forked from s434596/CatOrNot
66 lines
2.0 KiB
Python
66 lines
2.0 KiB
Python
#
|
|
# This file is part of pyasn1-modules software.
|
|
#
|
|
# Copyright (c) 2005-2018, Ilya Etingof <etingof@gmail.com>
|
|
# License: http://snmplabs.com/pyasn1/license.html
|
|
#
|
|
import base64
|
|
import sys
|
|
|
|
stSpam, stHam, stDump = 0, 1, 2
|
|
|
|
|
|
# The markers parameters is in form ('start1', 'stop1'), ('start2', 'stop2')...
|
|
# Return is (marker-index, substrate)
|
|
def readPemBlocksFromFile(fileObj, *markers):
|
|
startMarkers = dict(map(lambda x: (x[1], x[0]),
|
|
enumerate(map(lambda y: y[0], markers))))
|
|
stopMarkers = dict(map(lambda x: (x[1], x[0]),
|
|
enumerate(map(lambda y: y[1], markers))))
|
|
idx = -1
|
|
substrate = ''
|
|
certLines = []
|
|
state = stSpam
|
|
while True:
|
|
certLine = fileObj.readline()
|
|
if not certLine:
|
|
break
|
|
certLine = certLine.strip()
|
|
if state == stSpam:
|
|
if certLine in startMarkers:
|
|
certLines = []
|
|
idx = startMarkers[certLine]
|
|
state = stHam
|
|
continue
|
|
if state == stHam:
|
|
if certLine in stopMarkers and stopMarkers[certLine] == idx:
|
|
state = stDump
|
|
else:
|
|
certLines.append(certLine)
|
|
if state == stDump:
|
|
if sys.version_info[0] <= 2:
|
|
substrate = ''.join([base64.b64decode(x) for x in certLines])
|
|
else:
|
|
substrate = ''.encode().join([base64.b64decode(x.encode()) for x in certLines])
|
|
break
|
|
return idx, substrate
|
|
|
|
|
|
# Backward compatibility routine
|
|
def readPemFromFile(fileObj,
|
|
startMarker='-----BEGIN CERTIFICATE-----',
|
|
endMarker='-----END CERTIFICATE-----'):
|
|
idx, substrate = readPemBlocksFromFile(fileObj, (startMarker, endMarker))
|
|
return substrate
|
|
|
|
|
|
def readBase64fromText(text):
|
|
if sys.version_info[0] <= 2:
|
|
return base64.b64decode(text)
|
|
else:
|
|
return base64.b64decode(text.encode())
|
|
|
|
|
|
def readBase64FromFile(fileObj):
|
|
return readBase64fromText(fileObj.read())
|