mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-22 06:07:51 +00:00
692 lines
24 KiB
Python
692 lines
24 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 aiohttp
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import asyncio
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import html
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import copy
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import uuid
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import os
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from .compute import ComputeConflict, ComputeError
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from .ports.port_factory import PortFactory, StandardPortFactory, DynamipsPortFactory
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from ..utils.images import images_directories
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from ..utils.qt import qt_font_to_style
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import logging
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log = logging.getLogger(__name__)
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class Node:
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# This properties are used only on controller and are not forwarded to the compute
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CONTROLLER_ONLY_PROPERTIES = ["x", "y", "z", "width", "height", "symbol", "label", "console_host",
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"port_name_format", "first_port_name", "port_segment_size", "ports",
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"category"]
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def __init__(self, project, compute, name, node_id=None, node_type=None, **kwargs):
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"""
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:param project: Project of the node
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:param compute: Compute server where the server will run
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:param name: Node name
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:param node_id: UUID of the node (integer)
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:param node_type: Type of emulator
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:param kwargs: Node properties
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"""
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assert node_type
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if node_id is None:
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self._id = str(uuid.uuid4())
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else:
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self._id = node_id
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self._project = project
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self._compute = compute
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self._node_type = node_type
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self._label = None
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self._links = set()
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self._name = None
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self.name = name
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self._console = None
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self._console_type = None
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self._properties = None
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self._command_line = None
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self._node_directory = None
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self._status = "stopped"
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self._x = 0
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self._y = 0
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self._z = 0
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self._ports = None
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self._symbol = None
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if node_type == "iou":
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self._port_name_format = "Ethernet{segment0}/{port0}"
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self._port_by_adapter = 4
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self.port_segment_size = 4
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else:
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self._port_name_format = "Ethernet{0}"
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self._port_by_adapter = 1
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self._port_segment_size = 0
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self._first_port_name = None
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# This properties will be recompute
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ignore_properties = ("width", "height", "hover_symbol")
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self.properties = kwargs.pop('properties', {})
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# Update node properties with additional elements
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for prop in kwargs:
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if prop not in ignore_properties:
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if hasattr(self, prop):
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try:
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setattr(self, prop, kwargs[prop])
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except AttributeError as e:
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log.critical("Can't set attribute %s", prop)
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raise e
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else:
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if prop not in self.CONTROLLER_ONLY_PROPERTIES and kwargs[prop] is not None and kwargs[prop] != "":
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self.properties[prop] = kwargs[prop]
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if self._symbol is None:
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# compatibility with old node templates
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if "default_symbol" in self.properties:
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default_symbol = self.properties.pop("default_symbol")
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if default_symbol.endswith("normal.svg"):
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self.symbol = default_symbol[:-11] + ".svg"
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else:
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self.symbol = default_symbol
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else:
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self.symbol = ":/symbols/router.svg"
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def is_always_running(self):
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"""
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:returns: Boolean True if the node is always running
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like ethernet switch
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"""
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return self.node_type not in (
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"qemu", "docker", "dynamips",
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"vpcs", "vmware", "virtualbox",
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"iou")
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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 status(self):
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return self._status
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@property
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def name(self):
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return self._name
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@name.setter
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def name(self, new_name):
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self._name = self._project.update_node_name(self, new_name)
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# The text in label need to be always the node name
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if self.label and self._label["text"] != self._name:
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self._label["text"] = self._name
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self._label["x"] = None # Center text
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@property
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def node_type(self):
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return self._node_type
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@property
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def console(self):
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return self._console
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@console.setter
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def console(self, val):
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self._console = val
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@property
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def console_type(self):
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return self._console_type
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@console_type.setter
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def console_type(self, val):
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self._console_type = val
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@property
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def properties(self):
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return self._properties
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@properties.setter
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def properties(self, val):
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self._properties = val
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def _base_config_file_content(self, path):
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if not os.path.isabs(path):
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path = os.path.join(self.project.controller.configs_path(), path)
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try:
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with open(path) as f:
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return f.read()
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except (PermissionError, OSError):
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return None
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@property
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def project(self):
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return self._project
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@property
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def compute(self):
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return self._compute
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@property
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def host(self):
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"""
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:returns: Domain or ip for console connection
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"""
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return self._compute.host
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@property
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def ports(self):
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if self._ports is None:
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self._list_ports()
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return self._ports
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@property
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def x(self):
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return self._x
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@x.setter
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def x(self, val):
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self._x = val
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@property
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def y(self):
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return self._y
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@y.setter
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def y(self, val):
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self._y = val
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@property
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def z(self):
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return self._z
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@z.setter
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def z(self, val):
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self._z = val
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@property
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def width(self):
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return self._width
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@property
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def height(self):
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return self._height
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@property
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def symbol(self):
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return self._symbol
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@symbol.setter
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def symbol(self, val):
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if val is None:
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val = ":/symbols/computer.svg"
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# No abs path, fix them (bug of 1.X)
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try:
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if not val.startswith(":") and os.path.abspath(val):
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val = os.path.basename(val)
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except OSError:
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pass
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self._symbol = val
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try:
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self._width, self._height, filetype = self._project.controller.symbols.get_size(val)
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# If symbol is invalid we replace it by default
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except (ValueError, OSError):
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self.symbol = ":/symbols/computer.svg"
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if self._label is None:
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# Apply to label user style or default
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try:
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style = qt_font_to_style(
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self._project.controller.settings["GraphicsView"]["default_label_font"],
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self._project.controller.settings["GraphicsView"]["default_label_color"])
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except KeyError:
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style = "font-size: 10;font-familly: Verdana"
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self._label = {
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"y": round(self._height / 2 + 10) * -1,
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"text": html.escape(self._name),
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"style": style,
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"x": None, # None: mean the client should center it
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"rotation": 0
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}
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@property
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def label(self):
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return self._label
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@label.setter
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def label(self, val):
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# The text in label need to be always the node name
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val["text"] = self._name
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self._label = val
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@property
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def port_name_format(self):
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return self._port_name_format
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@port_name_format.setter
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def port_name_format(self, val):
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self._port_name_format = val
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@property
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def port_segment_size(self):
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return self._port_segment_size
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@port_segment_size.setter
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def port_segment_size(self, val):
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self._port_segment_size = val
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@property
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def first_port_name(self):
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return self._first_port_name
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@first_port_name.setter
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def first_port_name(self, val):
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self._first_port_name = val
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def add_link(self, link):
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"""
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A link is connected to the node
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"""
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self._links.add(link)
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def remove_link(self, link):
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"""
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A link is connected to the node
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"""
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self._links.remove(link)
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@property
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def link(self):
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return self._links
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@asyncio.coroutine
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def create(self):
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"""
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Create the node on the compute server
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"""
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data = self._node_data()
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data["node_id"] = self._id
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if self._node_type == "docker":
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timeout = None
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else:
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timeout = 1200
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trial = 0
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while trial != 6:
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try:
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response = yield from self._compute.post("/projects/{}/{}/nodes".format(self._project.id, self._node_type), data=data, timeout=timeout)
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except ComputeConflict as e:
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if e.response.get("exception") == "ImageMissingError":
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res = yield from self._upload_missing_image(self._node_type, e.response["image"])
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if not res:
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raise e
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else:
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raise e
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else:
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yield from self.parse_node_response(response.json)
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return True
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trial += 1
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@asyncio.coroutine
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def update(self, **kwargs):
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"""
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Update the node on the compute server
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:param kwargs: Node properties
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"""
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# When updating properties used only on controller we don't need to call the compute
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update_compute = False
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old_json = self.__json__()
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compute_properties = None
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# Update node properties with additional elements
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for prop in kwargs:
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if getattr(self, prop) != kwargs[prop]:
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if prop not in self.CONTROLLER_ONLY_PROPERTIES:
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update_compute = True
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# We update properties on the compute and wait for the anwser from the compute node
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if prop == "properties":
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compute_properties = kwargs[prop]
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else:
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setattr(self, prop, kwargs[prop])
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self._list_ports()
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# We send notif only if object has changed
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if old_json != self.__json__():
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self.project.controller.notification.emit("node.updated", self.__json__())
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if update_compute:
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data = self._node_data(properties=compute_properties)
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response = yield from self.put(None, data=data)
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yield from self.parse_node_response(response.json)
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self.project.dump()
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@asyncio.coroutine
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def parse_node_response(self, response):
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"""
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Update the object with the remote node object
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"""
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for key, value in response.items():
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if key == "console":
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self._console = value
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elif key == "node_directory":
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self._node_directory = value
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elif key == "command_line":
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self._command_line = value
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elif key == "status":
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self._status = value
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elif key == "console_type":
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self._console_type = value
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elif key == "name":
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self.name = value
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elif key in ["node_id", "project_id", "console_host",
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"startup_config_content",
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"private_config_content",
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"startup_script"]:
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if key in self._properties:
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del self._properties[key]
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else:
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self._properties[key] = value
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self._list_ports()
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for link in self._links:
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yield from link.node_updated(self)
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def _node_data(self, properties=None):
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"""
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Prepare node data to send to the remote controller
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:param properties: If properties is None use actual property otherwise use the parameter
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"""
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if properties:
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data = copy.copy(properties)
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else:
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data = copy.copy(self._properties)
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# We replace the startup script name by the content of the file
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mapping = {
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"base_script_file": "startup_script",
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"startup_config": "startup_config_content",
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"private_config": "private_config_content",
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}
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for k, v in mapping.items():
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if k in list(self._properties.keys()):
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data[v] = self._base_config_file_content(self._properties[k])
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del data[k]
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del self._properties[k] # We send the file only one time
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data["name"] = self._name
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if self._console:
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# console is optional for builtin nodes
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data["console"] = self._console
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if self._console_type:
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data["console_type"] = self._console_type
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# None properties are not be send. Because it can mean the emulator doesn't support it
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for key in list(data.keys()):
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if data[key] is None or data[key] is {} or key in self.CONTROLLER_ONLY_PROPERTIES:
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del data[key]
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return data
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@asyncio.coroutine
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def destroy(self):
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yield from self.delete()
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@asyncio.coroutine
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def start(self):
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"""
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Start a node
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"""
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try:
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# For IOU we need to send the licence everytime
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if self.node_type == "iou":
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try:
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licence = self._project.controller.settings["IOU"]["iourc_content"]
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except KeyError:
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raise aiohttp.web.HTTPConflict(text="IOU licence is not configured")
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yield from self.post("/start", timeout=240, data={"iourc_content": licence})
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else:
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yield from self.post("/start", timeout=240)
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except asyncio.TimeoutError:
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raise aiohttp.web.HTTPRequestTimeout(text="Timeout when starting {}".format(self._name))
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@asyncio.coroutine
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def stop(self):
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"""
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Stop a node
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"""
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try:
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yield from self.post("/stop", timeout=240, dont_connect=True)
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# We don't care if a node is down at this step
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except (ComputeError, aiohttp.ClientError, aiohttp.web.HTTPError):
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pass
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except asyncio.TimeoutError:
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raise aiohttp.web.HTTPRequestTimeout(text="Timeout when stopping {}".format(self._name))
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@asyncio.coroutine
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def suspend(self):
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"""
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Suspend a node
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"""
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try:
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yield from self.post("/suspend", timeout=240)
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except asyncio.TimeoutError:
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raise aiohttp.web.HTTPRequestTimeout(text="Timeout when reloading {}".format(self._name))
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@asyncio.coroutine
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def reload(self):
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"""
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Suspend a node
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"""
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try:
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yield from self.post("/reload", timeout=240)
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except asyncio.TimeoutError:
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raise aiohttp.web.HTTPRequestTimeout(text="Timeout when reloading {}".format(self._name))
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@asyncio.coroutine
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def post(self, path, data=None, **kwargs):
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"""
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HTTP post on the node
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"""
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if data:
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return (yield from self._compute.post("/projects/{}/{}/nodes/{}{}".format(self._project.id, self._node_type, self._id, path), data=data, **kwargs))
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else:
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return (yield from self._compute.post("/projects/{}/{}/nodes/{}{}".format(self._project.id, self._node_type, self._id, path), **kwargs))
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@asyncio.coroutine
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def put(self, path, data=None, **kwargs):
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"""
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HTTP post on the node
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"""
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if path is None:
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path = "/projects/{}/{}/nodes/{}".format(self._project.id, self._node_type, self._id)
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else:
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path = "/projects/{}/{}/nodes/{}{}".format(self._project.id, self._node_type, self._id, path)
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if data:
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return (yield from self._compute.put(path, data=data, **kwargs))
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else:
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return (yield from self._compute.put(path, **kwargs))
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@asyncio.coroutine
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def delete(self, path=None, **kwargs):
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"""
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HTTP post on the node
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"""
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if path is None:
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return (yield from self._compute.delete("/projects/{}/{}/nodes/{}".format(self._project.id, self._node_type, self._id), **kwargs))
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else:
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return (yield from self._compute.delete("/projects/{}/{}/nodes/{}{}".format(self._project.id, self._node_type, self._id, path), **kwargs))
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@asyncio.coroutine
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def _upload_missing_image(self, type, img):
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"""
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Search an image on local computer and upload it to remote compute
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if the image exists
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"""
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for directory in images_directories(type):
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image = os.path.join(directory, img)
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if os.path.exists(image):
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self.project.controller.notification.emit("log.info", {"message": "Uploading missing image {}".format(img)})
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try:
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with open(image, 'rb') as f:
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yield from self._compute.post("/{}/images/{}".format(self._node_type, os.path.basename(img)), data=f, timeout=None)
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except OSError as e:
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raise aiohttp.web.HTTPConflict(text="Can't upload {}: {}".format(image, str(e)))
|
|
self.project.controller.notification.emit("log.info", {"message": "Upload finished for {}".format(img)})
|
|
return True
|
|
return False
|
|
|
|
@asyncio.coroutine
|
|
def dynamips_auto_idlepc(self):
|
|
"""
|
|
Compute the idle PC for a dynamips node
|
|
"""
|
|
return (yield from self._compute.get("/projects/{}/{}/nodes/{}/auto_idlepc".format(self._project.id, self._node_type, self._id), timeout=240)).json
|
|
|
|
@asyncio.coroutine
|
|
def dynamips_idlepc_proposals(self):
|
|
"""
|
|
Compute a list of potential idle PC
|
|
"""
|
|
return (yield from self._compute.get("/projects/{}/{}/nodes/{}/idlepc_proposals".format(self._project.id, self._node_type, self._id), timeout=240)).json
|
|
|
|
def get_port(self, adapter_number, port_number):
|
|
"""
|
|
Return the port for this adapter_number and port_number
|
|
or raise an HTTPNotFound
|
|
"""
|
|
for port in self.ports:
|
|
if port.adapter_number == adapter_number and port.port_number == port_number:
|
|
return port
|
|
raise aiohttp.web.HTTPNotFound(text="Port {}/{} for {} not found".format(adapter_number, port_number, self.name))
|
|
|
|
def _list_ports(self):
|
|
"""
|
|
Generate the list of port display in the client
|
|
if the compute has sent a list we return it (use by
|
|
node where you can not personnalize the port naming).
|
|
"""
|
|
self._ports = []
|
|
# Some special cases
|
|
if self._node_type == "atm_switch":
|
|
atm_port = set()
|
|
# Mapping is like {"1:0:100": "10:0:200"}
|
|
for source, dest in self._properties["mappings"].items():
|
|
atm_port.add(int(source.split(":")[0]))
|
|
atm_port.add(int(dest.split(":")[0]))
|
|
atm_port = sorted(atm_port)
|
|
for port in atm_port:
|
|
self._ports.append(PortFactory("{}".format(port), 0, 0, port, "atm"))
|
|
return
|
|
|
|
elif self._node_type == "frame_relay_switch":
|
|
frame_relay_port = set()
|
|
# Mapping is like {"1:101": "10:202"}
|
|
for source, dest in self._properties["mappings"].items():
|
|
frame_relay_port.add(int(source.split(":")[0]))
|
|
frame_relay_port.add(int(dest.split(":")[0]))
|
|
frame_relay_port = sorted(frame_relay_port)
|
|
for port in frame_relay_port:
|
|
self._ports.append(PortFactory("{}".format(port), 0, 0, port, "frame_relay"))
|
|
return
|
|
elif self._node_type == "dynamips":
|
|
self._ports = DynamipsPortFactory(self._properties)
|
|
return
|
|
elif self._node_type == "docker":
|
|
for adapter_number in range(0, self._properties["adapters"]):
|
|
self._ports.append(PortFactory("eth{}".format(adapter_number), 0, adapter_number, 0, "ethernet", short_name="eth{}".format(adapter_number)))
|
|
elif self._node_type in ("ethernet_switch", "ethernet_hub"):
|
|
# Basic node we don't want to have adapter number
|
|
port_number = 0
|
|
for port in self._properties["ports_mapping"]:
|
|
self._ports.append(PortFactory(port["name"], 0, 0, port_number, "ethernet", short_name="e{}".format(port_number)))
|
|
port_number += 1
|
|
elif self._node_type in ("vpcs"):
|
|
self._ports.append(PortFactory("Ethernet0", 0, 0, 0, "ethernet", short_name="e0"))
|
|
elif self._node_type in ("cloud", "nat"):
|
|
port_number = 0
|
|
for port in self._properties["ports_mapping"]:
|
|
self._ports.append(PortFactory(port["name"], 0, 0, port_number, "ethernet", short_name=port["name"]))
|
|
port_number += 1
|
|
else:
|
|
self._ports = StandardPortFactory(self._properties, self._port_by_adapter, self._first_port_name, self._port_name_format, self._port_segment_size)
|
|
|
|
def __repr__(self):
|
|
return "<gns3server.controller.Node {} {}>".format(self._node_type, self._name)
|
|
|
|
def __eq__(self, other):
|
|
if not isinstance(other, Node):
|
|
return False
|
|
return self.id == other.id and other.project.id == self.project.id
|
|
|
|
def __json__(self, topology_dump=False):
|
|
"""
|
|
:param topology_dump: Filter to keep only properties require for saving on disk
|
|
"""
|
|
if topology_dump:
|
|
return {
|
|
"compute_id": str(self._compute.id),
|
|
"node_id": self._id,
|
|
"node_type": self._node_type,
|
|
"name": self._name,
|
|
"console": self._console,
|
|
"console_type": self._console_type,
|
|
"properties": self._properties,
|
|
"label": self._label,
|
|
"x": self._x,
|
|
"y": self._y,
|
|
"z": self._z,
|
|
"width": self._width,
|
|
"height": self._height,
|
|
"symbol": self._symbol,
|
|
"port_name_format": self._port_name_format,
|
|
"port_segment_size": self._port_segment_size,
|
|
"first_port_name": self._first_port_name
|
|
}
|
|
return {
|
|
"compute_id": str(self._compute.id),
|
|
"project_id": self._project.id,
|
|
"node_id": self._id,
|
|
"node_type": self._node_type,
|
|
"node_directory": self._node_directory,
|
|
"name": self._name,
|
|
"console": self._console,
|
|
"console_host": str(self._compute.console_host),
|
|
"console_type": self._console_type,
|
|
"command_line": self._command_line,
|
|
"properties": self._properties,
|
|
"status": self._status,
|
|
"label": self._label,
|
|
"x": self._x,
|
|
"y": self._y,
|
|
"z": self._z,
|
|
"width": self._width,
|
|
"height": self._height,
|
|
"symbol": self._symbol,
|
|
"port_name_format": self._port_name_format,
|
|
"port_segment_size": self._port_segment_size,
|
|
"first_port_name": self._first_port_name,
|
|
"ports": [port.__json__() for port in self.ports]
|
|
}
|