
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if os.path.exists(instructions_path) and not os.path.exists(readme_path):
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shutil.move(instructions_path, readme_path)
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return new_topo
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def _convert_border_style(element):
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QT_DASH_TO_SVG = {
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2: "25, 25",
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3: "5, 25",
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|
4: "5, 25, 25",
|
|
5: "25, 25, 5, 25, 5"
|
|
}
|
|
border_style = int(element.get("border_style", 0))
|
|
style = ""
|
|
if border_style == 1: # No border
|
|
return ""
|
|
elif border_style == 0:
|
|
pass # Solid line
|
|
else:
|
|
style += 'stroke-dasharray="{}" '.format(QT_DASH_TO_SVG[border_style])
|
|
style += 'stroke="{stroke}" stroke-width="{stroke_width}"'.format(
|
|
stroke=element.get("border_color", "#000000"),
|
|
stroke_width=element.get("border_width", 2)
|
|
)
|
|
return style
|
|
|
|
|
|
def _convert_label(label):
|
|
"""
|
|
Convert a label from 1.X to the new format
|
|
"""
|
|
style = qt_font_to_style(label.get("font"), label.get("color"))
|
|
return {
|
|
"text": label["text"],
|
|
"rotation": 0,
|
|
"style": style,
|
|
"x": int(label["x"]),
|
|
"y": int(label["y"])
|
|
}
|
|
|
|
|
|
def _create_cloud(node, old_node, icon):
|
|
node["node_type"] = "cloud"
|
|
node["symbol"] = icon
|
|
node["console_type"] = None
|
|
node["console"] = None
|
|
del old_node["properties"]["nios"]
|
|
|
|
ports = []
|
|
for old_port in old_node.get("ports", []):
|
|
if old_port["name"].startswith("nio_gen_eth"):
|
|
port_type = "ethernet"
|
|
elif old_port["name"].startswith("nio_gen_linux"):
|
|
port_type = "ethernet"
|
|
elif old_port["name"].startswith("nio_tap"):
|
|
port_type = "tap"
|
|
elif old_port["name"].startswith("nio_udp"):
|
|
port_type = "udp"
|
|
else:
|
|
raise NotImplementedError("The conversion of cloud with {} is not supported".format(old_port["name"]))
|
|
|
|
if port_type == "udp":
|
|
_, lport, rhost, rport = old_port["name"].split(":")
|
|
port = {
|
|
"name": "UDP tunnel {}".format(len(ports) + 1),
|
|
"port_number": len(ports) + 1,
|
|
"type": port_type,
|
|
"lport": int(lport),
|
|
"rhost": rhost,
|
|
"rport": int(rport)
|
|
}
|
|
else:
|
|
port = {
|
|
"interface": old_port["name"].split(":")[1],
|
|
"name": old_port["name"].split(":")[1],
|
|
"port_number": len(ports) + 1,
|
|
"type": port_type
|
|
}
|
|
ports.append(port)
|
|
|
|
node["properties"]["ports_mapping"] = ports
|
|
node["properties"]["interfaces"] = []
|
|
|
|
|
|
def _convert_snapshots(topo_dir):
|
|
"""
|
|
Convert 1.x snapshot to the new format
|
|
"""
|
|
old_snapshots_dir = os.path.join(topo_dir, "project-files", "snapshots")
|
|
if os.path.exists(old_snapshots_dir):
|
|
new_snapshots_dir = os.path.join(topo_dir, "snapshots")
|
|
os.makedirs(new_snapshots_dir)
|
|
|
|
for snapshot in os.listdir(old_snapshots_dir):
|
|
snapshot_dir = os.path.join(old_snapshots_dir, snapshot)
|
|
if os.path.isdir(snapshot_dir):
|
|
is_gns3_topo = False
|
|
|
|
# In .gns3project fileformat the .gns3 should be name project.gns3
|
|
for file in os.listdir(snapshot_dir):
|
|
if file.endswith(".gns3"):
|
|
shutil.move(os.path.join(snapshot_dir, file), os.path.join(snapshot_dir, "project.gns3"))
|
|
is_gns3_topo = True
|
|
|
|
if is_gns3_topo:
|
|
snapshot_arc = os.path.join(new_snapshots_dir, snapshot + ".gns3project")
|
|
with zipfile.ZipFile(snapshot_arc, 'w', allowZip64=True) as myzip:
|
|
for root, dirs, files in os.walk(snapshot_dir):
|
|
for file in files:
|
|
myzip.write(os.path.join(root, file), os.path.relpath(os.path.join(root, file), snapshot_dir), compress_type=zipfile.ZIP_DEFLATED)
|
|
|
|
shutil.rmtree(old_snapshots_dir)
|
|
|
|
|
|
def _convert_qemu_node(node, old_node):
|
|
"""
|
|
Convert qemu node from 1.X to 2.0
|
|
"""
|
|
|
|
# In 2.0 the internet VM is replaced by the NAT node
|
|
if old_node.get("properties", {}).get("hda_disk_image_md5sum") == "8ebc5a6ec53a1c05b7aa101b5ceefe31":
|
|
node["console"] = None
|
|
node["console_type"] = None
|
|
node["node_type"] = "nat"
|
|
del old_node["properties"]
|
|
node["properties"] = {
|
|
"ports": [
|
|
{
|
|
"interface": "eth1",
|
|
"name": "nat0",
|
|
"port_number": 0,
|
|
"type": "ethernet"
|
|
}
|
|
]
|
|
}
|
|
if node["symbol"] is None:
|
|
node["symbol"] = ":/symbols/cloud.svg"
|
|
return node
|
|
|
|
node["node_type"] = "qemu"
|
|
if node["symbol"] is None:
|
|
node["symbol"] = ":/symbols/qemu_guest.svg"
|
|
return node
|