import os.path
import subprocess
import re
import json
import time
import crypt
import string
import random
import requests
import cracklib
import modules.commons
from partitionISO import PartitionISO
from packageselector import PackageSelector
from windowstringreader import WindowStringReader
from jsonwrapper import JsonWrapper
from selectdisk import SelectDisk
from license import License
from linuxselector import LinuxSelector
class IsoConfig(object):
"""This class handles iso installer configuration."""
def __init__(self):
self.cd_path = None
self.alpha_chars = list(range(65, 91))
self.alpha_chars.extend(range(97, 123))
self.hostname_accepted_chars = self.alpha_chars
# Adding the numeric chars
self.hostname_accepted_chars.extend(range(48, 58))
# Adding the . and -
self.hostname_accepted_chars.extend([ord('.'), ord('-')])
self.random_id = '%12x' % random.randrange(16**12)
self.random_hostname = "photon-" + self.random_id.strip()
def Configure(self, options_file, maxy, maxx):
kernel_params = subprocess.check_output(['cat', '/proc/cmdline'])
# check for the repo param
m = re.match(r".*repo=(\S+)\s*.*\s*", kernel_params.decode())
if m is not None:
rpm_path = m.group(1)
else:
# the rpms should be in the cd
self.mount_cd()
rpm_path = os.path.join(self.cd_path, "RPMS")
# check the kickstart param
ks_config = None
m = re.match(r".*ks=(\S+)\s*.*\s*", kernel_params.decode())
if m is not None:
ks_config = self.get_config(m.group(1))
install_config = None
if ks_config:
install_config = self.ks_config(options_file, ks_config)
else:
install_config = self.ui_config(options_file, maxy, maxx)
return rpm_path, install_config
@staticmethod
def is_vmware_virtualization():
"""Detect vmware vm"""
process = subprocess.Popen(['systemd-detect-virt'], stdout=subprocess.PIPE)
out, err = process.communicate()
if err is not None and err != 0:
return False
return out == 'vmware\n'
def get_config(self, path):
"""kick start configuration"""
if path.startswith("http://"):
# Do 5 trials to get the kick start
# TODO: make sure the installer run after network is up
ks_file_error = "Failed to get the kickstart file at {0}".format(path)
wait = 1
for _ in range(0, 5):
err_msg = ""
try:
response = requests.get(path, timeout=3)
if response.ok:
return json.loads(response.text)
err_msg = response.text
except Exception as e:
err_msg = e
modules.commons.log(modules.commons.LOG_ERROR,
ks_file_error)
modules.commons.log(modules.commons.LOG_ERROR,
"error msg: {0}".format(err_msg))
print(ks_file_error)
print("retry in a second")
time.sleep(wait)
wait = wait * 2
# Something went wrong
print(ks_file_error)
print("exiting the installer, check the logs for more details")
raise Exception(err_msg)
else:
if path.startswith("cdrom:/"):
self.mount_cd()
path = os.path.join(self.cd_path, path.replace("cdrom:/", "", 1))
return (JsonWrapper(path)).read()
def mount_cd(self):
"""Mount the cd with RPMS"""
# check if the cd is already mounted
if self.cd_path:
return
# Mount the cd to get the RPMS
process = subprocess.Popen(['mkdir', '-p', '/mnt/cdrom'])
retval = process.wait()
# Retry mount the CD
for _ in range(0, 3):
process = subprocess.Popen(['mount', '/dev/cdrom', '/mnt/cdrom'])
retval = process.wait()
if retval == 0:
self.cd_path = "/mnt/cdrom"
return
print("Failed to mount the cd, retry in a second")
time.sleep(1)
print("Failed to mount the cd, exiting the installer")
print("check the logs for more details")
raise Exception("Can not mount the cd")
def ks_config(self, options_file, ks_config):
"""Load configuration from file"""
del options_file
install_config = ks_config
install_config['iso_system'] = False
if self.is_vmware_virtualization() and 'install_linux_esx' not in install_config:
install_config['install_linux_esx'] = True
json_wrapper_option_list = JsonWrapper("build_install_options_all.json")
option_list_json = json_wrapper_option_list.read()
options_sorted = option_list_json.items()
base_path = os.path.dirname("build_install_options_all.json")
package_list = []
package_list = PackageSelector.get_packages_to_install(options_sorted,
install_config['type'],
base_path)
if 'additional_packages' in install_config:
package_list.extend(install_config['additional_packages'])
install_config['packages'] = package_list
if 'partitions' in install_config:
partitions = install_config['partitions']
else:
partitions = modules.commons.default_partitions
install_config['disk'] = modules.commons.partition_disk(install_config['disk'], partitions)
if "hostname" in install_config:
evalhostname = os.popen('printf ' + install_config["hostname"].strip(" ")).readlines()
install_config['hostname'] = evalhostname[0]
if "hostname" not in install_config or install_config['hostname'] == "":
install_config['hostname'] = "photon-" + self.random_id.strip()
# crypt the password if needed
if install_config['password']['crypted']:
install_config['password'] = install_config['password']['text']
else:
install_config['password'] = crypt.crypt(
install_config['password']['text'],
"$6$" + "".join([random.choice(
string.ascii_letters + string.digits) for _ in range(16)]))
return install_config
@staticmethod
def validate_hostname(hostname):
"""A valid hostname must start with a letter"""
error_empty = "Empty hostname or domain is not allowed"
error_dash = "Hostname or domain should not start or end with '-'"
error_hostname = "Hostname should start with alpha char and <= 64 chars"
if hostname is None or not hostname:
return False, error_empty
fields = hostname.split('.')
for field in fields:
if not field:
return False, error_empty
if field[0] == '-' or field[-1] == '-':
return False, error_dash
machinename = fields[0]
return (len(machinename) <= 64 and
machinename[0].isalpha(), error_hostname)
@staticmethod
def validate_password(text):
"""Validate password with cracklib"""
try:
password = cracklib.VeryFascistCheck(text)
except ValueError as message:
password = str(message)
return password == text, "Error: " + password
@staticmethod
def generate_password_hash(password):
"""Generate hash for the password"""
shadow_password = crypt.crypt(
password, "$6$" + "".join(
[random.choice(
string.ascii_letters + string.digits) for _ in range(16)]))
return shadow_password
def ui_config(self, options_file, maxy, maxx):
"""Configuration through UI"""
# This represents the installer screen, the bool indicated if
# I can go back to this window or not
install_config = {'iso_system': False}
install_config['ui_install'] = True
items, select_linux_index = self.add_ui_pages(options_file, maxy, maxx,
install_config)
index = 0
while True:
result = items[index][0](None)
if result.success:
index += 1
if index == len(items):
break
#Skip linux select screen for ostree installation.
if index == select_linux_index:
if install_config['type'] == 'ostree_server':
index += 1
else:
index -= 1
while index >= 0 and items[index][1] is False:
index -= 1
if index < 0:
index = 0
#Skip linux select screen for ostree installation.
if index == select_linux_index:
if install_config['type'] == 'ostree_server':
index -= 1
return install_config
def add_ui_pages(self, options_file, maxy, maxx, install_config):
items = []
license_agreement = License(maxy, maxx)
select_disk = SelectDisk(maxy, maxx, install_config)
select_partition = PartitionISO(maxy, maxx, install_config)
package_selector = PackageSelector(maxy, maxx, install_config, options_file)
hostname_reader = WindowStringReader(
maxy, maxx, 10, 70,
'hostname',
None, # confirmation error msg if it's a confirmation text
None, # echo char
self.hostname_accepted_chars, # set of accepted chars
IsoConfig.validate_hostname, # validation function of the input
None, # post processing of the input field
'Choose the hostname for your system', 'Hostname:', 2, install_config,
self.random_hostname,
True)
root_password_reader = WindowStringReader(
maxy, maxx, 10, 70,
'password',
None, # confirmation error msg if it's a confirmation text
'*', # echo char
None, # set of accepted chars
IsoConfig.validate_password, # validation function of the input
None, # post processing of the input field
'Set up root password', 'Root password:', 2, install_config)
confirm_password_reader = WindowStringReader(
maxy, maxx, 10, 70,
'password',
# confirmation error msg if it's a confirmation text
"Passwords don't match, please try again.",
'*', # echo char
None, # set of accepted chars
None, # validation function of the input
IsoConfig.generate_password_hash, # post processing of the input field
'Confirm root password', 'Confirm Root password:', 2, install_config)
items.append((license_agreement.display, False))
items.append((select_disk.display, True))
items.append((select_partition.display, False))
items.append((select_disk.guided_partitions, False))
items.append((package_selector.display, True))
select_linux_index = -1
if self.is_vmware_virtualization():
linux_selector = LinuxSelector(maxy, maxx, install_config)
items.append((linux_selector.display, True))
select_linux_index = items.index((linux_selector.display, True))
items.append((hostname_reader.get_user_string, True))
items.append((root_password_reader.get_user_string, True))
items.append((confirm_password_reader.get_user_string, False))
return items, select_linux_index