/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "prtime.h"

#include "cert.h"

#include "certi.h"

#include "certdb.h"

#include "secitem.h"

#include "secder.h"

/* Call to PK11_FreeSlot below */

#include "secasn1.h"

#include "secerr.h"

#include "nssilock.h"

#include "prmon.h"

#include "base64.h"

#include "sechash.h"

#include "plhash.h"

#include "pk11func.h" /* sigh */

#include "nsspki.h"

#include "pki.h"

#include "pkim.h"

#include "pki3hack.h"

#include "ckhelper.h"

#include "base.h"

#include "pkistore.h"

#include "dev3hack.h"

#include "dev.h"

#include "secmodi.h"

extern void CERT_MaybeLockCertTempPerm(const CERTCertificate *cert);

extern void CERT_MaybeUnlockCertTempPerm(const CERTCertificate *cert);

PRBool

SEC_CertNicknameConflict(const char *nickname, const SECItem *derSubject,

                         CERTCertDBHandle *handle)

{

    CERTCertificate *cert;

    PRBool conflict = PR_FALSE;

    cert = CERT_FindCertByNickname(handle, nickname);

    if (!cert) {

        return conflict;

    }

    conflict = !SECITEM_ItemsAreEqual(derSubject, &cert->derSubject);

    CERT_DestroyCertificate(cert);

    return conflict;

}

SECStatus

SEC_DeletePermCertificate(CERTCertificate *cert)

{

    PRStatus nssrv;

    NSSTrustDomain *td = STAN_GetDefaultTrustDomain();

    NSSCertificate *c = STAN_GetNSSCertificate(cert);

    CERTCertTrust *certTrust;

    if (c == NULL) {

        /* error code is set */

        return SECFailure;

    }

    certTrust = nssTrust_GetCERTCertTrustForCert(c, cert);

    if (certTrust) {

        NSSTrust *nssTrust = nssTrustDomain_FindTrustForCertificate(td, c);

        if (nssTrust) {

            nssrv = STAN_DeleteCertTrustMatchingSlot(c);

            if (nssrv != PR_SUCCESS) {

                CERT_MapStanError();

            }

            /* This call always returns PR_SUCCESS! */

            (void)nssTrust_Destroy(nssTrust);

        }

    }

    /* get rid of the token instances */

    nssrv = NSSCertificate_DeleteStoredObject(c, NULL);

    /* get rid of the cache entry */

    nssTrustDomain_LockCertCache(td);

    nssTrustDomain_RemoveCertFromCacheLOCKED(td, c);

    nssTrustDomain_UnlockCertCache(td);

    return (nssrv == PR_SUCCESS) ? SECSuccess : SECFailure;

}

SECStatus

CERT_GetCertTrust(const CERTCertificate *cert, CERTCertTrust *trust)

{

    SECStatus rv;

    CERT_LockCertTrust(cert);

    if (!cert || cert->trust == NULL) {

        rv = SECFailure;

    } else {

        *trust = *cert->trust;

        rv = SECSuccess;

    }

    CERT_UnlockCertTrust(cert);

    return (rv);

}

extern const NSSError NSS_ERROR_NO_ERROR;

extern const NSSError NSS_ERROR_INTERNAL_ERROR;

extern const NSSError NSS_ERROR_NO_MEMORY;

extern const NSSError NSS_ERROR_INVALID_POINTER;

extern const NSSError NSS_ERROR_INVALID_ARENA;

extern const NSSError NSS_ERROR_INVALID_ARENA_MARK;

extern const NSSError NSS_ERROR_DUPLICATE_POINTER;

extern const NSSError NSS_ERROR_POINTER_NOT_REGISTERED;

extern const NSSError NSS_ERROR_TRACKER_NOT_EMPTY;

extern const NSSError NSS_ERROR_TRACKER_NOT_INITIALIZED;

extern const NSSError NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD;

extern const NSSError NSS_ERROR_VALUE_TOO_LARGE;

extern const NSSError NSS_ERROR_UNSUPPORTED_TYPE;

extern const NSSError NSS_ERROR_BUFFER_TOO_SHORT;

extern const NSSError NSS_ERROR_INVALID_ATOB_CONTEXT;

extern const NSSError NSS_ERROR_INVALID_BASE64;

extern const NSSError NSS_ERROR_INVALID_BTOA_CONTEXT;

extern const NSSError NSS_ERROR_INVALID_ITEM;

extern const NSSError NSS_ERROR_INVALID_STRING;

extern const NSSError NSS_ERROR_INVALID_ASN1ENCODER;

extern const NSSError NSS_ERROR_INVALID_ASN1DECODER;

extern const NSSError NSS_ERROR_INVALID_BER;

extern const NSSError NSS_ERROR_INVALID_ATAV;

extern const NSSError NSS_ERROR_INVALID_ARGUMENT;

extern const NSSError NSS_ERROR_INVALID_UTF8;

extern const NSSError NSS_ERROR_INVALID_NSSOID;

extern const NSSError NSS_ERROR_UNKNOWN_ATTRIBUTE;

extern const NSSError NSS_ERROR_NOT_FOUND;

extern const NSSError NSS_ERROR_INVALID_PASSWORD;

extern const NSSError NSS_ERROR_USER_CANCELED;

extern const NSSError NSS_ERROR_MAXIMUM_FOUND;

extern const NSSError NSS_ERROR_CERTIFICATE_ISSUER_NOT_FOUND;

extern const NSSError NSS_ERROR_CERTIFICATE_IN_CACHE;

extern const NSSError NSS_ERROR_HASH_COLLISION;

extern const NSSError NSS_ERROR_DEVICE_ERROR;

extern const NSSError NSS_ERROR_INVALID_CERTIFICATE;

extern const NSSError NSS_ERROR_BUSY;

extern const NSSError NSS_ERROR_ALREADY_INITIALIZED;

extern const NSSError NSS_ERROR_PKCS11;

/* Look at the stan error stack and map it to NSS 3 errors */

#define STAN_MAP_ERROR(x, y) \

    else if (error == (x)) { secError = y; }

/*

 * map Stan errors into NSS errors

 * This function examines the stan error stack and automatically sets

 * PORT_SetError(); to the appropriate SEC_ERROR value.

 */

void

CERT_MapStanError()

{

    PRInt32 *errorStack;

    NSSError error, prevError;

    int secError;

    int i;

    errorStack = NSS_GetErrorStack();

    if (errorStack == 0) {

        PORT_SetError(0);

        return;

    }

    error = prevError = CKR_GENERAL_ERROR;

    /* get the 'top 2' error codes from the stack */

    for (i = 0; errorStack[i]; i++) {

        prevError = error;

        error = errorStack[i];

    }

    if (error == NSS_ERROR_PKCS11) {

        /* map it */

        secError = PK11_MapError(prevError);

    }

    STAN_MAP_ERROR(NSS_ERROR_NO_ERROR, 0)

    STAN_MAP_ERROR(NSS_ERROR_NO_MEMORY, SEC_ERROR_NO_MEMORY)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_BASE64, SEC_ERROR_BAD_DATA)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_BER, SEC_ERROR_BAD_DER)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ATAV, SEC_ERROR_INVALID_AVA)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_PASSWORD, SEC_ERROR_BAD_PASSWORD)

    STAN_MAP_ERROR(NSS_ERROR_BUSY, SEC_ERROR_BUSY)

    STAN_MAP_ERROR(NSS_ERROR_DEVICE_ERROR, SEC_ERROR_IO)

    STAN_MAP_ERROR(NSS_ERROR_CERTIFICATE_ISSUER_NOT_FOUND,

                   SEC_ERROR_UNKNOWN_ISSUER)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_CERTIFICATE, SEC_ERROR_CERT_NOT_VALID)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_UTF8, SEC_ERROR_BAD_DATA)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_NSSOID, SEC_ERROR_BAD_DATA)

    /* these are library failure for lack of a better error code */

    STAN_MAP_ERROR(NSS_ERROR_NOT_FOUND, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_CERTIFICATE_IN_CACHE, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_MAXIMUM_FOUND, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_USER_CANCELED, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_TRACKER_NOT_INITIALIZED, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_ALREADY_INITIALIZED, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_ARENA_MARKED_BY_ANOTHER_THREAD,

                   SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_HASH_COLLISION, SEC_ERROR_LIBRARY_FAILURE)

    STAN_MAP_ERROR(NSS_ERROR_INTERNAL_ERROR, SEC_ERROR_LIBRARY_FAILURE)

    /* these are all invalid arguments */

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ARGUMENT, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_POINTER, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ARENA, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ARENA_MARK, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_DUPLICATE_POINTER, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_POINTER_NOT_REGISTERED, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_TRACKER_NOT_EMPTY, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_VALUE_TOO_LARGE, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_UNSUPPORTED_TYPE, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_BUFFER_TOO_SHORT, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ATOB_CONTEXT, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_BTOA_CONTEXT, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ITEM, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_STRING, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ASN1ENCODER, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_INVALID_ASN1DECODER, SEC_ERROR_INVALID_ARGS)

    STAN_MAP_ERROR(NSS_ERROR_UNKNOWN_ATTRIBUTE, SEC_ERROR_INVALID_ARGS)

    else { secError = SEC_ERROR_LIBRARY_FAILURE; }

    PORT_SetError(secError);

}

SECStatus

CERT_ChangeCertTrust(CERTCertDBHandle *handle, CERTCertificate *cert,

                     CERTCertTrust *trust)

{

    SECStatus rv = SECSuccess;

    PRStatus ret;

    ret = STAN_ChangeCertTrust(cert, trust);

    if (ret != PR_SUCCESS) {

        rv = SECFailure;

        CERT_MapStanError();

    }

    return rv;

}

extern const NSSError NSS_ERROR_INVALID_CERTIFICATE;

SECStatus

__CERT_AddTempCertToPerm(CERTCertificate *cert, char *nickname,

                         CERTCertTrust *trust)

{

    NSSUTF8 *stanNick;

    PK11SlotInfo *slot;

    NSSToken *internal;

    NSSCryptoContext *context;

    nssCryptokiObject *permInstance;

    NSSCertificate *c = STAN_GetNSSCertificate(cert);

    nssCertificateStoreTrace lockTrace = { NULL, NULL, PR_FALSE, PR_FALSE };

    nssCertificateStoreTrace unlockTrace = { NULL, NULL, PR_FALSE, PR_FALSE };

    SECStatus rv;

    PRStatus ret;

    if (c == NULL) {

        CERT_MapStanError();

        return SECFailure;

    }

    context = c->object.cryptoContext;

    if (!context) {

        PORT_SetError(SEC_ERROR_ADDING_CERT);

        return SECFailure; /* wasn't a temp cert */

    }

    stanNick = nssCertificate_GetNickname(c, NULL);

    if (stanNick && nickname && strcmp(nickname, stanNick) != 0) {

        /* different: take the new nickname */

        cert->nickname = NULL;

        nss_ZFreeIf(stanNick);

        stanNick = NULL;

    }

    if (!stanNick && nickname) {

        /* Either there was no nickname yet, or we have a new nickname */

        stanNick = nssUTF8_Duplicate((NSSUTF8 *)nickname, NULL);

    } /* else: old stanNick is identical to new nickname */

    /* Delete the temp instance */

    nssCertificateStore_Lock(context->certStore, &lockTrace);

    nssCertificateStore_RemoveCertLOCKED(context->certStore, c);

    nssCertificateStore_Unlock(context->certStore, &lockTrace, &unlockTrace);

    c->object.cryptoContext = NULL;

    /* if the id has not been set explicitly yet, create one from the public

     * key. */

    if (c->id.data == NULL) {

        SECItem *keyID = pk11_mkcertKeyID(cert);

        if (keyID) {

            nssItem_Create(c->object.arena, &c->id, keyID->len, keyID->data);

            SECITEM_FreeItem(keyID, PR_TRUE);

        }

        /* if any of these failed, continue with our null c->id */

    }

    /* Import the perm instance onto the internal token */

    slot = PK11_GetInternalKeySlot();

    internal = PK11Slot_GetNSSToken(slot);

    if (!internal) {

        PK11_FreeSlot(slot);

        PORT_SetError(SEC_ERROR_NO_TOKEN);

        return SECFailure;

    }

    permInstance = nssToken_ImportCertificate(

        internal, NULL, NSSCertificateType_PKIX, &c->id, stanNick, &c->encoding,

        &c->issuer, &c->subject, &c->serial, cert->emailAddr, PR_TRUE);

    (void)nssToken_Destroy(internal);

    nss_ZFreeIf(stanNick);

    stanNick = NULL;

    PK11_FreeSlot(slot);

    if (!permInstance) {

        if (NSS_GetError() == NSS_ERROR_INVALID_CERTIFICATE) {

            PORT_SetError(SEC_ERROR_REUSED_ISSUER_AND_SERIAL);

        }

        return SECFailure;

    }

    nssPKIObject_AddInstance(&c->object, permInstance);

    nssTrustDomain_AddCertsToCache(STAN_GetDefaultTrustDomain(), &c, 1);

    /* reset the CERTCertificate fields */

    CERT_LockCertTempPerm(cert);

    cert->nssCertificate = NULL;

    CERT_UnlockCertTempPerm(cert);

    cert = STAN_GetCERTCertificateOrRelease(c); /* should return same pointer */

    if (!cert) {

        CERT_MapStanError();

        return SECFailure;

    }

    CERT_LockCertTempPerm(cert);

    cert->istemp = PR_FALSE;

    cert->isperm = PR_TRUE;

    CERT_UnlockCertTempPerm(cert);

    if (!trust) {

        return SECSuccess;

    }

    ret = STAN_ChangeCertTrust(cert, trust);

    rv = SECSuccess;

    if (ret != PR_SUCCESS) {

        rv = SECFailure;

        CERT_MapStanError();

    }

    return rv;

}

SECStatus

CERT_AddTempCertToPerm(CERTCertificate *cert, char *nickname,

                       CERTCertTrust *trust)

{

    return __CERT_AddTempCertToPerm(cert, nickname, trust);

}

CERTCertificate *

CERT_NewTempCertificate(CERTCertDBHandle *handle, SECItem *derCert,

                        char *nickname, PRBool isperm, PRBool copyDER)

{

    NSSCertificate *c;

    CERTCertificate *cc;

    NSSCertificate *tempCert = NULL;

    nssPKIObject *pkio;

    NSSCryptoContext *gCC = STAN_GetDefaultCryptoContext();

    NSSTrustDomain *gTD = STAN_GetDefaultTrustDomain();

    if (!isperm) {

        NSSDER encoding;

        NSSITEM_FROM_SECITEM(&encoding, derCert);

        /* First, see if it is already a temp cert */

        c = NSSCryptoContext_FindCertificateByEncodedCertificate(gCC,

                                                                 &encoding);

        if (!c && handle) {

            /* Then, see if it is already a perm cert */

            c = NSSTrustDomain_FindCertificateByEncodedCertificate(handle,

                                                                   &encoding);

        }

        if (c) {

            /* actually, that search ends up going by issuer/serial,

             * so it is still possible to return a cert with the same

             * issuer/serial but a different encoding, and we're

             * going to reject that

             */

            if (!nssItem_Equal(&c->encoding, &encoding, NULL)) {

                nssCertificate_Destroy(c);

                PORT_SetError(SEC_ERROR_REUSED_ISSUER_AND_SERIAL);

                cc = NULL;

            } else {

                cc = STAN_GetCERTCertificateOrRelease(c);

                if (cc == NULL) {

                    CERT_MapStanError();

                }

            }

            return cc;

        }

    }

    pkio = nssPKIObject_Create(NULL, NULL, gTD, gCC, nssPKIMonitor);

    if (!pkio) {

        CERT_MapStanError();

        return NULL;

    }

    c = nss_ZNEW(pkio->arena, NSSCertificate);

    if (!c) {

        CERT_MapStanError();

        nssPKIObject_Destroy(pkio);

        return NULL;

    }

    c->object = *pkio;

    if (copyDER) {

        nssItem_Create(c->object.arena, &c->encoding, derCert->len,

                       derCert->data);

    } else {

        NSSITEM_FROM_SECITEM(&c->encoding, derCert);

    }

    /* Forces a decoding of the cert in order to obtain the parts used

     * below

     */

    /* 'c' is not adopted here, if we fail loser frees what has been

     * allocated so far for 'c' */

    cc = STAN_GetCERTCertificate(c);

    if (!cc) {

        CERT_MapStanError();

        goto loser;

    }

    nssItem_Create(c->object.arena, &c->issuer, cc->derIssuer.len,

                   cc->derIssuer.data);

    nssItem_Create(c->object.arena, &c->subject, cc->derSubject.len,

                   cc->derSubject.data);

    /* CERTCertificate stores serial numbers decoded.  I need the DER

     * here.  sigh.

     */

    SECItem derSerial = { 0 };

    CERT_SerialNumberFromDERCert(&cc->derCert, &derSerial);

    if (!derSerial.data)

        goto loser;

    nssItem_Create(c->object.arena, &c->serial, derSerial.len,

                   derSerial.data);

    PORT_Free(derSerial.data);

    if (nickname) {

        c->object.tempName =

            nssUTF8_Create(c->object.arena, nssStringType_UTF8String,

                           (NSSUTF8 *)nickname, PORT_Strlen(nickname));

    }

    if (cc->emailAddr && cc->emailAddr[0]) {

        c->email = nssUTF8_Create(

            c->object.arena, nssStringType_PrintableString,

            (NSSUTF8 *)cc->emailAddr, PORT_Strlen(cc->emailAddr));

    }

    tempCert = NSSCryptoContext_FindOrImportCertificate(gCC, c);

    if (!tempCert) {

        CERT_MapStanError();

        goto loser;

    }

    /* destroy our copy */

    NSSCertificate_Destroy(c);

    /* and use the stored entry */

    c = tempCert;

    cc = STAN_GetCERTCertificateOrRelease(c);

    if (!cc) {

        /* STAN_GetCERTCertificateOrRelease destroys c on failure. */

        CERT_MapStanError();

        return NULL;

    }

    CERT_LockCertTempPerm(cc);

    cc->istemp = PR_TRUE;

    cc->isperm = PR_FALSE;

    CERT_UnlockCertTempPerm(cc);

    return cc;

loser:

    /* Perhaps this should be nssCertificate_Destroy(c) */

    nssPKIObject_Destroy(&c->object);

    return NULL;

}

/* This symbol is exported for backward compatibility. */

CERTCertificate *

__CERT_NewTempCertificate(CERTCertDBHandle *handle, SECItem *derCert,

                          char *nickname, PRBool isperm, PRBool copyDER)

{

    return CERT_NewTempCertificate(handle, derCert, nickname, isperm, copyDER);

}

static CERTCertificate *

common_FindCertByIssuerAndSN(CERTCertDBHandle *handle,

                             CERTIssuerAndSN *issuerAndSN,

                             void *wincx)

{

    PK11SlotInfo *slot;

    CERTCertificate *cert;

    cert = PK11_FindCertByIssuerAndSN(&slot, issuerAndSN, wincx);

    if (cert && slot) {

        PK11_FreeSlot(slot);

    }

    return cert;

}

/* maybe all the wincx's should be some const for internal token login? */

CERTCertificate *

CERT_FindCertByIssuerAndSN(CERTCertDBHandle *handle,

                           CERTIssuerAndSN *issuerAndSN)

{

    return common_FindCertByIssuerAndSN(handle, issuerAndSN, NULL);

}

/* maybe all the wincx's should be some const for internal token login? */

CERTCertificate *

CERT_FindCertByIssuerAndSNCX(CERTCertDBHandle *handle,

                             CERTIssuerAndSN *issuerAndSN,

                             void *wincx)

{

    return common_FindCertByIssuerAndSN(handle, issuerAndSN, wincx);

}

static NSSCertificate *

get_best_temp_or_perm(NSSCertificate *ct, NSSCertificate *cp)

{

    NSSUsage usage;

    NSSCertificate *arr[3];

    if (!ct) {

        return nssCertificate_AddRef(cp);

    } else if (!cp) {

        return nssCertificate_AddRef(ct);

    }

    arr[0] = ct;

    arr[1] = cp;

    arr[2] = NULL;

    usage.anyUsage = PR_TRUE;

    return nssCertificateArray_FindBestCertificate(arr, NULL, &usage, NULL);

}

CERTCertificate *

CERT_FindCertByName(CERTCertDBHandle *handle, SECItem *name)

{

    NSSCertificate *cp, *ct, *c;

    NSSDER subject;

    NSSUsage usage;

    NSSCryptoContext *cc;

    NSSITEM_FROM_SECITEM(&subject, name);

    usage.anyUsage = PR_TRUE;

    cc = STAN_GetDefaultCryptoContext();

    ct = NSSCryptoContext_FindBestCertificateBySubject(cc, &subject, NULL,

                                                       &usage, NULL);

    cp = NSSTrustDomain_FindBestCertificateBySubject(handle, &subject, NULL,

                                                     &usage, NULL);

    c = get_best_temp_or_perm(ct, cp);

    if (ct) {

        CERT_DestroyCertificate(STAN_GetCERTCertificateOrRelease(ct));

    }

    if (cp) {

        CERT_DestroyCertificate(STAN_GetCERTCertificateOrRelease(cp));

    }

    return c ? STAN_GetCERTCertificateOrRelease(c) : NULL;

}

CERTCertificate *

CERT_FindCertByKeyID(CERTCertDBHandle *handle, SECItem *name, SECItem *keyID)

{

    CERTCertList *list;

    CERTCertificate *cert = NULL;

    CERTCertListNode *node;

    list = CERT_CreateSubjectCertList(NULL, handle, name, 0, PR_FALSE);

    if (list == NULL)

        return NULL;

    node = CERT_LIST_HEAD(list);

    while (!CERT_LIST_END(node, list)) {

        if (node->cert &&

            SECITEM_ItemsAreEqual(&node->cert->subjectKeyID, keyID)) {

            cert = CERT_DupCertificate(node->cert);

            goto done;

        }

        node = CERT_LIST_NEXT(node);

    }

    PORT_SetError(SEC_ERROR_UNKNOWN_ISSUER);

done:

    CERT_DestroyCertList(list);

    return cert;

}

CERTCertificate *

CERT_FindCertByNickname(CERTCertDBHandle *handle, const char *nickname)

{

    NSSCryptoContext *cc;

    NSSCertificate *c, *ct;

    CERTCertificate *cert;

    NSSUsage usage;

    usage.anyUsage = PR_TRUE;

    cc = STAN_GetDefaultCryptoContext();

    ct = NSSCryptoContext_FindBestCertificateByNickname(cc, nickname, NULL,

                                                        &usage, NULL);

    cert = PK11_FindCertFromNickname(nickname, NULL);

    c = NULL;

    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;

}

CERTCertificate *

CERT_FindCertByDERCert(CERTCertDBHandle *handle, SECItem *derCert)

{

    NSSCryptoContext *cc;

    NSSCertificate *c;

    NSSDER encoding;

    NSSITEM_FROM_SECITEM(&encoding, derCert);

    cc = STAN_GetDefaultCryptoContext();

    c = NSSCryptoContext_FindCertificateByEncodedCertificate(cc, &encoding);

    if (!c) {

        c = NSSTrustDomain_FindCertificateByEncodedCertificate(handle,

                                                               &encoding);

        if (!c)

            return NULL;

    }

    return STAN_GetCERTCertificateOrRelease(c);

}

static CERTCertificate *

common_FindCertByNicknameOrEmailAddrForUsage(CERTCertDBHandle *handle,

                                             const char *name, PRBool anyUsage,

                                             SECCertUsage lookingForUsage,

                                             void *wincx)

{

    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, wincx);

    } 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, wincx);

        if (certlist) {

            SECStatus rv =

                CERT_FilterCertListByUsage(certlist, lookingForUsage, PR_FALSE);

            if (SECSuccess == rv && !CERT_LIST_EMPTY(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;

}

CERTCertificate *

CERT_FindCertByNicknameOrEmailAddr(CERTCertDBHandle *handle, const char *name)

{

    return common_FindCertByNicknameOrEmailAddrForUsage(handle, name, PR_TRUE,

                                                        0, NULL);

}

CERTCertificate *

CERT_FindCertByNicknameOrEmailAddrCX(CERTCertDBHandle *handle, const char *name,

                                     void *wincx)

{

    return common_FindCertByNicknameOrEmailAddrForUsage(handle, name, PR_TRUE,

                                                        0, wincx);

}

CERTCertificate *

CERT_FindCertByNicknameOrEmailAddrForUsage(CERTCertDBHandle *handle,

                                           const char *name,

                                           SECCertUsage lookingForUsage)

{

    return common_FindCertByNicknameOrEmailAddrForUsage(handle, name, PR_FALSE,

                                                        lookingForUsage, NULL);

}

CERTCertificate *

CERT_FindCertByNicknameOrEmailAddrForUsageCX(CERTCertDBHandle *handle,

                                             const char *name,

                                             SECCertUsage lookingForUsage,

                                             void *wincx)

{

    return common_FindCertByNicknameOrEmailAddrForUsage(handle, name, PR_FALSE,

                                                        lookingForUsage, wincx);

}

static void

add_to_subject_list(CERTCertList *certList, CERTCertificate *cert,

                    PRBool validOnly, PRTime sorttime)

{

    SECStatus secrv;

    if (!validOnly ||

        CERT_CheckCertValidTimes(cert, sorttime, PR_FALSE) ==

            secCertTimeValid) {

        secrv = CERT_AddCertToListSorted(certList, cert, CERT_SortCBValidity,

                                         (void *)&sorttime);

        if (secrv != SECSuccess) {

            CERT_DestroyCertificate(cert);

        }

    } else {

        CERT_DestroyCertificate(cert);

    }

}

CERTCertList *

CERT_CreateSubjectCertList(CERTCertList *certList, CERTCertDBHandle *handle,

                           const SECItem *name, PRTime sorttime,

                           PRBool validOnly)

{

    NSSCryptoContext *cc;

    NSSCertificate **tSubjectCerts, **pSubjectCerts;

    NSSCertificate **ci;

    CERTCertificate *cert;

    NSSDER subject;

    PRBool myList = PR_FALSE;

    cc = STAN_GetDefaultCryptoContext();

    NSSITEM_FROM_SECITEM(&subject, name);

    /* Collect both temp and perm certs for the subject */

    tSubjectCerts =

        NSSCryptoContext_FindCertificatesBySubject(cc, &subject, NULL, 0, NULL);

    pSubjectCerts = NSSTrustDomain_FindCertificatesBySubject(handle, &subject,

                                                             NULL, 0, NULL);

    if (!tSubjectCerts && !pSubjectCerts) {

        return NULL;

    }

    if (certList == NULL) {

        certList = CERT_NewCertList();

        myList = PR_TRUE;

        if (!certList)

            goto loser;

    }

    /* Iterate over the matching temp certs.  Add them to the list */

    ci = tSubjectCerts;

    while (ci && *ci) {

        cert = STAN_GetCERTCertificateOrRelease(*ci);

        /* *ci may be invalid at this point, don't reference it again */

        if (cert) {

            /* NOTE: add_to_subject_list adopts the incoming cert. */

            add_to_subject_list(certList, cert, validOnly, sorttime);

        }

        ci++;

    }

    /* Iterate over the matching perm certs.  Add them to the list */

    ci = pSubjectCerts;

    while (ci && *ci) {

        cert = STAN_GetCERTCertificateOrRelease(*ci);

        /* *ci may be invalid at this point, don't reference it again */

        if (cert) {

            /* NOTE: add_to_subject_list adopts the incoming cert. */

            add_to_subject_list(certList, cert, validOnly, sorttime);

        }

        ci++;

    }

    /* all the references have been adopted or freed at this point, just

     * free the arrays now */

    nss_ZFreeIf(tSubjectCerts);

    nss_ZFreeIf(pSubjectCerts);

    return certList;

loser:

    /* need to free the references in tSubjectCerts and pSubjectCerts! */

    nssCertificateArray_Destroy(tSubjectCerts);

    nssCertificateArray_Destroy(pSubjectCerts);

    if (myList && certList != NULL) {

        CERT_DestroyCertList(certList);

    }

    return NULL;

}

void

CERT_DestroyCertificate(CERTCertificate *cert)

{

    if (cert) {

        /* don't use STAN_GetNSSCertificate because we don't want to

         * go to the trouble of translating the CERTCertificate into

         * an NSSCertificate just to destroy it.  If it hasn't been done

         * yet, don't do it at all

         *

         * cert->nssCertificate contains its own locks and refcount, but as it

         * may be NULL, the pointer itself must be guarded by some other lock.

         * Rather than creating a new global lock for only this purpose, share

         * an existing global lock that happens to be taken near the write in

         * fill_CERTCertificateFields(). The longer-term goal is to refactor

         * all these global locks to be certificate-scoped. */

        CERT_MaybeLockCertTempPerm(cert);

        NSSCertificate *tmp = cert->nssCertificate;

        CERT_MaybeUnlockCertTempPerm(cert);

        if (tmp) {

            /* delete the NSSCertificate */

            NSSCertificate_Destroy(tmp);

        } else if (cert->arena) {

            PORT_FreeArena(cert->arena, PR_FALSE);

        }

    }

    return;

}

int

CERT_GetDBContentVersion(CERTCertDBHandle *handle)

{

    /* should read the DB content version from the pkcs #11 device */

    return 0;

}

SECStatus

certdb_SaveSingleProfile(CERTCertificate *cert, const char *emailAddr,

                         SECItem *emailProfile, SECItem *profileTime)

{

    PRTime oldtime;

    PRTime newtime;

    SECStatus rv = SECFailure;

    PRBool saveit;

    SECItem oldprof, oldproftime;

    SECItem *oldProfile = NULL;

    SECItem *oldProfileTime = NULL;

    PK11SlotInfo *slot = NULL;

    NSSCertificate *c;

    NSSCryptoContext *cc;

    nssSMIMEProfile *stanProfile = NULL;

    PRBool freeOldProfile = PR_FALSE;

    c = STAN_GetNSSCertificate(cert);

    if (!c)

        return SECFailure;

    cc = c->object.cryptoContext;

    if (cc != NULL) {

        stanProfile = nssCryptoContext_FindSMIMEProfileForCertificate(cc, c);

        if (stanProfile) {

            PORT_Assert(stanProfile->profileData);

            SECITEM_FROM_NSSITEM(&oldprof, stanProfile->profileData);

            oldProfile = &oldprof;

            SECITEM_FROM_NSSITEM(&oldproftime, stanProfile->profileTime);

            oldProfileTime = &oldproftime;

        }

    } else {

        oldProfile = PK11_FindSMimeProfile(&slot, (char *)emailAddr,

                                           &cert->derSubject, &oldProfileTime);

        freeOldProfile = PR_TRUE;

    }

    saveit = PR_FALSE;