Chilkat2-Python

CSR Get Extension Request

See more CSR Examples

If a CSR contains a 1.2.840.113549.1.9.14 extensionRequest, then this method will return the extension request in XML format.

Note: This example requires Chilkat v9.5.0.91 or greater.

Chilkat2-Python

import sys
import chilkat2

success = False

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

csr = chilkat2.Csr()

# Load a CSR PEM file.  The file should contain content that looks like this:
# 
# 	-----BEGIN CERTIFICATE REQUEST-----
# 	MII...
# 	....
# 	....
# 	....
# 	-----END CERTIFICATE REQUEST-----

fac = chilkat2.FileAccess()
csrPem = fac.ReadEntireTextFile("qa_data/csr/sample.pem","utf-8")

success = csr.LoadCsrPem(csrPem)
if (success != True):
    print(csr.LastErrorText)
    sys.exit()

xml = chilkat2.Xml()

success = csr.GetExtensionRequest(xml)
if (success != True):
    print("CSR has no extensionRequest.")
    sys.exit()

xmlStr = xml.GetXml()
print(xmlStr)

# Sample output:

# <?xml version="1.0" encoding="utf-8"?>
# <set>
#     <sequence>
#         <sequence>
#             <oid>1.3.6.1.4.1.311.20.2</oid>
#             <asnOctets>
#                 <printable>ZATCA-Code-Signing</printable>
#             </asnOctets>
#         </sequence>
#         <sequence>
#             <oid>2.5.29.17</oid>
#             <asnOctets>
#                 <sequence>
#                     <contextSpecific tag="4" constructed="1">
#                         <sequence>
#                             <set>
#                                 <sequence>
#                                     <oid>2.5.4.4</oid>
#                                     <utf8>334623324234325</utf8>
#                                 </sequence>
#                             </set>
#                             <set>
#                                 <sequence>
#                                     <oid>0.9.2342.19200300.100.1.1</oid>
#                                     <utf8>310122393500003</utf8>
#                                 </sequence>
#                             </set>
#                             <set>
#                                 <sequence>
#                                     <oid>2.5.4.12</oid>
#                                     <utf8>0000</utf8>
#                                 </sequence>
#                             </set>
#                             <set>
#                                 <sequence>
#                                     <oid>2.5.4.26</oid>
#                                     <utf8>Sample E</utf8>
#                                 </sequence>
#                             </set>
#                             <set>
#                                 <sequence>
#                                     <oid>2.5.4.15</oid>
#                                     <utf8>Sample Business</utf8>
#                                 </sequence>
#                             </set>
#                         </sequence>
#                     </contextSpecific>
#                 </sequence>
#             </asnOctets>
#         </sequence>
#     </sequence>
# </set>

# Use this online tool to generate parsing code from sample XML: 
# Generate Parsing Code from XML