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import os, urllib.request, urllib.parse, ssl, json
import importlib.util, sys
from collections import OrderedDict
from .general import multisplit, sys_command, log
from .exceptions import *
UPSTREAM_URL = 'https://raw.githubusercontent.com/Torxed/archinstall/master/profiles'
def grab_url_data(path):
safe_path = path[:path.find(':')+1]+''.join([item if item in ('/', '?', '=', '&') else urllib.parse.quote(item) for item in multisplit(path[path.find(':')+1:], ('/', '?', '=', '&'))])
ssl_context = ssl.create_default_context()
ssl_context.check_hostname = False
ssl_context.verify_mode=ssl.CERT_NONE
response = urllib.request.urlopen(safe_path, context=ssl_context)
return response.read()
class Imported():
def __init__(self, spec, imported):
self.spec = spec
self.imported = imported
def __enter__(self, *args, **kwargs):
self.spec.loader.exec_module(self.imported)
return self
def __exit__(self, *args, **kwargs):
# TODO: https://stackoverflow.com/questions/28157929/how-to-safely-handle-an-exception-inside-a-context-manager
if len(args) >= 2 and args[1]:
raise args[1]
class Profile():
def __init__(self, installer, name, args={}):
self.name = name
self.installer = installer
self._cache = None
self.args = args
def __repr__(self, *args, **kwargs):
return f'Profile({self.name} <"{self.path}">)'
@property
def path(self, *args, **kwargs):
for path in ['./profiles', '/etc/archinstall', '/etc/archinstall/profiles', os.path.abspath(f'{os.path.dirname(__file__)}/../profiles')]: # Step out of /lib
if os.path.isfile(f'{path}/{self.name}.json'):
return os.path.abspath(f'{path}/{self.name}.json')
elif os.path.isfile(f'{path}/{self.name}.py'):
return os.path.abspath(f'{path}/{self.name}.py')
try:
if (cache := grab_url_data(f'{UPSTREAM_URL}/{self.name}.py')):
self._cache = cache
return f'{UPSTREAM_URL}/{self.name}.py'
except urllib.error.HTTPError:
pass
try:
if (cache := grab_url_data(f'{UPSTREAM_URL}/{self.name}.json')):
self._cache = cache
return f'{UPSTREAM_URL}/{self.name}.json'
except urllib.error.HTTPError:
pass
try:
if (cache := grab_url_data(f'{UPSTREAM_URL}/{self.name}.json')):
self._cache = cache
return f'{UPSTREAM_URL}/{self.name}.json'
except urllib.error.HTTPError:
pass
return None
def py_exec_mock(self):
spec.loader.exec_module(imported)
def load_instructions(self):
if (absolute_path := self.path):
if os.path.splitext(absolute_path)[1] == '.py':
spec = importlib.util.spec_from_file_location(absolute_path, absolute_path)
imported = importlib.util.module_from_spec(spec)
sys.modules[os.path.basename(absolute_path)] = imported
return Imported(spec, imported)
elif absolute_path[:4] == 'http':
return json.loads(self._cache)
with open(absolute_path, 'r') as fh:
return json.load(fh)
raise ProfileError(f'No such profile ({self.name}) was found either locally or in {UPSTREAM_URL}')
def install(self):
instructions = self.load_instructions()
if type(instructions) == Imported:
__builtins__['installation'] = self.installer # There's no easy way to give the imported profile the installer instance unless we require the profile-programmer to create a certain function that must be the same for all.. Which is a bit inconvenient so lets just make it truly global
with instructions as runtime:
log(f'Profile {self.name} finished successfully.')
else:
if 'args' in instructions:
self.args = instructions['args']
if 'post' in instructions:
instructions = instructions['post']
for title in instructions:
log(f'Running post installation step {title}')
log('[N] Network Deploy: {}'.format(title))
if type(instructions[title]) == str:
log('[N] Loading {} configuration'.format(instructions[title]))
log(f'Loading {instructions[title]} configuration')
instructions[title] = Application(self.installer, instructions[title], args=self.args)
instructions[title].install()
else:
for command in instructions[title]:
raw_command = command
opts = instructions[title][command] if type(instructions[title][command]) in (dict, OrderedDict) else {}
if len(opts):
if 'pass-args' in opts or 'format' in opts:
command = command.format(**self.args)
## FIXME: Instead of deleting the two options
## in order to mute command output further down,
## check for a 'debug' flag per command and delete these two
if 'pass-args' in opts:
del(opts['pass-args'])
elif 'format' in opts:
del(opts['format'])
if 'pass-args' in opts and opts['pass-args']:
command = command.format(**self.args)
if 'runas' in opts and f'su - {opts["runas"]} -c' not in command:
command = command.replace('"', '\\"')
command = f'su - {opts["runas"]} -c "{command}"'
if 'no-chroot' in opts and opts['no-chroot']:
log(f'Executing {command} as simple command from live-cd.')
o = sys_command(command, opts)
elif 'chroot' in opts and opts['chroot']:
log(f'Executing {command} in chroot.')
## Run in a manually set up version of arch-chroot (arch-chroot will break namespaces).
## This is a bit risky in case the file systems changes over the years, but we'll probably be safe adding this as an option.
## **> Prefer if possible to use 'no-chroot' instead which "live boots" the OS and runs the command.
o = sys_command(f"mount /dev/mapper/luksdev {self.installer.mountpoint}")
o = sys_command(f"cd {self.installer.mountpoint}; cp /etc/resolv.conf etc")
o = sys_command(f"cd {self.installer.mountpoint}; mount -t proc /proc proc")
o = sys_command(f"cd {self.installer.mountpoint}; mount --make-rslave --rbind /sys sys")
o = sys_command(f"cd {self.installer.mountpoint}; mount --make-rslave --rbind /dev dev")
o = sys_command(f'chroot {self.installer.mountpoint} /bin/bash -c "{command}"')
o = sys_command(f"cd {self.installer.mountpoint}; umount -R dev")
o = sys_command(f"cd {self.installer.mountpoint}; umount -R sys")
o = sys_command(f"cd {self.installer.mountpoint}; umount -R proc")
else:
if 'boot' in opts and opts['boot']:
log(f'Executing {command} in boot mode.')
defaults = {
'login:' : 'root\n',
'Password:' : self.args['password']+'\n',
f'[root@{self.args["hostname"]} ~]#' : command+'\n',
}
if not 'events' in opts: opts['events'] = {}
events = {**defaults, **opts['events']}
del(opts['events'])
o = b''.join(sys_command(f'/usr/bin/systemd-nspawn -D {self.installer.mountpoint} -b --machine temporary', events=events))
else:
log(f'Executing {command} in with systemd-nspawn without boot.')
o = b''.join(sys_command(f'/usr/bin/systemd-nspawn -D {self.installer.mountpoint} --machine temporary {command}'))
if type(instructions[title][raw_command]) == bytes and len(instructions['post'][title][raw_command]) and not instructions['post'][title][raw_command] in o:
log(f'{command} failed: {o.decode("UTF-8")}')
log('[W] Post install command failed: {}'.format(o.decode('UTF-8')))
class Application(Profile):
@property
def path(self, *args, **kwargs):
for path in ['./applications', './profiles/applications', '/etc/archinstall/applications', '/etc/archinstall/profiles/applications']:
if os.path.isfile(f'{path}/{self.name}.json'):
return os.path.abspath(f'{path}/{self.name}.json')
try:
if (cache := grab_url_data(f'{UPSTREAM_URL}/{self.name}.json')):
self._cache = cache
return f'{UPSTREAM_URL}/{self.name}.json'
except urllib.error.HTTPError:
pass
try:
if (cache := grab_url_data(f'{UPSTREAM_URL}/applications/{self.name}.json')):
self._cache = cache
return f'{UPSTREAM_URL}/applications/{self.name}.json'
except urllib.error.HTTPError:
pass
return None
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