Objective-C

Transition from Email.GetSignedByCertChain to Email.LastSignerCert

Provides instructions for replacing deprecated GetSignedByCertChain method calls with LastSignerCert. Objective-C

#import <CkoEmail.h>
#import <CkoCertChain.h>
#import <CkoCert.h>

BOOL success = NO;

CkoEmail *email = [[CkoEmail alloc] init];

//  ...
//  ...

//  ------------------------------------------------------------------------
//  The GetSignedByCertChain method is deprecated:

CkoCertChain *certChainObj = [email GetSignedByCertChain];
if (email.LastMethodSuccess == NO) {
    NSLog(@"%@",email.LastErrorText);
    return;
}

//  ...
//  ...

//  ------------------------------------------------------------------------
//  Do the equivalent using LastSignerCert to get the signing certificate,
//  then build the cert chain from the signing certificate object.

CkoCert *signerCert = [[CkoCert alloc] init];
success = [email LastSignerCert: [NSNumber numberWithInt: 0] cert: signerCert];
if (success == NO) {
    NSLog(@"%@",email.LastErrorText);
    return;
}

//  Get the certificate chain from the signer certificate.
CkoCertChain *certChain = [[CkoCertChain alloc] init];
success = [signerCert BuildCertChain: certChain];
if (success == NO) {
    NSLog(@"%@",signerCert.LastErrorText);
    return;
}