Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/archinstall/lib/profiles.py
blob: 07bd3fd4b7c1412e49218b667038a18ad63e0710 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
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