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generate randum uuid function update. Add validation of uuid function

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This commit is contained in:
catborise 2018-10-04 09:31:30 +03:00
parent 7d21c138b7
commit d75df231a8
1 changed files with 26 additions and 2 deletions
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28
vrtManager/util.py
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@ -2,6 +2,7 @@ import random
import lxml.etree as etree
import libvirt
import string
import re
def is_kvm_available(xml):
@ -26,8 +27,11 @@ def randomMAC():
def randomUUID():
"""Generate a random UUID."""
u = [random.randint(0, 255) for dummy in range(0, 16)]
return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2, "%02x" * 6]) % tuple(u)
u = [random.randint(0, 255) for ignore in range(0, 16)]
u[6] = (u[6] & 0x0F) | (4 << 4)
u[8] = (u[8] & 0x3F) | (2 << 6)
return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2,
"%02x" * 6]) % tuple(u)
def randomPasswd(length=12, alphabet=string.letters + string.digits):
@ -129,3 +133,23 @@ def pretty_bytes(val):
return "%2.2f GB" % (val / (1024.0 * 1024.0 * 1024.0))
else:
return "%2.2f MB" % (val / (1024.0 * 1024.0))
def validate_uuid(val):
if type(val) is not str:
raise ValueError("UUID must be a string.")
form = re.match("[a-fA-F0-9]{8}[-]([a-fA-F0-9]{4}[-]){3}[a-fA-F0-9]{12}$",
val)
if form is None:
form = re.match("[a-fA-F0-9]{32}$", val)
if form is None:
raise ValueError(
"UUID must be a 32-digit hexadecimal number. It may take "
"the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx or may "
"omit hyphens altogether.")
else: # UUID had no dashes, so add them in
val = (val[0:8] + "-" + val[8:12] + "-" + val[12:16] +
"-" + val[16:20] + "-" + val[20:32])
return val