/* sort the subject cert list from newest to oldest */
PRIntn
nssCertificate_SubjectListSort (
void *v1,
void *v2
)
{
NSSCertificate *c1 = (NSSCertificate *)v1;
NSSCertificate *c2 = (NSSCertificate *)v2;
nssDecodedCert *dc1 = nssCertificate_GetDecoding(c1);
nssDecodedCert *dc2 = nssCertificate_GetDecoding(c2);
if (!dc1) {
return dc2 ? 1 : 0;
} else if (!dc2) {
return -1;
} else {
return dc1->isNewerThan(dc1, dc2) ? -1 : 1;
}
}
static NSSCertificate *
find_cert_issuer (
NSSCertificate *c,
NSSTime *timeOpt,
NSSUsage *usage,
NSSPolicies *policiesOpt,
NSSTrustDomain *td,
NSSCryptoContext *cc
)
{
NSSArena *arena;
NSSCertificate **certs = NULL;
NSSCertificate **ccIssuers = NULL;
NSSCertificate **tdIssuers = NULL;
NSSCertificate *issuer = NULL;
if (!cc)
cc = c->object.cryptoContext;
if (!td)
td = NSSCertificate_GetTrustDomain(c);
arena = nssArena_Create();
if (!arena) {
return (NSSCertificate *)NULL;
}
if (cc) {
ccIssuers = nssCryptoContext_FindCertificatesBySubject(cc,
&c->issuer,
NULL,
0,
arena);
}
if (td)
tdIssuers = nssTrustDomain_FindCertificatesBySubject(td,
&c->issuer,
NULL,
0,
arena);
certs = nssCertificateArray_Join(ccIssuers, tdIssuers);
if (certs) {
nssDecodedCert *dc = NULL;
void *issuerID = NULL;
dc = nssCertificate_GetDecoding(c);
if (dc) {
issuerID = dc->getIssuerIdentifier(dc);
}
/* XXX review based on CERT_FindCertIssuer
* this function is not using the authCertIssuer field as a fallback
* if authority key id does not exist
*/
if (issuerID) {
certs = filter_subject_certs_for_id(certs, issuerID);
}
certs = filter_certs_for_valid_issuers(certs);
issuer = nssCertificateArray_FindBestCertificate(certs,
timeOpt,
usage,
policiesOpt);
nssCertificateArray_Destroy(certs);
}
nssArena_Destroy(arena);
return issuer;
}
static CERTCertificate *
common_FindCertByNicknameOrEmailAddrForUsage(CERTCertDBHandle *handle,
const char *name, PRBool anyUsage,
SECCertUsage lookingForUsage)
{
NSSCryptoContext *cc;
NSSCertificate *c, *ct;
CERTCertificate *cert = NULL;
NSSUsage usage;
CERTCertList *certlist;
if (NULL == name) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
usage.anyUsage = anyUsage;
if (!anyUsage) {
usage.nss3lookingForCA = PR_FALSE;
usage.nss3usage = lookingForUsage;
}
cc = STAN_GetDefaultCryptoContext();
ct = NSSCryptoContext_FindBestCertificateByNickname(cc, name, NULL, &usage,
NULL);
if (!ct && PORT_Strchr(name, '@') != NULL) {
char *lowercaseName = CERT_FixupEmailAddr(name);
if (lowercaseName) {
ct = NSSCryptoContext_FindBestCertificateByEmail(
cc, lowercaseName, NULL, &usage, NULL);
PORT_Free(lowercaseName);
}
}
if (anyUsage) {
cert = PK11_FindCertFromNickname(name, NULL);
} else {
if (ct) {
/* Does ct really have the required usage? */
nssDecodedCert *dc;
dc = nssCertificate_GetDecoding(ct);
if (!dc->matchUsage(dc, &usage)) {
CERT_DestroyCertificate(STAN_GetCERTCertificateOrRelease(ct));
ct = NULL;
}
}
certlist = PK11_FindCertsFromNickname(name, NULL);
if (certlist) {
SECStatus rv =
CERT_FilterCertListByUsage(certlist, lookingForUsage, PR_FALSE);
if (SECSuccess == rv &&
!CERT_LIST_END(CERT_LIST_HEAD(certlist), certlist)) {
cert = CERT_DupCertificate(CERT_LIST_HEAD(certlist)->cert);
}
CERT_DestroyCertList(certlist);
}
}
if (cert) {
c = get_best_temp_or_perm(ct, STAN_GetNSSCertificate(cert));
CERT_DestroyCertificate(cert);
if (ct) {
CERT_DestroyCertificate(STAN_GetCERTCertificateOrRelease(ct));
}
} else {
c = ct;
}
return c ? STAN_GetCERTCertificateOrRelease(c) : NULL;
}
