(Visual FoxPro) 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.

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LOCAL loCsr
LOCAL loFac
LOCAL lcCsrPem
LOCAL lnSuccess
LOCAL loXml
LOCAL lcXmlStr

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Csr')
loCsr = CreateObject('Chilkat.Csr')

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.FileAccess')
loFac = CreateObject('Chilkat.FileAccess')
lcCsrPem = loFac.ReadEntireTextFile("qa_data/csr/sample.pem","utf-8")

lnSuccess = loCsr.LoadCsrPem(lcCsrPem)
IF (lnSuccess <> 1) THEN
    ? loCsr.LastErrorText
    RELEASE loCsr
    RELEASE loFac
    CANCEL
ENDIF

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Xml')
loXml = CreateObject('Chilkat.Xml')

lnSuccess = loCsr.GetExtensionRequest(loXml)
IF (lnSuccess <> 1) THEN
    ? "CSR has no extensionRequest."
    RELEASE loCsr
    RELEASE loFac
    RELEASE loXml
    CANCEL
ENDIF

lcXmlStr = loXml.GetXml()
? lcXmlStr

* 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

RELEASE loCsr
RELEASE loFac
RELEASE loXml