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XML validation is a LOT cleaner now

This commit is contained in:
brent s. 2019-12-11 04:32:07 -05:00
parent 06c99221d2
commit a1bc613979
7 changed files with 259 additions and 49 deletions
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7
aif/config/parser.py
View File

@ -36,6 +36,7 @@ class Config(object):
if not xsdpath:
xsdpath = self.xsd_path
raw_xsd = None
base_url = None
if xsdpath:
xsdpath = os.path.abspath(os.path.expanduser(xsdpath))
if not os.path.isfile(xsdpath):
@ -43,11 +44,12 @@ class Config(object):
'does not exist on the local filesystem'))
with open(xsdpath, 'rb') as fh:
raw_xsd = fh.read()
base_url = os.path.split(xsdpath)[0]
else:
xsi = self.xml.nsmap.get('xsi', 'http://www.w3.org/2001/XMLSchema-instance')
schemaLocation = '{{{0}}}schemaLocation'.format(xsi)
schemaURL = self.xml.attrib.get(schemaLocation,
'https://aif-ng.io/aif.xsd?ref={0}'.format(self.xml.attrib['version']))
'https://schema.xml.r00t2.io/projects/aif.xsd')
split_url = schemaURL.split()
if len(split_url) == 2: # a properly defined schemaLocation
schemaURL = split_url[1]
@ -58,7 +60,8 @@ class Config(object):
# TODO: logging!
raise RuntimeError('Could not download XSD')
raw_xsd = req.content
self.xsd = etree.XMLSchema(etree.XML(raw_xsd))
base_url = os.path.split(req.url)[0] # This makes me feel dirty.
self.xsd = etree.XMLSchema(etree.XML(raw_xsd, base_url = base_url))
return()

def parseRaw(self, parser = None):

3
aif/system/locales.py
View File

@ -1,4 +1,5 @@
import configparser
import copy
import io
import os
import re
@ -78,7 +79,7 @@ class Locale(object):
else:
ldef_name = _locale_def_re.sub(r'\g<1>\g<2>', locale)
lpath = os.path.join(localesrcdir, 'locales', ldef_name)
env = dict(os.environ).copy()
env = copy.deepycopy(dict(os.environ))
env['I18NPATH'] = localesrcdir
subprocess.run(['localedef',
'--force',

88
aif/utils.py → aif/utils/__init__.py
View File

@ -6,6 +6,10 @@ import shlex
import subprocess
##
import psutil
##
from . import file_handler
from . import gpg_handler
from . import hash_handler


def checkMounted(devpath):
@ -149,50 +153,50 @@ class _Sizer(object):
# 'decimal' is base-10, 'binary' is base-2. (Duh.)
# "b" = bytes, "n" = given value, and "u" = unit suffix's key in below notes.
self.storageUnits = {'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
0: (None, 'B', 'byte'),
3: ('k', 'kB', 'kilobyte'),
6: ('M', 'MB', 'megabyte'),
9: ('G', 'GB', 'gigabyte'),
12: ('T', 'TB', 'teraybte'),
13: ('P', 'PB', 'petabyte'), # yeah, right.
15: ('E', 'EB', 'exabyte'),
18: ('Z', 'ZB', 'zettabyte'),
19: ('Y', 'YB', 'yottabyte')
},
'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
-1: ('nybble', 'nibble', 'nyble', 'half-byte', 'tetrade', 'nibble'),
10: ('Ki', 'KiB', 'kibibyte'),
20: ('Mi', 'MiB', 'mebibyte'),
30: ('Gi', 'GiB', 'gibibyte'),
40: ('Ti', 'TiB', 'tebibyte'),
50: ('Pi', 'PiB', 'pebibyte'),
60: ('Ei', 'EiB', 'exbibyte'),
70: ('Zi', 'ZiB', 'zebibyte'),
80: ('Yi', 'YiB', 'yobibyte')
}}
0: (None, 'B', 'byte'),
3: ('k', 'kB', 'kilobyte'),
6: ('M', 'MB', 'megabyte'),
9: ('G', 'GB', 'gigabyte'),
12: ('T', 'TB', 'teraybte'),
13: ('P', 'PB', 'petabyte'), # yeah, right.
15: ('E', 'EB', 'exabyte'),
18: ('Z', 'ZB', 'zettabyte'),
19: ('Y', 'YB', 'yottabyte')
},
'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
-1: ('nybble', 'nibble', 'nyble', 'half-byte', 'tetrade', 'nibble'),
10: ('Ki', 'KiB', 'kibibyte'),
20: ('Mi', 'MiB', 'mebibyte'),
30: ('Gi', 'GiB', 'gibibyte'),
40: ('Ti', 'TiB', 'tebibyte'),
50: ('Pi', 'PiB', 'pebibyte'),
60: ('Ei', 'EiB', 'exbibyte'),
70: ('Zi', 'ZiB', 'zebibyte'),
80: ('Yi', 'YiB', 'yobibyte')
}}
# https://en.wikipedia.org/wiki/Bit#Multiple_bits - note that 8 bits = 1 byte
self.bwUnits = {'decimal': { # n * (10 ** u) = b; b / (10 ** u) = u
0: (None, 'b', 'bit'),
3: ('k', 'kb', 'kilobit'),
6: ('M', 'Mb', 'megabit'),
9: ('G', 'Gb', 'gigabit'),
12: ('T', 'Tb', 'terabit'),
13: ('P', 'Pb', 'petabit'),
15: ('E', 'Eb', 'exabit'),
18: ('Z', 'Zb', 'zettabit'),
19: ('Y', 'Yb', 'yottabit')
},
'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
-1: ('semi-octet', 'quartet', 'quadbit'),
10: ('Ki', 'Kib', 'kibibit'),
20: ('Mi', 'Mib', 'mebibit'),
30: ('Gi', 'Gib', 'gibibit'),
40: ('Ti', 'Tib', 'tebibit'),
50: ('Pi', 'Pib', 'pebibit'),
60: ('Ei', 'Eib', 'exbibit'),
70: ('Zi', 'Zib', 'zebibit'),
80: ('Yi', 'Yib', 'yobibit')
}}
0: (None, 'b', 'bit'),
3: ('k', 'kb', 'kilobit'),
6: ('M', 'Mb', 'megabit'),
9: ('G', 'Gb', 'gigabit'),
12: ('T', 'Tb', 'terabit'),
13: ('P', 'Pb', 'petabit'),
15: ('E', 'Eb', 'exabit'),
18: ('Z', 'Zb', 'zettabit'),
19: ('Y', 'Yb', 'yottabit')
},
'binary': { # n * (2 ** u) = b; b / (2 ** u) = u
-1: ('semi-octet', 'quartet', 'quadbit'),
10: ('Ki', 'Kib', 'kibibit'),
20: ('Mi', 'Mib', 'mebibit'),
30: ('Gi', 'Gib', 'gibibit'),
40: ('Ti', 'Tib', 'tebibit'),
50: ('Pi', 'Pib', 'pebibit'),
60: ('Ei', 'Eib', 'exbibit'),
70: ('Zi', 'Zib', 'zebibit'),
80: ('Yi', 'Yib', 'yobibit')
}}
self.valid_storage = []
for unit_type, convpair in self.storageUnits.items():
for f, l in convpair.items():

43
aif/utils/file_handler.py Normal file
View File

@ -0,0 +1,43 @@
import os
import pathlib


class File(object):
def __init__(self, file_path):
self.orig_path = file_path
self.fullpath = os.path.abspath(os.path.expanduser(self.orig_path))
self.path_rel = pathlib.PurePosixPath(self.orig_path)
self.path_full = pathlib.PurePosixPath(self.fullpath)


class Directory(object):
def __init__(self, dir_path):
self.orig_path = dir_path
self.fullpath = os.path.abspath(os.path.expanduser(self.orig_path))
self.path_rel = pathlib.PurePosixPath(self.orig_path)
self.path_full = pathlib.PurePosixPath(self.fullpath)
self.files = []
self.dirs = []

def populateFilesDirs(self, recursive = False):
if not recursive:
for i in os.listdir(self.fullpath):
if os.path.isdir(os.path.join(self.fullpath, i)):
self.dirs.append(i)
elif os.path.isfile(os.path.join(self.fullpath, i)):
self.files.append(i)
else:
for root, dirs, files in os.walk(self.fullpath):
for f in files:
fpath = os.path.join(root, f)
relfpath = pathlib.PurePosixPath(fpath).relative_to(self.path_full)
self.files.append(relfpath)
for d in dirs:
dpath = os.path.join(root, d)
reldpath = pathlib.PurePosixPath(dpath).relative_to(self.path_full)
self.dirs.append(reldpath)
if root not in self.dirs:
self.dirs.append(dirs)
self.dirs.sort()
self.files.sort()
return()

154
aif/utils/gpg_handler.py Normal file
View File

@ -0,0 +1,154 @@
import copy
import io
import os
import shutil
import tempfile
##
import gpg
import gpg.errors


class GPG(object):
def __init__(self, homedir = None, primary_key = None):
self.homedir = homedir
self.primary_key = primary_key
self.temporary = None
self.gpg = None
self._imported_keys = []

def _initContext(self):
if not self.homedir:
self.homedir = tempfile.mkdtemp(suffix = '.gpg', prefix = '.aif.')
self.homedir = os.path.abspath(os.path.expanduser(self.homedir))
self.temporary = False
if not os.path.isdir(self.homedir):
self.temporary = True
os.makedirs(self.homedir, exist_ok = True)
os.chmod(self.homedir, 0o0700)
self.gpg = gpg.Context(home_dir = self.homedir)
if self.temporary:
self.primary_key = self.createKey('AIF-NG File Verification Key', sign = True, force = True)
else:
self.primary_key = self.getKey(self.primary_key, secret = True)
return()

def clean(self):
# This is mostly just to cleanup the stuff we did before.
self.primary_key = self.primary_key.fpr
if self.temporary:
self.primary_key = None
shutil.rmtree(self.homedir)
self.gpg = None
return()

def createKey(self, userid, *args, **kwargs):
# algorithm=None, expires_in=0, expires=True, sign=False, encrypt=False, certify=False,
# authenticate=False, passphrase=None, force=False
keyinfo = {'userid': userid,
'algorithm': kwargs.get('algorithm', 'rsa4096'),
'expires_in': kwargs.get('expires_in'),
'sign': kwargs.get('sign', True),
'encrypt': kwargs.get('encrypt', False),
'certify': kwargs.get('certify', False),
'authenticate': kwargs.get('authenticate', False),
'passphrase': kwargs.get('passphrase'),
'force': kwargs.get('force')}
if not keyinfo['expires_in']:
del(keyinfo['expires_in'])
keyinfo['expires'] = False
k = self.gpg.create_key(**keyinfo)
return(k.fpr)

def findKey(self, searchstr, secret = False, local = True, remote = True,
secret_only = False, keyring_import = False):
fltr = 0
if secret:
fltr = fltr | gpg.constants.KEYLIST_MODE_WITH_SECRET
if local:
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)]
if keyring_import:
self.importKeys(keys, native = True)
return(keys)

def getKey(self, key_id, secret = False, strict = False):
try:
getattr(key_id, 'fpr')
return(key_id)
except AttributeError:
if not strict:
self.findKey(key_id, keyring_import = True)
try:
key = self.gpg.get_key(key_id, secret = secret)
except gpg.errors.KeyNotFound:
key = None
return(key)
return()

def getKeyFile(self, keyfile, keyring_import = False):
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)]
if keyring_import:
self.importKeys(keys, native = True)
return((keys, rawkey_data))

def getKeyStr(self, keydata, keyring_import = False):
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)]
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:
if not isinstance(keydata, list):
keydata = [keydata]
self.gpg.op_import_keys(keydata)
return()

def verifyData(self, data, keys = None, strict = False, detached = None, *args, **kwargs):
results = {}
if keys:
if not isinstance(keys, list):
keys = [self.getKey(keys)]
else:
keys = [self.getKey(k) for k in keys]
if isinstance(data, str):
data = data.encode('utf-8')
args = {'signed_data': data}
if detached:
if isinstance(detached, str):
detached = detached.encode('utf-8')
args['signature'] = detached
if strict:
if keys:
if not isinstance(keys, list):
keys = [keys]
args['verify'] = keys
results[None] = self.gpg.verify(**args)
else:
if keys:
for k in keys:
_args = copy.deepcopy(args)
_args['verify'] = [k]
results[k.fpr] = self.gpg.verify(**_args)
else:
results[None] = self.gpg.verify(**args)
return(results)

def verifyFile(self, filepath, *args, **kwargs):
filepath = os.path.abspath(os.path.expanduser(filepath))
with open(filepath, 'rb') as fh:
results = self.verifyData(fh.read(), **kwargs)
return(results)

0
aif/utils/hash_handler.py Normal file
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13
examples/aif.xml
View File

@ -1,16 +1,21 @@
<?xml version="1.0" encoding="UTF-8" ?>
<aif xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="https://aif-ng.io/"
xsi:schemaLocation="https://aif-ng.io/ https://schema.xml.r00t2.io/projects/aif.xsd"
xsi:schemaLocation="https://aif-ng.io/ http://schema.xml.r00t2.io/projects/aif.xsd"
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>
<verify>
<gpg>
<signatureFile>
https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz.sig
</signatureFile>
<sigs>
<signatureFile>
https://arch.mirror.square-r00t.net/iso/latest/archlinux-bootstrap-2019.12.01-x86_64.tar.gz.sig
</signatureFile>
</sigs>
<keys>
<keyID>0x4AA4767BBC9C4B1D18AE28B77F2D434B9741E8AC</keyID>
</keys>
</gpg>
<hash>
<checksumFile hashType="md5">http://arch.mirror.square-r00t.net/iso/latest/md5sums.txt</checksumFile>