starting to roll in some logging. still need to figure out what's going on with that gpg verifyData
This commit is contained in:
parent
1ae519bb40
commit
f25e6bee2a
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@ -1,18 +1,27 @@
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import logging
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##
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try:
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from . import constants
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_has_constants = True
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except ImportError:
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from . import constants_fallback as constants
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_has_constants = False
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from . import log
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from . import constants_fallback
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from . import utils
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from . import disk
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from . import system
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from . import config
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from . import envsetup
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from . import log
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from . import network
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from . import pacman
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_logger = logging.getLogger('AIF')
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if not _has_constants:
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_logger.warning('Could not import constants, so using constants_fallback as constants')
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class AIF(object):
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def __init__(self):
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# Process:
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@ -1,10 +1,13 @@
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import copy
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import logging
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import os
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import re
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##
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import requests
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from lxml import etree, objectify
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_logger = logging.getLogger('config:{0}'.format(__name__))
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class Config(object):
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def __init__(self, xsd_path = None, *args, **kwargs):
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@ -55,12 +58,18 @@ class Config(object):
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schemaURL = split_url[1]
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else:
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schemaURL = split_url[0] # a LAZY schemaLocation
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req = requests.get(schemaURL)
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if not req.ok:
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# TODO: logging!
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raise RuntimeError('Could not download XSD')
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raw_xsd = req.content
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base_url = os.path.split(req.url)[0] # This makes me feel dirty.
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if schemaURL.startswith('file://'):
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schemaURL = re.sub(r'^file://', r'', schemaURL)
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with open(schemaURL, 'rb') as fh:
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raw_xsd = fh.read()
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base_url = os.path.dirname(schemaURL)
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else:
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req = requests.get(schemaURL)
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if not req.ok:
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# TODO: logging!
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raise RuntimeError('Could not download XSD')
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raw_xsd = req.content
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base_url = os.path.split(req.url)[0] # This makes me feel dirty.
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self.xsd = etree.XMLSchema(etree.XML(raw_xsd, base_url = base_url))
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return(None)
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@ -197,7 +206,7 @@ class ConfigBin(Config):
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detector = {'raw': (re.compile(r'^\s*(?P<xml><(\?xml|aif)\s+.*)\s*$', re.DOTALL | re.MULTILINE), ConfigStr),
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'remote': (re.compile(r'^(?P<uri>(?P<proto>(https?|ftps?)://)(?P<path>.*))\s*$'), RemoteFile),
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'remote': (re.compile(r'^(?P<uri>(?P<scheme>(https?|ftps?)://)(?P<path>.*))\s*$'), RemoteFile),
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'local': (re.compile(r'^(file://)?(?P<path>(/?[^/]+)+/?)$'), LocalFile)}
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@ -22,6 +22,7 @@ EXTERNAL_DEPS = ['blkinfo',
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'pytz',
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'requests',
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'validators']
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DEFAULT_LOGFILE = '/var/log/aif.log'
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# PARTED FLAG INDEXING
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PARTED_FSTYPES = sorted(list(dict(vars(parted.filesystem))['fileSystemType'].keys()))
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PARTED_FSTYPES_GUIDS = {'affs0': uuid.UUID(hex = '0FC63DAF-8483-4772-8E79-3D69D8477DE4'),
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48
aif/log.py
48
aif/log.py
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@ -1 +1,47 @@
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import logging
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import logging
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import logging.handlers
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import os
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##
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try:
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# https://www.freedesktop.org/software/systemd/python-systemd/journal.html#journalhandler-class
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from systemd import journal
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_has_journald = True
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except ImportError:
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_has_journald = False
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##
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from . import constants_fallback
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_cfg_args = {'handlers': [],
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'level': logging.DEBUG} # TEMPORARY FOR TESTING
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if _has_journald:
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# There were some weird changes somewhere along the line.
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try:
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# But it's *probably* this one.
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h = journal.JournalHandler()
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except AttributeError:
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h = journal.JournaldLogHandler()
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# Systemd includes times, so we don't need to.
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h.setFormatter(logging.Formatter(style = '{',
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fmt = ('{name}:{levelname}:{name}:{filename}:'
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'{funcName}:{lineno}: {message}')))
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_cfg_args['handlers'].append(h)
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# Logfile
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# Set up the permissions beforehand.
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os.makedirs(os.path.dirname(constants_fallback.DEFAULT_LOGFILE), exist_ok = True)
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os.chmod(constants_fallback.DEFAULT_LOGFILE, 0o0600)
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h = logging.handlers.RotatingFileHandler(constants_fallback.DEFAULT_LOGFILE,
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encoding = 'utf8',
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# Disable rotating for now.
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# maxBytes = 50000000000,
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# backupCount = 30
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)
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h.setFormatter(logging.Formatter(style = '{',
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fmt = ('{asctime}:'
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'{levelname}:{name}:{filename}:'
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'{funcName}:{lineno}: {message}')))
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_cfg_args['handlers'].append(h)
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logging.basicConfig(**_cfg_args)
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logger = logging.getLogger()
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logger.info('Logging initialized.')
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@ -0,0 +1,2 @@
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import os
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import aif.utils.file_handler
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@ -1,3 +1,4 @@
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import logging
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import math
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import os
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import pathlib
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@ -7,14 +8,24 @@ import subprocess
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##
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import psutil
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##
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from . import parser
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from . import file_handler
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from . import gpg_handler
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from . import hash_handler
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from . import sources
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_logger = logging.getLogger('utils.__init__')
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def checkMounted(devpath):
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if devpath in [p.device for p in psutil.disk_partitions(all = True)]:
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raise RuntimeError('{0} is mounted; we are cowardly refusing to destructive operations on it'.format(devpath))
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for p in psutil.disk_partitions(all = True):
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if p.device == devpath:
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_logger.error(('{0} is mounted at {1} but was specified as a target. '
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'Cowardly refusing to run potentially destructive operations on it.').format(devpath,
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p.mountpoint))
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# TODO: raise only if not dryrun? Raise warning instead if so?
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raise RuntimeError('Device mounted in live environment')
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return(None)
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@ -104,6 +115,7 @@ def kernelFilesystems():
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FS_FSTYPES.append(l[0])
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else:
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FS_FSTYPES.append(l[1])
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_logger.debug('Built list of pre-loaded filesystem types: {0}'.format(','.join(FS_FSTYPES)))
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_mod_dir = os.path.join('/lib/modules',
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os.uname().release,
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'kernel/fs')
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@ -119,14 +131,23 @@ def kernelFilesystems():
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fs_name = mod_name.group('fsname')
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if fs_name:
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# The kernel *probably* has autoloading enabled, but in case it doesn't...
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# TODO: logging!
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if os.getuid() == 0:
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subprocess.run(['modprobe', fs_name])
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cmd = subprocess.run(['modprobe', fs_name], stderr = subprocess.PIPE, stdout = subprocess.PIPE)
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_logger.debug('Executed: {0}'.format(' '.join(cmd.args)))
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if cmd.returncode != 0:
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_logger.warning('Command returned non-zero status')
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_logger.debug('Exit status: {0}'.format(str(cmd.returncode)))
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for a in ('stdout', 'stderr'):
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x = getattr(cmd, a)
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if x:
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_logger.debug('{0}: {1}'.format(a.upper(), x.decode('utf-8').strip()))
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FS_FSTYPES.append(fs_name)
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except FileNotFoundError:
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# We're running on a kernel that doesn't have modules
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_logger.info('Kernel has no modules available')
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pass
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FS_FSTYPES = sorted(list(set(FS_FSTYPES)))
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_logger.debug('Generated full list of FS_FSTYPES: {0}'.format(','.join(FS_FSTYPES)))
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return(FS_FSTYPES)
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@ -143,16 +164,16 @@ def xmlBool(xmlobj):
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class _Sizer(object):
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def __init__(self):
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# We use different methods for converting between storage and BW, and different multipliers for each subtype.
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# https://stackoverflow.com/a/12912296/733214
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# https://stackoverflow.com/a/52684562/733214
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# https://stackoverflow.com/questions/5194057/better-way-to-convert-file-sizes-in-python
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# https://en.wikipedia.org/wiki/Orders_of_magnitude_(data)
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# https://en.wikipedia.org/wiki/Binary_prefix
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# 'decimal' is base-10, 'binary' is base-2. (Duh.)
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# "b" = bytes, "n" = given value, and "u" = unit suffix's key in below notes.
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self.storageUnits = {'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
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# We use different methods for converting between storage and BW, and different multipliers for each subtype.
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# https://stackoverflow.com/a/12912296/733214
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# https://stackoverflow.com/a/52684562/733214
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# https://stackoverflow.com/questions/5194057/better-way-to-convert-file-sizes-in-python
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# https://en.wikipedia.org/wiki/Orders_of_magnitude_(data)
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# https://en.wikipedia.org/wiki/Binary_prefix
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# 'decimal' is base-10, 'binary' is base-2. (Duh.)
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# "b" = bytes, "n" = given value, and "u" = unit suffix's key in below notes.
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storageUnits = {
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'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
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0: (None, 'B', 'byte'),
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3: ('k', 'kB', 'kilobyte'),
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6: ('M', 'MB', 'megabyte'),
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@ -163,19 +184,20 @@ class _Sizer(object):
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18: ('Z', 'ZB', 'zettabyte'),
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19: ('Y', 'YB', 'yottabyte')
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},
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'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
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-1: ('nybble', 'nibble', 'nyble', 'half-byte', 'tetrade', 'nibble'),
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10: ('Ki', 'KiB', 'kibibyte'),
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20: ('Mi', 'MiB', 'mebibyte'),
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30: ('Gi', 'GiB', 'gibibyte'),
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40: ('Ti', 'TiB', 'tebibyte'),
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50: ('Pi', 'PiB', 'pebibyte'),
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60: ('Ei', 'EiB', 'exbibyte'),
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70: ('Zi', 'ZiB', 'zebibyte'),
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80: ('Yi', 'YiB', 'yobibyte')
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}}
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# https://en.wikipedia.org/wiki/Bit#Multiple_bits - note that 8 bits = 1 byte
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self.bwUnits = {'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
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'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
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-1: ('nybble', 'nibble', 'nyble', 'half-byte', 'tetrade', 'nibble'),
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10: ('Ki', 'KiB', 'kibibyte'),
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20: ('Mi', 'MiB', 'mebibyte'),
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30: ('Gi', 'GiB', 'gibibyte'),
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40: ('Ti', 'TiB', 'tebibyte'),
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50: ('Pi', 'PiB', 'pebibyte'),
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60: ('Ei', 'EiB', 'exbibyte'),
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70: ('Zi', 'ZiB', 'zebibyte'),
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80: ('Yi', 'YiB', 'yobibyte')
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}}
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# https://en.wikipedia.org/wiki/Bit#Multiple_bits - note that 8 bits = 1 byte
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bwUnits = {
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'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
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0: (None, 'b', 'bit'),
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3: ('k', 'kb', 'kilobit'),
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6: ('M', 'Mb', 'megabit'),
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@ -186,29 +208,32 @@ class _Sizer(object):
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18: ('Z', 'Zb', 'zettabit'),
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19: ('Y', 'Yb', 'yottabit')
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},
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'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
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-1: ('semi-octet', 'quartet', 'quadbit'),
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10: ('Ki', 'Kib', 'kibibit'),
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20: ('Mi', 'Mib', 'mebibit'),
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30: ('Gi', 'Gib', 'gibibit'),
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40: ('Ti', 'Tib', 'tebibit'),
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50: ('Pi', 'Pib', 'pebibit'),
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60: ('Ei', 'Eib', 'exbibit'),
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70: ('Zi', 'Zib', 'zebibit'),
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80: ('Yi', 'Yib', 'yobibit')
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}}
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self.valid_storage = []
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for unit_type, convpair in self.storageUnits.items():
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for f, l in convpair.items():
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for suffix in l:
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if suffix not in self.valid_storage and suffix:
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self.valid_storage.append(suffix)
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self.valid_bw = []
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for unit_type, convpair in self.bwUnits.items():
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for f, l in convpair.items():
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for suffix in l:
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if suffix not in self.valid_bw and suffix:
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self.valid_bw.append(suffix)
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'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
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-1: ('semi-octet', 'quartet', 'quadbit'),
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10: ('Ki', 'Kib', 'kibibit'),
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20: ('Mi', 'Mib', 'mebibit'),
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30: ('Gi', 'Gib', 'gibibit'),
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40: ('Ti', 'Tib', 'tebibit'),
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50: ('Pi', 'Pib', 'pebibit'),
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60: ('Ei', 'Eib', 'exbibit'),
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70: ('Zi', 'Zib', 'zebibit'),
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80: ('Yi', 'Yib', 'yobibit')
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}}
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valid_storage = []
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for unit_type, convpair in storageUnits.items():
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for f, l in convpair.items():
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for suffix in l:
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if suffix not in valid_storage and suffix:
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valid_storage.append(suffix)
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valid_bw = []
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for unit_type, convpair in bwUnits.items():
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for f, l in convpair.items():
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for suffix in l:
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if suffix not in valid_bw and suffix:
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valid_bw.append(suffix)
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def __init__(self):
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pass
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def convert(self, n, suffix):
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conversion = {}
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@ -227,6 +252,7 @@ class _Sizer(object):
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conversion = None
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base_factors = []
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if suffix not in self.valid_bw:
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_logger.error('Passed an invalid suffix')
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raise ValueError('suffix is not a valid unit notation for this conversion')
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if target and target not in self.valid_bw:
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raise ValueError('target is not a valid unit notation for this conversion')
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@ -310,4 +336,3 @@ def convertSizeUnit(pos):
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else:
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raise ValueError('Invalid size specified: {0}'.format(orig_pos))
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return((from_beginning, _size, amt_type))
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|
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@ -9,7 +9,7 @@ class File(object):
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self.path_rel = pathlib.PurePosixPath(self.orig_path)
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self.path_full = pathlib.PurePosixPath(self.fullpath)
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def __str(self):
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def __str__(self):
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return(self.fullpath)
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|
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@ -8,28 +8,47 @@ import gpg
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import gpg.errors
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class KeyEditor(object):
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def __init__(self):
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self.trusted = False
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def truster(self, kw, arg, *args, **kwargs):
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if kw == 'GET_LINE':
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if arg == 'keyedit.prompt':
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if not self.trusted:
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return('trust')
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else:
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return('save')
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elif arg == 'edit_ownertrust.value' and not self.trusted:
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self.trusted = True
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return('4') # "Full"
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else:
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return('save')
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return(None)
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class GPG(object):
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def __init__(self, homedir = None, primary_key = None):
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def __init__(self, homedir = None, primary_key = None, *args, **kwargs):
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self.homedir = homedir
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self.primary_key = primary_key
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self.temporary = None
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self.gpg = None
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self.ctx = None
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self._imported_keys = []
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self._initContext()
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def _initContext(self):
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if not self.homedir:
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self.homedir = tempfile.mkdtemp(suffix = '.gpg', prefix = '.aif.')
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self.homedir = os.path.abspath(os.path.expanduser(self.homedir))
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self.temporary = False
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if not os.path.isdir(self.homedir):
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self.temporary = True
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self.homedir = os.path.abspath(os.path.expanduser(self.homedir))
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if not os.path.isdir(self.homedir):
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os.makedirs(self.homedir, exist_ok = True)
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os.chmod(self.homedir, 0o0700)
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self.gpg = gpg.Context(home_dir = self.homedir)
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self.ctx = gpg.Context(home_dir = self.homedir)
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if self.temporary:
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self.primary_key = self.createKey('AIF-NG File Verification Key', sign = True, force = True)
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else:
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self.primary_key = self.getKey(self.primary_key, secret = True)
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self.primary_key = self.createKey('AIF-NG File Verification Key', sign = True, force = True).fpr
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self.primary_key = self.findKeyByID(self.primary_key, source = 'secret')
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self.ctx.signers = [self.primary_key]
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return(None)
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def clean(self):
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@ -38,7 +57,7 @@ class GPG(object):
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if self.temporary:
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self.primary_key = None
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shutil.rmtree(self.homedir)
|
||||
self.gpg = None
|
||||
self.ctx = None
|
||||
return(None)
|
||||
|
||||
def createKey(self, userid, *args, **kwargs):
|
||||
|
|
@ -56,11 +75,11 @@ class GPG(object):
|
|||
if not keyinfo['expires_in']:
|
||||
del(keyinfo['expires_in'])
|
||||
keyinfo['expires'] = False
|
||||
k = self.gpg.create_key(**keyinfo)
|
||||
return(k.fpr)
|
||||
k = self.ctx.create_key(**keyinfo)
|
||||
return(k)
|
||||
|
||||
def findKey(self, searchstr, secret = False, local = True, remote = True,
|
||||
secret_only = False, keyring_import = False):
|
||||
secret_only = False, keyring_import = False, *args, **kwargs):
|
||||
fltr = 0
|
||||
if secret:
|
||||
fltr = fltr | gpg.constants.KEYLIST_MODE_WITH_SECRET
|
||||
|
|
@ -68,83 +87,137 @@ class GPG(object):
|
|||
fltr = fltr | gpg.constants.KEYLIST_MODE_LOCAL
|
||||
if remote:
|
||||
fltr = fltr | gpg.constants.KEYLIST_MODE_EXTERN
|
||||
keys = [k for k in self.gpg.keylist(pattern = searchstr, secret = secret_only, mode = fltr)]
|
||||
keys = [k for k in self.ctx.keylist(pattern = searchstr, secret = secret_only, mode = fltr)]
|
||||
if keyring_import:
|
||||
self.importKeys(keys, native = True)
|
||||
return(keys)
|
||||
|
||||
def getKey(self, key_id, secret = False, strict = False):
|
||||
def findKeyByID(self, key_id, source = 'remote', keyring_import = False, *args, **kwargs):
|
||||
# So .get_key() CAN get a remote key from a keyserver... but you can't have ANY other keylist modes defined.
|
||||
# Ugh.
|
||||
sources = {'remote': gpg.constants.KEYLIST_MODE_EXTERN,
|
||||
'local': gpg.constants.KEYLIST_MODE_LOCAL,
|
||||
'secret': gpg.constants.KEYLIST_MODE_WITH_SECRET}
|
||||
if source not in sources.keys():
|
||||
raise ValueError('source parameter must be one (and only one) of: {0}'.format(sources.keys()))
|
||||
orig_mode = self.ctx.get_keylist_mode()
|
||||
self.ctx.set_keylist_mode(sources[source])
|
||||
try:
|
||||
key = self.ctx.get_key(key_id, secret = (True if source == 'secret' else False))
|
||||
except gpg.errors.KeyNotFound:
|
||||
key = None
|
||||
self.ctx.set_keylist_mode(orig_mode)
|
||||
if keyring_import and key:
|
||||
self.importKeys(key, native = True)
|
||||
return(key)
|
||||
|
||||
def getKey(self, key_id, secret = False, strict = False, *args, **kwargs):
|
||||
try:
|
||||
getattr(key_id, 'fpr')
|
||||
return(key_id)
|
||||
except AttributeError:
|
||||
if not strict:
|
||||
self.findKey(key_id, keyring_import = True)
|
||||
self.findKeyByID(key_id, keyring_import = True, **kwargs)
|
||||
try:
|
||||
key = self.gpg.get_key(key_id, secret = secret)
|
||||
key = self.ctx.get_key(key_id, secret = secret)
|
||||
except gpg.errors.KeyNotFound:
|
||||
key = None
|
||||
return(key)
|
||||
return(None)
|
||||
|
||||
def getKeyFile(self, keyfile, keyring_import = False):
|
||||
def getKeyFile(self, keyfile, keyring_import = False, *args, **kwargs):
|
||||
keyfile = os.path.abspath(os.path.expanduser(keyfile))
|
||||
with open(keyfile, 'rb') as fh:
|
||||
rawkey_data = fh.read()
|
||||
fh.seek(0, 0)
|
||||
keys = [k for k in self.gpg.keylist(source = fh)]
|
||||
keys = [k for k in self.ctx.keylist(source = fh)]
|
||||
if keyring_import:
|
||||
self.importKeys(keys, native = True)
|
||||
return((keys, rawkey_data))
|
||||
|
||||
def getKeyStr(self, keydata, keyring_import = False):
|
||||
def getKeyData(self, keydata, keyring_import = False, *args, **kwargs):
|
||||
orig_keydata = keydata
|
||||
if isinstance(keydata, str):
|
||||
keydata = keydata.encode('utf-8')
|
||||
buf = io.BytesIO(keydata)
|
||||
keys = [k for k in self.gpg.keylist(source = buf)]
|
||||
keys = [k for k in self.ctx.keylist(source = buf)]
|
||||
buf.close()
|
||||
if keyring_import:
|
||||
self.importKeys(keys, native = True)
|
||||
return((keys, orig_keydata))
|
||||
|
||||
def importKeys(self, keydata, native = False):
|
||||
if not native:
|
||||
self.gpg.key_import(keydata)
|
||||
else:
|
||||
def importKeys(self, keydata, native = False, local = True, remote = True, *args, **kwargs):
|
||||
fltr = 0
|
||||
orig_km = None
|
||||
keys = []
|
||||
if local:
|
||||
fltr = fltr | gpg.constants.KEYLIST_MODE_LOCAL
|
||||
if remote:
|
||||
fltr = fltr | gpg.constants.KEYLIST_MODE_EXTERN
|
||||
if self.ctx.get_keylist_mode() != fltr:
|
||||
orig_km = self.ctx.get_keylist_mode()
|
||||
self.ctx.set_keylist_mode(fltr)
|
||||
if not native: # It's raw key data (.gpg, .asc, etc.).
|
||||
formatted_keys = b''
|
||||
if isinstance(keydata, str):
|
||||
formatted_keys += keydata.encode('utf-8')
|
||||
elif isinstance(keydata, list):
|
||||
for k in keydata:
|
||||
if isinstance(k, str):
|
||||
formatted_keys += k.encode('utf-8')
|
||||
else:
|
||||
formatted_keys += k
|
||||
else:
|
||||
formatted_keys += keydata
|
||||
for rslt in self.ctx.key_import(formatted_keys).imports:
|
||||
keys.append(self.ctx.get_key(rslt.fpr))
|
||||
else: # It's a native Key() object (or a list of them).
|
||||
if not isinstance(keydata, list):
|
||||
keydata = [keydata]
|
||||
self.gpg.op_import_keys(keydata)
|
||||
keys = keydata
|
||||
self.ctx.op_import_keys(keydata)
|
||||
if orig_km:
|
||||
self.ctx.set_keylist_mode(orig_km)
|
||||
for k in keys:
|
||||
self.ctx.key_sign(k, local = True)
|
||||
trusteditor = KeyEditor()
|
||||
self.ctx.interact(k, trusteditor.truster)
|
||||
return(None)
|
||||
|
||||
def verifyData(self, data, keys = None, strict = False, detached = None, *args, **kwargs):
|
||||
results = {}
|
||||
if keys:
|
||||
if not isinstance(keys, list):
|
||||
keys = [self.getKey(keys)]
|
||||
keys = [self.getKey(keys, source = 'local')]
|
||||
else:
|
||||
keys = [self.getKey(k) for k in keys]
|
||||
keys = [self.getKey(k, source = 'local') for k in keys]
|
||||
if isinstance(data, str):
|
||||
data = data.encode('utf-8')
|
||||
args = {'signed_data': data}
|
||||
fnargs = {'signed_data': data}
|
||||
if detached:
|
||||
if isinstance(detached, str):
|
||||
detached = detached.encode('utf-8')
|
||||
args['signature'] = detached
|
||||
if not isinstance(detached, bytes) and not hasattr(detached, 'read'):
|
||||
raise TypeError('detached must be bytes or a file-like object (make sure the position is correct!)')
|
||||
fnargs['signature'] = detached
|
||||
if strict:
|
||||
if keys:
|
||||
if not isinstance(keys, list):
|
||||
keys = [keys]
|
||||
args['verify'] = keys
|
||||
results[None] = self.gpg.verify(**args)
|
||||
fnargs['verify'] = keys
|
||||
results[None] = self.ctx.verify(**fnargs)
|
||||
else:
|
||||
if keys:
|
||||
for k in keys:
|
||||
_args = copy.deepcopy(args)
|
||||
_args['verify'] = [k]
|
||||
results[k.fpr] = self.gpg.verify(**_args)
|
||||
_fnargs = copy.deepcopy(fnargs)
|
||||
_fnargs['verify'] = [k]
|
||||
try:
|
||||
print(self.ctx.get_keylist_mode())
|
||||
sigchk = self.ctx.verify(**_fnargs)
|
||||
results[k.fpr] = (True, sigchk[1].results, None)
|
||||
except gpg.errors.MissingSignatures as e:
|
||||
results[k.fpr] = (False, e.results, 'Missing Signature')
|
||||
except gpg.errors.BadSignatures as e:
|
||||
results[k.fpr] = (False, e.results, 'Bad Signature')
|
||||
else:
|
||||
results[None] = self.gpg.verify(**args)
|
||||
results[None] = self.ctx.verify(**fnargs)
|
||||
return(results)
|
||||
|
||||
def verifyFile(self, filepath, *args, **kwargs):
|
||||
|
|
|
|||
|
|
@ -1,24 +1,28 @@
|
|||
import copy
|
||||
import hashlib
|
||||
import os
|
||||
import pathlib
|
||||
import zlib
|
||||
##
|
||||
import aif.constants_fallback
|
||||
from . import file_handler
|
||||
|
||||
|
||||
class Hash(object):
|
||||
def __init__(self, file_path):
|
||||
def __init__(self, hash_algos = None, *args, **kwargs):
|
||||
self.hashers = None
|
||||
self.valid_hashtypes = list(aif.constants_fallback.HASH_SUPPORTED_TYPES)
|
||||
self.hash_algos = hash_algos
|
||||
self.configure()
|
||||
|
||||
def configure(self, hashalgo = None):
|
||||
def configure(self, *args, **kwargs):
|
||||
self.hashers = {}
|
||||
if hashalgo:
|
||||
if not isinstance(hashalgo, list):
|
||||
hashalgo = [hashalgo]
|
||||
if self.hash_algos:
|
||||
if not isinstance(self.hash_algos, list):
|
||||
self.hash_algos = [self.hash_algos]
|
||||
else:
|
||||
hashalgo = list(aif.constants_fallback.HASH_SUPPORTED_TYPES)
|
||||
for h in hashalgo:
|
||||
if h not in aif.constants_fallback.HASH_SUPPORTED_TYPES:
|
||||
self.hash_algos = copy.deepcopy(self.valid_hashtypes)
|
||||
for h in self.hash_algos:
|
||||
if h not in self.valid_hashtypes:
|
||||
raise ValueError('Hash algorithm not supported')
|
||||
if h not in aif.constants_fallback.HASH_EXTRA_SUPPORTED_TYPES:
|
||||
hasher = hashlib.new(h)
|
||||
|
|
@ -27,22 +31,44 @@ class Hash(object):
|
|||
self.hashers[h] = hasher
|
||||
return()
|
||||
|
||||
def hashData(self, data):
|
||||
def hashData(self, data, *args, **kwargs):
|
||||
results = {}
|
||||
if not self.hashers:
|
||||
if not self.hashers or not self.hash_algos:
|
||||
self.configure()
|
||||
for hashtype, hasher in self.hashers.items():
|
||||
if hashtype in aif.constants_fallback.HASH_EXTRA_SUPPORTED_TYPES:
|
||||
results[hashtype] = hasher(data)
|
||||
else:
|
||||
rslt = hasher.update(data)
|
||||
results[hashtype] = rslt.hexdigest()
|
||||
hasher.update(data)
|
||||
results[hashtype] = hasher.hexdigest()
|
||||
return(results)
|
||||
|
||||
def hashFile(self, file_path):
|
||||
if not isinstance(file_path, (str, file_handler.File, pathlib.Path, pathlib.PurePath)):
|
||||
def hashFile(self, file_path, *args, **kwargs):
|
||||
if not isinstance(file_path, (str, pathlib.Path, pathlib.PurePath)):
|
||||
raise ValueError('file_path must be a path expression')
|
||||
file_path = str(file_path)
|
||||
with open(file_path, 'rb') as fh:
|
||||
results = self.hashData(fh.read())
|
||||
return(results)
|
||||
|
||||
def verifyData(self, data, checksum, checksum_type, *args, **kwargs):
|
||||
if isinstance(data, str):
|
||||
data = data.encode('utf-8')
|
||||
if not isinstance(checksum, str):
|
||||
checksum = checksum.decode('utf-8')
|
||||
if checksum_type not in self.hash_algos:
|
||||
raise ValueError('Hash algorithm not supported; try reconfiguring')
|
||||
self.configure()
|
||||
cksum = self.hashData(data)
|
||||
cksum_htype = cksum[checksum_type]
|
||||
if cksum == checksum:
|
||||
result = True
|
||||
else:
|
||||
result = False
|
||||
return(result)
|
||||
|
||||
def verifyFile(self, filepath, checksum, checksum_type, *args, **kwargs):
|
||||
filepath = os.path.abspath(os.path.expanduser(filepath))
|
||||
with open(filepath, 'rb') as fh:
|
||||
result = self.verifyData(fh.read(), checksum, checksum_type, **kwargs)
|
||||
return(result)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,29 @@
|
|||
import logging
|
||||
import re
|
||||
|
||||
|
||||
_logger = logging.getLogger('utils:{0}'.format(__name__))
|
||||
|
||||
|
||||
_uri_re = re.compile((r'^(?P<scheme>[\w]+)://'
|
||||
r'(?:(?P<user>[^:@]+)(?::(?P<password>[^@]+)?)?@)?'
|
||||
r'(?P<base>[^/:]+)?'
|
||||
r'(?::(?P<port>[0-9]+))?'
|
||||
r'(?P<path>/.*)$'),
|
||||
re.IGNORECASE)
|
||||
|
||||
|
||||
class URI(object):
|
||||
def __init__(self, uri):
|
||||
self.orig_uri = uri
|
||||
r = _uri_re.search(self.orig_uri)
|
||||
if not r:
|
||||
raise ValueError('Not a valid URI')
|
||||
for k, v in dict(zip(list(_uri_re.groupindex.keys()), r.groups())).items():
|
||||
setattr(self, k, v)
|
||||
if self.port:
|
||||
self.port = int(self.port)
|
||||
for a in ('base', 'scheme'):
|
||||
v = getattr(self, a)
|
||||
if v:
|
||||
setattr(self, a, v.lower())
|
||||
|
|
@ -0,0 +1,258 @@
|
|||
import ftplib
|
||||
import io
|
||||
import pathlib
|
||||
import re
|
||||
##
|
||||
import requests
|
||||
import requests.auth
|
||||
##
|
||||
import aif.constants_fallback
|
||||
from . import gpg_handler
|
||||
from . import hash_handler
|
||||
from . import parser
|
||||
|
||||
|
||||
class ChecksumFile(object):
|
||||
_bsd_re = re.compile(r'^(?P<fname>\(.*\))\s+=\s+(?P<cksum>.*)$')
|
||||
|
||||
def __init__(self, checksum_xml, filetype):
|
||||
self.xml = checksum_xml
|
||||
self.uri = self.xml.text.strip()
|
||||
self.filetype = filetype
|
||||
self.hashes = None
|
||||
downloader = getDLHandler(self.uri) # Recursive objects for the win?
|
||||
dl = downloader(self.xml)
|
||||
dl.get()
|
||||
self.data = dl.data.read()
|
||||
dl.data.seek(0, 0)
|
||||
self._convert()
|
||||
|
||||
def _convert(self):
|
||||
data = self.data
|
||||
if not isinstance(data, str):
|
||||
data = data.decode('utf-8')
|
||||
data.strip()
|
||||
self.hashes = {}
|
||||
if self.filetype not in ('gnu', 'bsd'):
|
||||
raise ValueError('filetype attribute must be either "gnu" or "bsd"')
|
||||
for line in data.splitlines():
|
||||
if self.filetype == 'gnu':
|
||||
hashtype = None # GNU style splits their hash types into separate files by default.
|
||||
h, fname = line.split(None, 1)
|
||||
elif self.filetype == 'bsd':
|
||||
l = line.split(None, 1)
|
||||
hashtype = l.pop(0).lower()
|
||||
r = self._bsd_re.search(l[0])
|
||||
h = r.group('cksum')
|
||||
fname = r.group('fname')
|
||||
if hashtype not in self.hashes:
|
||||
self.hashes[hashtype] = {}
|
||||
self.hashes[hashtype][fname] = h
|
||||
return(None)
|
||||
|
||||
|
||||
class Downloader(object):
|
||||
def __init__(self, netresource_xml, *args, **kwargs):
|
||||
self.xml = netresource_xml
|
||||
self.uri = parser.URI(self.xml.text.strip())
|
||||
self.user = self.xml.attrib.get('user')
|
||||
if not self.user and self.uri.user:
|
||||
self.user = self.uri.user
|
||||
self.password = self.xml.attrib.get('password')
|
||||
if not self.password and self.uri.password:
|
||||
self.password = self.uri.password
|
||||
self.real_uri = ('{0}://'
|
||||
'{1}'
|
||||
'{2}'
|
||||
'{3}').format(self.uri.scheme,
|
||||
(self.uri.base if self.uri.base else ''),
|
||||
(':{0}'.format(self.uri.port) if self.uri.port else ''),
|
||||
self.uri.path)
|
||||
self.gpg = None
|
||||
self.checksum = None
|
||||
self.data = io.BytesIO()
|
||||
|
||||
def get(self):
|
||||
pass # Dummy method.
|
||||
return(None)
|
||||
|
||||
def parseGpgVerify(self, results):
|
||||
pass
|
||||
|
||||
def verify(self, verify_xml, *args, **kwargs):
|
||||
gpg_xml = verify_xml.find('gpg')
|
||||
hash_xml = verify_xml.find('hash')
|
||||
results = {}
|
||||
if gpg_xml is not None:
|
||||
results['gpg'] = self.verifyGPG(gpg_xml)
|
||||
if hash_xml is not None:
|
||||
results['hash'] = self.verifyHash(hash_xml)
|
||||
return(results)
|
||||
|
||||
def verifyGPG(self, gpg_xml, *args, **kwargs):
|
||||
results = {}
|
||||
# We don't allow custom GPG homedirs since this is probably running from a LiveCD/USB/whatever anyways.
|
||||
# This means we can *always* instantiate the GPG handler from scratch.
|
||||
self.gpg = gpg_handler.GPG()
|
||||
keys_xml = gpg_xml.find('keys')
|
||||
sigs_xml = gpg_xml.find('sigs')
|
||||
fnargs = {'keyring_import': True}
|
||||
fnargs.update(kwargs)
|
||||
if keys_xml is not None:
|
||||
fnargs['keys'] = []
|
||||
for key_id_xml in keys_xml.findall('keyID'):
|
||||
if key_id_xml.text == 'auto':
|
||||
k = self.gpg.findKeyByID(aif.constants_fallback.ARCH_RELENG_KEY, **fnargs)
|
||||
elif key_id_xml.text == 'detect':
|
||||
fnargs['strict'] = False
|
||||
continue
|
||||
else:
|
||||
k = self.gpg.findKeyByID(key_id_xml.text.strip(), **fnargs)
|
||||
fnargs['keys'].append(k)
|
||||
for key_file_xml in keys_xml.findall('keyFile'):
|
||||
downloader = getDLHandler(key_file_xml.text.strip()) # Recursive objects for the win?
|
||||
dl = downloader(key_file_xml)
|
||||
dl.get()
|
||||
k = self.gpg.getKeyData(dl.data.read(), **fnargs)[0]
|
||||
dl.data.seek(0, 0)
|
||||
fnargs['keys'].extend(k)
|
||||
if sigs_xml is not None:
|
||||
for sig_text_xml in sigs_xml.findall('signature'):
|
||||
sig = sig_text_xml.text.strip()
|
||||
sigchk = self.gpg.verifyData(self.data.read(), detached = sig, **fnargs)
|
||||
self.data.seek(0, 0)
|
||||
results.update(sigchk)
|
||||
for sig_file_xml in sigs_xml.findall('signatureFile'):
|
||||
downloader = getDLHandler(sig_file_xml.text.strip())
|
||||
dl = downloader(sig_file_xml)
|
||||
dl.get()
|
||||
sigchk = self.gpg.verifyData(self.data.read(), detached = dl.data.read(), **fnargs)
|
||||
dl.data.seek(0, 0)
|
||||
self.data.seek(0, 0)
|
||||
results.update(sigchk)
|
||||
self.gpg.clean()
|
||||
return(results)
|
||||
|
||||
def verifyHash(self, hash_xml, *args, **kwargs):
|
||||
results = []
|
||||
algos = [str(ht) for ht in hash_xml.xpath('//checksum/@hashType|//checksumFile/@hashType')]
|
||||
self.checksum = hash_handler.Hash(hash_algos = algos)
|
||||
self.checksum.configure()
|
||||
checksum_xml = hash_xml.findall('checksum')
|
||||
checksum_file_xml = hash_xml.findall('checksumFile')
|
||||
checksums = self.checksum.hashData(self.data.read())
|
||||
self.data.seek(0, 0)
|
||||
if checksum_file_xml is not None:
|
||||
for cksum_xml in checksum_file_xml:
|
||||
htype = cksum_xml.attrib['hashType'].strip().lower()
|
||||
ftype = cksum_xml.attrib['fileType'].strip().lower()
|
||||
fname = cksum_xml.attrib.get('filePath',
|
||||
pathlib.PurePath(self.uri.path).name)
|
||||
cksum_file = ChecksumFile(cksum_xml, ftype)
|
||||
if ftype == 'gnu':
|
||||
cksum = cksum_file.hashes[None][fname]
|
||||
elif ftype == 'bsd':
|
||||
cksum = cksum_file.hashes[htype][fname]
|
||||
result = (cksum == checksums[htype])
|
||||
results.append(result)
|
||||
if checksum_xml is not None:
|
||||
for cksum_xml in checksum_xml:
|
||||
# Thankfully, this is a LOT easier.
|
||||
htype = cksum_xml.attrib['hashType'].strip().lower()
|
||||
result = (cksum_xml.text.strip().lower() == checksums[htype])
|
||||
results.append(result)
|
||||
result = all(results)
|
||||
return(result)
|
||||
|
||||
|
||||
class FSDownloader(Downloader):
|
||||
def __init__(self, netresource_xml, *args, **kwargs):
|
||||
super().__init__(netresource_xml, *args, **kwargs)
|
||||
delattr(self, 'user')
|
||||
delattr(self, 'password')
|
||||
|
||||
def get(self):
|
||||
self.data.seek(0, 0)
|
||||
with open(self.uri.path, 'rb') as fh:
|
||||
self.data.write(fh.read())
|
||||
self.data.seek(0, 0)
|
||||
return(None)
|
||||
|
||||
|
||||
class FTPDownloader(Downloader):
|
||||
def __init__(self, netresource_xml, *args, **kwargs):
|
||||
super().__init__(netresource_xml, *args, **kwargs)
|
||||
if not self.user:
|
||||
self.user = ''
|
||||
if not self.password:
|
||||
self.password = ''
|
||||
self.port = (self.uri.port if self.uri.port else 0)
|
||||
self._conn = None
|
||||
|
||||
def _connect(self):
|
||||
self._conn = ftplib.FTP()
|
||||
self._conn.connect(host = self.uri.base, port = self.port)
|
||||
self._conn.login(user = self.user, passwd = self.password)
|
||||
return(None)
|
||||
|
||||
def get(self):
|
||||
self._connect()
|
||||
self.data.seek(0, 0)
|
||||
self._conn.retrbinary('RETR {0}'.format(self.uri.path), self.data.write)
|
||||
self.data.seek(0, 0)
|
||||
self._close()
|
||||
return(None)
|
||||
|
||||
def _close(self):
|
||||
self._conn.quit()
|
||||
return(None)
|
||||
|
||||
|
||||
class FTPSDownloader(FTPDownloader):
|
||||
def __init__(self, netresource_xml, *args, **kwargs):
|
||||
super().__init__(netresource_xml, *args, **kwargs)
|
||||
|
||||
def _connect(self):
|
||||
self._conn = ftplib.FTP_TLS()
|
||||
self._conn.connect(host = self.uri.base, port = self.port)
|
||||
self._conn.login(user = self.user, passwd = self.password)
|
||||
self._conn.prot_p()
|
||||
return(None)
|
||||
|
||||
|
||||
class HTTPDownloader(Downloader):
|
||||
def __init__(self, netresource_xml, *args, **kwargs):
|
||||
super().__init__(netresource_xml, *args, **kwargs)
|
||||
self.auth = self.xml.attrib.get('authType', 'none').lower()
|
||||
if self.auth == 'none':
|
||||
self.auth = None
|
||||
self.realm = None
|
||||
self.user = None
|
||||
self.password = None
|
||||
else:
|
||||
if self.auth == 'basic':
|
||||
self.auth = requests.auth.HTTPBasicAuth(self.user, self.password)
|
||||
elif self.auth == 'digest':
|
||||
self.auth = requests.auth.HTTPDigestAuth(self.user, self.password)
|
||||
|
||||
def get(self):
|
||||
self.data.seek(0, 0)
|
||||
req = requests.get(self.real_uri, auth = self.auth)
|
||||
self.data.write(req.content)
|
||||
self.data.seek(0, 0)
|
||||
return(None)
|
||||
|
||||
|
||||
def getDLHandler(uri):
|
||||
uri = uri.strip()
|
||||
if re.search(r'^file://', uri, re.IGNORECASE):
|
||||
return(FSDownloader)
|
||||
elif re.search(r'^https?://', uri, re.IGNORECASE):
|
||||
return(HTTPDownloader)
|
||||
elif re.search(r'^ftp://', uri, re.IGNORECASE):
|
||||
return(FTPDownloader)
|
||||
elif re.search(r'^ftps://', uri, re.IGNORECASE):
|
||||
return(FTPSDownloader)
|
||||
else:
|
||||
raise RuntimeError('Could not detect which download handler to use')
|
||||
return(None)
|
||||
|
|
@ -129,7 +129,6 @@ Configure your bootloader to add the following options as necessary:
|
|||
^m|aif_auth |(see <<aif_url, below>>)
|
||||
^m|aif_username |(see <<aif_url, below>>)
|
||||
^m|aif_password |(see <<aif_url, below>>)
|
||||
^m|aif_realm |(see <<aif_url, below>>)
|
||||
|======================
|
||||
|
||||
[[aif_url]]
|
||||
|
|
@ -143,7 +142,6 @@ Configure your bootloader to add the following options as necessary:
|
|||
* If `aif_url` is an HTTP/HTTPS URL, then `aif_user` is the username to use with the https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#4xx_Client_errors[401^] (https://tools.ietf.org/html/rfc7235[RFC 7235^]) auth (via `aif_auth`).
|
||||
** If `aif_url` is an FTP/FTPS URI, then `aif_user` will be the FTP user.
|
||||
** The same behavior applies for `aif_password`.
|
||||
* If `aif_auth` is `digest`, this is the realm we would use (we attempt to "guess" if it isn’t specified); otherwise it is ignored.
|
||||
|
||||
== Building a compatible LiveCD
|
||||
The default Arch install CD does not have AIF installed (hopefully, this will change someday). You have two options for using AIF-NG.
|
||||
|
|
@ -537,7 +535,6 @@ The `/aif/scripts/script` elements specify scripts to be run at different stages
|
|||
^m|authtype |Same behavior as <<starting_an_install, `aif_auth`>> but for fetching this script (see also <<aif_url, further notes>> on this)
|
||||
^m|user |Same behavior as <<starting_an_install, `aif_user`>> but for fetching this script (see also <<aif_url, further notes>> on this)
|
||||
^m|password |Same behavior as <<starting_an_install, `aif_password`>> but for fetching this script (see also <<aif_url, further notes>> on this)
|
||||
^m|realm |Same behavior as <<starting_an_install, `aif_realm`>> but for fetching this script (see also <<aif_url, further notes>> on this)
|
||||
^m|execution |(see <<script_types, below>>)
|
||||
|======================
|
||||
|
||||
|
|
@ -556,6 +553,67 @@ Here you will find further info and other resources relating to AIF-NG.
|
|||
|
||||
== FAQ
|
||||
|
||||
=== "How do I make AIF-NG operate entirely offline?"
|
||||
|
||||
This is cooked right in, but takes a little extra work.
|
||||
|
||||
1.) First you'll need to locally clone the supporting XSD (XML schemas) that AIF-NG uses to verify the configuration file:
|
||||
|
||||
`/var/tmp/aif/xml`
|
||||
[source,bash]
|
||||
----
|
||||
mkdir -p /var/tmp/aif
|
||||
cd /var/tmp/aif
|
||||
git clone https://git.square-r00t.net/XML xml
|
||||
----
|
||||
|
||||
The path you clone it to isn't important as long as you're consistent below.
|
||||
|
||||
2.) Then edit your AIF-NG configuration file to source this directory for XML verification:
|
||||
|
||||
`aif.xml` (before)
|
||||
[source,xml]
|
||||
----
|
||||
xsi:schemaLocation="https://aif-ng.io/ http://schema.xml.r00t2.io/projects/aif.xsd"
|
||||
----
|
||||
|
||||
`aif.xml` (after)
|
||||
[source,xml]
|
||||
----
|
||||
xsi:schemaLocation="https://aif-ng.io/ file:///var/tmp/aif/xml/schema/projects/aif.xsd"
|
||||
----
|
||||
|
||||
The XSD files use includes with relative paths, so the rest of that is automagic.
|
||||
|
||||
3.) Use local file:// URIs in the rest of your AIF-NG configuration file.
|
||||
e.g.:
|
||||
|
||||
[source,xml]
|
||||
----
|
||||
<tarball>file:///var/tmp/aif/bootstrap.tar.gz</tarball>
|
||||
----
|
||||
|
||||
and
|
||||
|
||||
[source,xml]
|
||||
----
|
||||
<signatureFile>file:///var/tmp/aif/bootstrap.tar.gz.sig</signatureFile>
|
||||
----
|
||||
|
||||
etc.
|
||||
|
||||
Obviously you need to *download* those files to their respective destinations first, however.
|
||||
|
||||
4.) Lastly, ensure you only use local pacman mirrors in your config. This gets tricky because the chroot will not have a way to access the hosts filesystem without creating e.g. a bind mount beforehand.
|
||||
|
||||
As long as:
|
||||
|
||||
* No remote locations are specified in your AIF-NG configuration file...
|
||||
* *and it is completely and well defined*...
|
||||
* and your scripts don't make remote calls,
|
||||
|
||||
then it shouldn't try to perform any remote operations.
|
||||
|
||||
=== "I specified start sector as 0 for a GPT-labeled disk but it starts at sector 2048 instead. What gives?"
|
||||
GPT requires 33 sectors for the table at the beginning (and 32 sectors at the end) for the actual table. That plus an extra (usually) 512 bytes at the beginning for something called a https://en.wikipedia.org/wiki/GUID_Partition_Table#Protective_MBR_(LBA_0)[Protective MBR^] (this prevents disk utilities from overwriting the GPT label automatically in case they only recognize "msdos" labels and assume the disk is not formatted yet).
|
||||
|
||||
|
|
|
|||
|
|
@ -5,12 +5,20 @@
|
|||
chrootPath="/mnt/aif"
|
||||
reboot="false">
|
||||
<bootstrap>
|
||||
<tarball>https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz</tarball>
|
||||
<!-- <tarball>-->
|
||||
<!-- https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz-->
|
||||
<!-- </tarball>-->
|
||||
<tarball>
|
||||
file:///tmp/archlinux-bootstrap-2019.12.01-x86_64.tar.gz
|
||||
</tarball>
|
||||
<verify>
|
||||
<gpg>
|
||||
<sigs>
|
||||
<!-- <signatureFile>-->
|
||||
<!-- https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz.sig-->
|
||||
<!-- </signatureFile>-->
|
||||
<signatureFile>
|
||||
https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz.sig
|
||||
file:///tmp/archlinux-bootstrap-2019.12.01-x86_64.tar.gz.sig
|
||||
</signatureFile>
|
||||
</sigs>
|
||||
<keys>
|
||||
|
|
@ -18,8 +26,12 @@
|
|||
</keys>
|
||||
</gpg>
|
||||
<hash>
|
||||
<checksumFile hashType="md5">http://arch.mirror.square-r00t.net/iso/latest/md5sums.txt</checksumFile>
|
||||
<checksumFile hashType="sha1">http://arch.mirror.square-r00t.net/iso/latest/sha1sums.txt</checksumFile>
|
||||
<checksumFile hashType="md5" fileType="gnu">
|
||||
http://arch.mirror.square-r00t.net/iso/latest/md5sums.txt
|
||||
</checksumFile>
|
||||
<checksumFile hashType="sha1" fileType="gnu">
|
||||
http://arch.mirror.square-r00t.net/iso/latest/sha1sums.txt
|
||||
</checksumFile>
|
||||
</hash>
|
||||
</verify>
|
||||
</bootstrap>
|
||||
|
|
|
|||
Loading…
Reference in New Issue