mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-23 22:52:25 +00:00
480 lines
19 KiB
Python
480 lines
19 KiB
Python
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2015 GNS3 Technologies Inc.
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import locale
|
|
import re
|
|
import os
|
|
import sys
|
|
import time
|
|
import subprocess
|
|
import configparser
|
|
from json import loads as convert
|
|
import urllib.request
|
|
from dialog import Dialog, PythonDialogBug
|
|
|
|
|
|
class Welcome_dialog:
|
|
def __init__(self):
|
|
try:
|
|
locale.setlocale(locale.LC_ALL, '')
|
|
except locale.Error:
|
|
# Not supported via SSH
|
|
pass
|
|
self.display = Dialog(dialog="dialog", autowidgetsize=True)
|
|
if self.gns3_version() is None:
|
|
self.display.set_background_title("GNS3")
|
|
else:
|
|
self.display.set_background_title("GNS3 {}".format(self.gns3_version()))
|
|
|
|
def get_ip(self):
|
|
"""
|
|
Return the active IP
|
|
"""
|
|
#request 'ip addr' data in JSON format from shell
|
|
ip_addr_response = subprocess.run(['ip', '--json', 'addr'],capture_output=True)
|
|
|
|
#process response, decode and use json.loads to convert the string to a dict
|
|
ip_addr_data = convert(ip_addr_response.stdout.decode("utf-8"))
|
|
|
|
#search ip_addr_data for the first ip adress that is not under a virtual bridge or loopback interface
|
|
for i in ip_addr_data:
|
|
if ('virbr' in i['ifname']) or ('lo' in i['ifname']):
|
|
continue
|
|
try:
|
|
if 'UP' in i['flags']:
|
|
ip_addr = i['addr_info'][0]['local']
|
|
break
|
|
except:
|
|
continue
|
|
ip_addr = None
|
|
|
|
return ip_addr
|
|
|
|
def repair_remote_install(self):
|
|
"""
|
|
This method is only called by remote-install.sh during setup to ensure it is setting the same IP as shown by Dialog
|
|
"""
|
|
ip_addr = self.get_ip()
|
|
subprocess.run(["sed", "-i", f"s/host = 0.0.0.0/host = {ip_addr}/", "/etc/gns3/gns3_server.conf"],capture_output=False)
|
|
subprocess.run(["service", "gns3", "stop"],capture_output=False)
|
|
subprocess.run(["service", "gns3", "start"],capture_output=False)
|
|
|
|
|
|
def get_config(self):
|
|
"""
|
|
Read the config
|
|
"""
|
|
config = configparser.RawConfigParser()
|
|
path = os.path.expanduser("~/.config/GNS3/gns3_server.conf")
|
|
config.read([path], encoding="utf-8")
|
|
return config
|
|
|
|
|
|
def write_config(self, config):
|
|
"""
|
|
Write the config file
|
|
"""
|
|
|
|
with open(os.path.expanduser("~/.config/GNS3/gns3_server.conf"), 'w') as f:
|
|
config.write(f)
|
|
|
|
|
|
def gns3_major_version(self):
|
|
"""
|
|
Returns the GNS3 major server version
|
|
"""
|
|
|
|
version = self.gns3_version()
|
|
if version:
|
|
match = re.search(r"\d+.\d+", version)
|
|
return match.group(0)
|
|
return ""
|
|
|
|
|
|
def gns3_version(self):
|
|
"""
|
|
Return the GNS3 server version
|
|
"""
|
|
try:
|
|
return subprocess.check_output(["gns3server", "--version"]).strip().decode()
|
|
except (subprocess.CalledProcessError, FileNotFoundError):
|
|
return None
|
|
|
|
|
|
def gns3vm_version(self):
|
|
"""
|
|
Return the GNS3 VM version
|
|
"""
|
|
try:
|
|
with open('/home/gns3/.config/GNS3/gns3vm_version') as f:
|
|
return f.read().strip()
|
|
except FileNotFoundError:
|
|
return "Remote Install"
|
|
|
|
|
|
def mode(self):
|
|
if self.display.yesno("This feature is for testers only. You may break your GNS3 installation. Are you REALLY sure you want to continue?", yes_label="Exit (Safe option)", no_label="Continue") == self.display.OK:
|
|
return
|
|
code, tag = self.display.menu("Select the GNS3 version",
|
|
choices=[("2.1", "Stable release for this GNS3 VM (RECOMMENDED)"),
|
|
("2.1dev", "Development version for stable release"),
|
|
("2.2", "Latest stable release")])
|
|
self.display.clear()
|
|
if code == Dialog.OK:
|
|
os.makedirs(os.path.expanduser("~/.config/GNS3"), exist_ok=True)
|
|
with open(os.path.expanduser("~/.config/GNS3/gns3_release"), "w+") as f:
|
|
f.write(tag)
|
|
|
|
self.update(force=True)
|
|
|
|
|
|
def get_release(self):
|
|
try:
|
|
with open(os.path.expanduser("~/.config/GNS3/gns3_release")) as f:
|
|
content = f.read()
|
|
|
|
# Support old VM versions
|
|
if content == "stable":
|
|
content = "1.5"
|
|
elif content == "testing":
|
|
content = "1.5"
|
|
elif content == "unstable":
|
|
content = "1.5dev"
|
|
|
|
return content
|
|
except OSError:
|
|
return "1.5"
|
|
|
|
|
|
def update(self, force=False):
|
|
if not force:
|
|
if self.display.yesno("PLEASE SNAPSHOT THE VM BEFORE RUNNING THE UPGRADE IN CASE OF FAILURE. The server will reboot at the end of the upgrade process. Continue?") != self.display.OK:
|
|
return
|
|
release = self.get_release()
|
|
if release == "2.2":
|
|
if self.display.yesno("It is recommended to run GNS3 version 2.2 with lastest GNS3 VM based on Ubuntu 18.04 LTS, please download this VM from our website or continue at your own risk!") != self.display.OK:
|
|
return
|
|
if release.endswith("dev"):
|
|
ret = os.system("curl -Lk https://raw.githubusercontent.com/GNS3/gns3-vm/unstable/scripts/update_{}.sh > /tmp/update.sh && bash -x /tmp/update.sh".format(release))
|
|
else:
|
|
ret = os.system("curl -Lk https://raw.githubusercontent.com/GNS3/gns3-vm/master/scripts/update_{}.sh > /tmp/update.sh && bash -x /tmp/update.sh".format(release))
|
|
if ret != 0:
|
|
print("ERROR DURING UPGRADE PROCESS PLEASE TAKE A SCREENSHOT IF YOU NEED SUPPORT")
|
|
time.sleep(15)
|
|
|
|
|
|
def migrate(self):
|
|
"""
|
|
Migrate GNS3 VM data.
|
|
"""
|
|
|
|
code, option = self.display.menu("Select an option",
|
|
choices=[("Setup", "Configure this VM to send data to another GNS3 VM"),
|
|
("Send", "Send images and projects to another GNS3 VM")])
|
|
self.display.clear()
|
|
if code == Dialog.OK:
|
|
(answer, destination) = self.display.inputbox("What is IP address or hostname of the other GNS3 VM?", init="172.16.1.128")
|
|
if answer != self.display.OK:
|
|
return
|
|
if destination == self.get_ip():
|
|
self.display.msgbox("The destination cannot be the same as this VM IP address ({})".format(destination))
|
|
return
|
|
if option == "Send":
|
|
# first make sure they are no files belonging to root
|
|
os.system("sudo chown -R gns3:gns3 /opt/gns3")
|
|
# then rsync the data
|
|
command = r"rsync -az --progress -e 'ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i /home/gns3/.ssh/gns3-vm-key' /opt/gns3 gns3@{}:/opt".format(destination)
|
|
ret = os.system('bash -c "{}"'.format(command))
|
|
time.sleep(10)
|
|
if ret != 0:
|
|
self.display.msgbox("Could not send data to the other GNS3 VM located at {}".format(destination))
|
|
else:
|
|
self.display.msgbox("Images and projects have been successfully sent to the other GNS3 VM located at {}".format(destination))
|
|
elif option == "Setup":
|
|
script = """
|
|
if [ ! -f ~/.ssh/gns3-vm-key ]
|
|
then
|
|
ssh-keygen -f ~/.ssh/gns3-vm-key -N '' -C gns3@{}
|
|
fi
|
|
ssh-copy-id -i ~/.ssh/gns3-vm-key gns3@{}
|
|
""".format(self.get_ip(), destination)
|
|
ret = os.system('bash -c "{}"'.format(script))
|
|
time.sleep(10)
|
|
if ret != 0:
|
|
self.display.msgbox("Error while setting up the migrate feature")
|
|
else:
|
|
self.display.msgbox("Configuration successful, you can now send data to the GNS3 VM located at {} without password".format(destination))
|
|
|
|
|
|
def shrink_disk(self):
|
|
|
|
ret = os.system("lspci | grep -i vmware")
|
|
if ret != 0:
|
|
self.display.msgbox("Shrinking the disk is only supported when running inside VMware")
|
|
return
|
|
|
|
if self.display.yesno("Would you like to shrink the VM disk? The VM will reboot at the end of the process. Continue?") != self.display.OK:
|
|
return
|
|
|
|
os.system("sudo service gns3 stop")
|
|
os.system("sudo service docker stop")
|
|
os.system("sudo vmware-toolbox-cmd disk shrink /opt")
|
|
os.system("sudo vmware-toolbox-cmd disk shrink /")
|
|
|
|
self.display.msgbox("The GNS3 VM will reboot")
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
|
|
def vm_information(self):
|
|
"""
|
|
Show IP, SSH settings....
|
|
"""
|
|
|
|
content = "Welcome to GNS3 appliance\n\n"
|
|
|
|
version = self.gns3_version()
|
|
if version is None:
|
|
content += "GNS3 is not installed please install it with sudo pip3 install gns3-server. Or download a preinstalled VM.\n\n"
|
|
else:
|
|
content = "GNS3 version: {gns3_version}\nVM version: {gns3vm_version}\nKVM support available: {kvm}\n\n".format(
|
|
gns3vm_version=self.gns3vm_version(),
|
|
gns3_version=version,
|
|
kvm=self.kvm_support())
|
|
|
|
ip = self.get_ip()
|
|
|
|
if ip:
|
|
content += f"""
|
|
IP: {ip}
|
|
Web UI: http://{ip}:3080
|
|
|
|
To log in using SSH:
|
|
ssh gns3@{ip}
|
|
Password: gns3
|
|
|
|
Images and projects are located in /opt/gns3
|
|
""".strip()
|
|
|
|
else:
|
|
content += "eth0 is not configured. Please manually configure it via the Networking menu."
|
|
|
|
content += "\n\nRelease channel: " + self.get_release()
|
|
|
|
try:
|
|
self.display.msgbox(content)
|
|
# If it's an scp command or any bugs
|
|
except:
|
|
os.execvp("bash", ['/bin/bash'])
|
|
|
|
|
|
def check_internet_connectivity(self):
|
|
self.display.pause("Please wait...\n\n")
|
|
try:
|
|
response = urllib.request.urlopen('http://pypi.python.org/', timeout=5)
|
|
except urllib.request.URLError as err:
|
|
self.display.infobox("Can't connect to Internet (pypi.python.org): {}".format(str(err)))
|
|
time.sleep(15)
|
|
return
|
|
self.display.infobox("Connection to Internet: OK")
|
|
time.sleep(2)
|
|
|
|
|
|
def keyboard_configuration():
|
|
"""
|
|
Allow user to change the keyboard layout
|
|
"""
|
|
os.system("/usr/bin/sudo dpkg-reconfigure keyboard-configuration")
|
|
|
|
|
|
def set_security(self):
|
|
config = self.get_config()
|
|
if self.display.yesno("Enable server authentication?") == self.display.OK:
|
|
if not config.has_section("Server"):
|
|
config.add_section("Server")
|
|
config.set("Server", "auth", True)
|
|
(answer, text) = self.display.inputbox("Login?")
|
|
if answer != self.display.OK:
|
|
return
|
|
config.set("Server", "user", text)
|
|
(answer, text) = self.display.passwordbox("Password?")
|
|
if answer != self.display.OK:
|
|
return
|
|
config.set("Server", "password", text)
|
|
else:
|
|
config.set("Server", "auth", False)
|
|
|
|
self.write_config(config)
|
|
|
|
|
|
def log(self):
|
|
os.system("/usr/bin/sudo chmod 755 /var/log/upstart/gns3.log")
|
|
with open("/var/log/upstart/gns3.log") as f:
|
|
try:
|
|
while True:
|
|
line = f.readline()
|
|
sys.stdout.write(line)
|
|
except (KeyboardInterrupt, MemoryError):
|
|
return
|
|
|
|
|
|
def edit_config(self):
|
|
"""
|
|
Edit GNS3 configuration file
|
|
"""
|
|
|
|
major_version = self.gns3_major_version()
|
|
if major_version == "2.2":
|
|
os.system("nano ~/.config/GNS3/{}/gns3_server.conf".format(major_version))
|
|
else:
|
|
os.system("nano ~/.config/GNS3/gns3_server.conf")
|
|
|
|
|
|
def edit_network(self):
|
|
"""
|
|
Edit network configuration file
|
|
"""
|
|
if self.display.yesno("The server will reboot at the end of the process. Continue?") != self.display.OK:
|
|
return
|
|
os.system("sudo nano /etc/network/interfaces")
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
|
|
|
|
def edit_proxy(self):
|
|
"""
|
|
Configure proxy settings
|
|
"""
|
|
res, http_proxy = self.display.inputbox(text="HTTP proxy string, for example http://<user>:<password>@<proxy>:<port>. Leave empty for no proxy.")
|
|
if res != self.display.OK:
|
|
return
|
|
res, https_proxy = self.display.inputbox(text="HTTPS proxy string, for example http://<user>:<password>@<proxy>:<port>. Leave empty for no proxy.")
|
|
if res != self.display.OK:
|
|
return
|
|
|
|
with open('/tmp/00proxy', 'w+') as f:
|
|
f.write('Acquire::http::Proxy "' + http_proxy + '";')
|
|
os.system("sudo mv /tmp/00proxy /etc/apt/apt.conf.d/00proxy")
|
|
os.system("sudo chown root /etc/apt/apt.conf.d/00proxy")
|
|
os.system("sudo chmod 744 /etc/apt/apt.conf.d/00proxy")
|
|
|
|
with open('/tmp/proxy.sh', 'w+') as f:
|
|
f.write('export http_proxy="' + http_proxy + '"\n')
|
|
f.write('export https_proxy="' + https_proxy + '"\n')
|
|
f.write('export HTTP_PROXY="' + http_proxy + '"\n')
|
|
f.write('export HTTPS_PROXY="' + https_proxy + '"\n')
|
|
os.system("sudo mv /tmp/proxy.sh /etc/profile.d/proxy.sh")
|
|
os.system("sudo chown root /etc/profile.d/proxy.sh")
|
|
os.system("sudo chmod 744 /etc/profile.d/proxy.sh")
|
|
os.system("sudo cp /etc/profile.d/proxy.sh /etc/default/docker")
|
|
|
|
self.display.msgbox("The GNS3 VM will reboot")
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
|
|
|
|
def kvm_support(self):
|
|
"""
|
|
Returns true if KVM is available
|
|
"""
|
|
return subprocess.call("kvm-ok") == 0
|
|
|
|
|
|
def kvm_control(self):
|
|
"""
|
|
Check if KVM is correctly configured
|
|
"""
|
|
|
|
kvm_ok = self.kvm_support()
|
|
config = self.get_config()
|
|
try:
|
|
if config.getboolean("Qemu", "enable_kvm") is True:
|
|
if kvm_ok is False:
|
|
if self.display.yesno("KVM is not available!\n\nQemu VM will crash!!\n\nThe reason could be unsupported hardware or another virtualization solution is already running.\n\nDisable KVM and get lower performances?") == self.display.OK:
|
|
config.set("Qemu", "enable_kvm", False)
|
|
self.write_config(config)
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
else:
|
|
if kvm_ok is True:
|
|
if self.display.yesno("KVM is available on your computer.\n\nEnable KVM and get better performances?") == self.display.OK:
|
|
config.set("Qemu", "enable_kvm", True)
|
|
self.write_config(config)
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
except configparser.NoSectionError:
|
|
return
|
|
|
|
|
|
def display_loop(self):
|
|
try:
|
|
while True:
|
|
code, tag = self.display.menu("GNS3 {}".format(self.gns3_version()),
|
|
choices=[("Information", "Display VM information"),
|
|
("Upgrade", "Upgrade GNS3"),
|
|
("Migrate", "Migrate data to another GNS3 VM"),
|
|
("Shell", "Open a console"),
|
|
("Security", "Configure authentication"),
|
|
("Keyboard", "Change keyboard layout"),
|
|
("Configure", "Edit server configuration (advanced users ONLY)"),
|
|
("Proxy", "Configure proxy settings"),
|
|
("Networking", "Configure networking settings"),
|
|
("Log", "Show server log"),
|
|
("Test", "Check internet connection"),
|
|
("Shrink", "Shrink the VM disk"),
|
|
("Version", "Select the GNS3 version"),
|
|
("Restore", "Restore the VM (if you have trouble for upgrade)"),
|
|
("Reboot", "Reboot the VM"),
|
|
("Shutdown", "Shutdown the VM")])
|
|
self.display.clear()
|
|
if code == Dialog.OK:
|
|
if tag == "Shell":
|
|
os.execvp("bash", ['/bin/bash'])
|
|
elif tag == "Version":
|
|
self.mode()
|
|
elif tag == "Restore":
|
|
os.execvp("sudo", ['/usr/bin/sudo', "/usr/local/bin/gns3restore"])
|
|
elif tag == "Reboot":
|
|
os.execvp("sudo", ['/usr/bin/sudo', "reboot"])
|
|
elif tag == "Shutdown":
|
|
os.execvp("sudo", ['/usr/bin/sudo', "poweroff"])
|
|
elif tag == "Upgrade":
|
|
self.update()
|
|
elif tag == "Information":
|
|
self.vm_information()
|
|
elif tag == "Log":
|
|
self.log()
|
|
elif tag == "Migrate":
|
|
self.migrate()
|
|
elif tag == "Configure":
|
|
self.edit_config()
|
|
elif tag == "Networking":
|
|
self.edit_network()
|
|
elif tag == "Security":
|
|
self.set_security()
|
|
elif tag == "Keyboard":
|
|
self.keyboard_configuration()
|
|
elif tag == "Test":
|
|
self.check_internet_connectivity()
|
|
elif tag == "Proxy":
|
|
self.edit_proxy()
|
|
elif tag == "Shrink":
|
|
self.shrink_disk()
|
|
except KeyboardInterrupt:
|
|
sys.exit(0)
|
|
|
|
if __name__ == "__main__":
|
|
ws = Welcome_dialog()
|
|
ws.vm_information()
|
|
ws.kvm_control()
|
|
ws.display_loop()
|