def base64_to_pem(base64_text, pem_type='cert'):
"""Format string of base64 text into PEM format
Input is assumed to consist only of members of the base64 alphabet
(i.e no whitepace). Use one of the filter functions from
base64utils to assure the input is clean
(i.e. strip_whitespace()).
:param base64_text: text containing ONLY base64 alphabet
characters to be inserted into PEM output.
:type base64_text: string
:param pem_type: Produce a PEM block for this type.
Valid types are: csr, cert, crl, cms, key.
(default: 'cert')
:type pem_type: string
:returns: string -- PEM formatted text
"""
pem_header = PEM_TYPE_TO_HEADER[pem_type]
buf = six.StringIO()
buf.write(u'-----BEGIN %s-----' % pem_header)
buf.write(u'\n')
for line in base64utils.base64_wrap_iter(base64_text, width=64):
buf.write(line)
buf.write(u'\n')
buf.write(u'-----END %s-----' % pem_header)
buf.write(u'\n')
text = buf.getvalue()
buf.close()
return text
def base64_to_pem(base64_text, pem_type='cert'):
"""Format string of base64 text into PEM format
Input is assumed to consist only of members of the base64 alphabet
(i.e no whitepace). Use one of the filter functions from
base64utils to assure the input is clean
(i.e. strip_whitespace()).
:param base64_text: text containing ONLY base64 alphabet
characters to be inserted into PEM output.
:type base64_text: string
:param pem_type: Produce a PEM block for this type.
Valid types are: csr, cert, crl, cms, key.
(default: 'cert')
:type pem_type: string
:returns: string -- PEM formatted text
"""
pem_header = PEM_TYPE_TO_HEADER[pem_type]
buf = six.StringIO()
buf.write(u'-----BEGIN %s-----' % pem_header)
buf.write(u'\n')
for line in base64utils.base64_wrap_iter(base64_text, width=64):
buf.write(line)
buf.write(u'\n')
buf.write(u'-----END %s-----' % pem_header)
buf.write(u'\n')
text = buf.getvalue()
buf.close()
return text
def test_wrapping(self):
raw_text = 'abcdefgh'
wrapped_text = 'abc\ndef\ngh\n'
self.assertEqual(wrapped_text,
base64utils.base64_wrap(raw_text, width=3))
t = '\n'.join(base64utils.base64_wrap_iter(raw_text, width=3)) + '\n'
self.assertEqual(wrapped_text, t)
raw_text = 'abcdefgh'
wrapped_text = 'abcd\nefgh\n'
self.assertEqual(wrapped_text,
base64utils.base64_wrap(raw_text, width=4))
def test_wrapping(self):
raw_text = 'abcdefgh'
wrapped_text = 'abc\ndef\ngh\n'
self.assertEqual(base64utils.base64_wrap(raw_text, width=3),
wrapped_text)
t = '\n'.join(base64utils.base64_wrap_iter(raw_text, width=3)) + '\n'
self.assertEqual(t, wrapped_text)
raw_text = 'abcdefgh'
wrapped_text = 'abcd\nefgh\n'
self.assertEqual(base64utils.base64_wrap(raw_text, width=4),
wrapped_text)