/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape security libraries.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1994-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#ifndef PKIM_H
#define PKIM_H

#ifdef DEBUG
static const char PKIM_CVS_ID[] = "@(#) $RCSfile: pkim.h,v $ $Revision: 1.23 $ $Date: 2002/11/06 18:53:54 $ $Name: MOZILLA_1_7_13_RELEASE $";
#endif /* DEBUG */

#ifndef BASE_H
#include "base.h"
#endif /* BASE_H */

#ifndef PKI_H
#include "pki.h"
#endif /* PKI_H */

#ifndef PKITM_H
#include "pkitm.h"
#endif /* PKITM_H */

PR_BEGIN_EXTERN_C

/* nssPKIObject
 *
 * This is the base object class, common to all PKI objects defined in
 * in this module.  Each object can be safely 'casted' to an nssPKIObject,
 * then passed to these methods.
 *
 * nssPKIObject_Create
 * nssPKIObject_Destroy
 * nssPKIObject_AddRef
 * nssPKIObject_AddInstance
 * nssPKIObject_HasInstance
 * nssPKIObject_GetTokens
 * nssPKIObject_GetNicknameForToken
 * nssPKIObject_RemoveInstanceForToken
 * nssPKIObject_DeleteStoredObject
 */

/* nssPKIObject_Create
 *
 * A generic PKI object.  It must live in a trust domain.  It may be
 * initialized with a token instance, or alternatively in a crypto context.
 */
NSS_EXTERN nssPKIObject *
nssPKIObject_Create
(
  NSSArena *arenaOpt,
  nssCryptokiObject *instanceOpt,
  NSSTrustDomain *td,
  NSSCryptoContext *ccOpt
);

/* nssPKIObject_AddRef
 */
NSS_EXTERN nssPKIObject *
nssPKIObject_AddRef
(
  nssPKIObject *object
);

/* nssPKIObject_Destroy
 *
 * Returns true if object was destroyed.  This notifies the subclass that
 * all references are gone and it should delete any members it owns.
 */
NSS_EXTERN PRBool
nssPKIObject_Destroy
(
  nssPKIObject *object
);

/* nssPKIObject_AddInstance
 *
 * Add a token instance to the object, if it does not have it already.
 */
NSS_EXTERN PRStatus
nssPKIObject_AddInstance
(
  nssPKIObject *object,
  nssCryptokiObject *instance
);

/* nssPKIObject_HasInstance
 *
 * Query the object for a token instance.
 */
NSS_EXTERN PRBool
nssPKIObject_HasInstance
(
  nssPKIObject *object,
  nssCryptokiObject *instance
);

/* nssPKIObject_GetTokens
 *
 * Get all tokens which have an instance of the object.
 */
NSS_EXTERN NSSToken **
nssPKIObject_GetTokens
(
  nssPKIObject *object,
  PRStatus *statusOpt
);

/* nssPKIObject_GetNicknameForToken
 *
 * tokenOpt == NULL means take the first available, otherwise return the
 * nickname for the specified token.
 */
NSS_EXTERN NSSUTF8 *
nssPKIObject_GetNicknameForToken
(
  nssPKIObject *object,
  NSSToken *tokenOpt
);

/* nssPKIObject_RemoveInstanceForToken
 *
 * Remove the instance of the object on the specified token.
 */
NSS_EXTERN PRStatus
nssPKIObject_RemoveInstanceForToken
(
  nssPKIObject *object,
  NSSToken *token
);

/* nssPKIObject_DeleteStoredObject
 *
 * Delete all token instances of the object, as well as any crypto context
 * instances (TODO).  If any of the instances are read-only, or if the
 * removal fails, the object will keep those instances.  'isFriendly' refers
 * to the object -- can this object be removed from a friendly token without
 * login?  For example, certificates are friendly, private keys are not.
 * Note that if the token is not friendly, authentication will be required
 * regardless of the value of 'isFriendly'.
 */
NSS_EXTERN PRStatus
nssPKIObject_DeleteStoredObject
(
  nssPKIObject *object,
  NSSCallback *uhh,
  PRBool isFriendly
);

#ifdef NSS_3_4_CODE
NSS_EXTERN nssCryptokiObject **
nssPKIObject_GetInstances
(
  nssPKIObject *object
);
#endif

NSS_EXTERN NSSCertificate **
nssTrustDomain_FindCertificatesByID
(
  NSSTrustDomain *td,
  NSSItem *id,
  NSSCertificate **rvOpt,
  PRUint32 maximumOpt,
  NSSArena *arenaOpt
);

NSS_EXTERN NSSCRL **
nssTrustDomain_FindCRLsBySubject
(
  NSSTrustDomain *td,
  NSSDER *subject
);

/* module-private nsspki methods */

NSS_EXTERN NSSCryptoContext *
nssCryptoContext_Create
(
  NSSTrustDomain *td,
  NSSCallback *uhhOpt
);

/* XXX for the collection */
NSS_EXTERN NSSCertificate *
nssCertificate_Create
(
  nssPKIObject *object
);

NSS_EXTERN PRStatus
nssCertificate_SetCertTrust
(
  NSSCertificate *c,
  NSSTrust *trust
);

NSS_EXTERN nssDecodedCert *
nssCertificate_GetDecoding
(
  NSSCertificate *c
);

NSS_EXTERN nssDecodedCert *
nssDecodedCert_Create
(
  NSSArena *arenaOpt,
  NSSDER *encoding,
  NSSCertificateType type
);

NSS_EXTERN PRStatus
nssDecodedCert_Destroy
(
  nssDecodedCert *dc
);

NSS_EXTERN NSSTrust *
nssTrust_Create
(
  nssPKIObject *object,
  NSSItem *certData
);

NSS_EXTERN NSSCRL *
nssCRL_Create
(
  nssPKIObject *object
);

NSS_EXTERN NSSCRL *
nssCRL_AddRef
(
  NSSCRL *crl
);

NSS_EXTERN PRStatus
nssCRL_Destroy
(
  NSSCRL *crl
);

NSS_EXTERN PRStatus
nssCRL_DeleteStoredObject
(
  NSSCRL *crl,
  NSSCallback *uhh
);

NSS_EXTERN NSSPrivateKey *
nssPrivateKey_Create
(
  nssPKIObject *o
);

NSS_EXTERN NSSDER *
nssCRL_GetEncoding
(
  NSSCRL *crl
);

NSS_EXTERN NSSPublicKey *
nssPublicKey_Create
(
  nssPKIObject *object
);

/* nssCertificateArray
 *
 * These are being thrown around a lot, might as well group together some
 * functionality.
 *
 * nssCertificateArray_Destroy
 * nssCertificateArray_Join
 * nssCertificateArray_FindBestCertificate
 * nssCertificateArray_Traverse
 */

/* nssCertificateArray_Destroy
 *
 * Will destroy the array and the certs within it.  If the array was created
 * in an arena, will *not* (of course) destroy the arena.  However, is safe
 * to call this method on an arena-allocated array.
 */
NSS_EXTERN void
nssCertificateArray_Destroy
(
  NSSCertificate **certs
);

/* nssCertificateArray_Join
 *
 * Join two arrays into one.  The two arrays, certs1 and certs2, should
 * be considered invalid after a call to this function (they may be destroyed
 * as part of the join).  certs1 and/or certs2 may be NULL.  Safe to
 * call with arrays allocated in an arena, the result will also be in the
 * arena.
 */
NSS_EXTERN NSSCertificate **
nssCertificateArray_Join
(
  NSSCertificate **certs1,
  NSSCertificate **certs2
);

/* nssCertificateArray_FindBestCertificate
 *
 * Use the usual { time, usage, policies } to find the best cert in the
 * array.
 */
NSS_EXTERN NSSCertificate * 
nssCertificateArray_FindBestCertificate
(
  NSSCertificate **certs, 
  NSSTime *timeOpt,
  NSSUsage *usage,
  NSSPolicies *policiesOpt
);

/* nssCertificateArray_Traverse
 *
 * Do the callback for each cert, terminate the traversal if the callback
 * fails.
 */
NSS_EXTERN PRStatus
nssCertificateArray_Traverse
(
  NSSCertificate **certs,
  PRStatus (* callback)(NSSCertificate *c, void *arg),
  void *arg
);

NSS_EXTERN void
nssCRLArray_Destroy
(
  NSSCRL **crls
);

/* nssPKIObjectCollection
 *
 * This is a handy way to group objects together and perform operations
 * on them.  It can also handle "proto-objects"-- references to
 * objects instances on tokens, where the actual object hasn't 
 * been formed yet.
 *
 * nssCertificateCollection_Create
 * nssPrivateKeyCollection_Create
 * nssPublicKeyCollection_Create
 *
 * If this was a language that provided for inheritance, each type would
 * inherit all of the following methods.  Instead, there is only one
 * type (nssPKIObjectCollection), shared among all.  This may cause
 * confusion; an alternative would be to define all of the methods
 * for each subtype (nssCertificateCollection_Destroy, ...), but that doesn't
 * seem worth the code bloat..  It is left up to the caller to remember 
 * what type of collection he/she is dealing with.
 *
 * nssPKIObjectCollection_Destroy
 * nssPKIObjectCollection_Count
 * nssPKIObjectCollection_AddObject
 * nssPKIObjectCollection_AddInstances
 * nssPKIObjectCollection_Traverse
 *
 * Back to type-specific methods.
 *
 * nssPKIObjectCollection_GetCertificates
 * nssPKIObjectCollection_GetCRLs
 * nssPKIObjectCollection_GetPrivateKeys
 * nssPKIObjectCollection_GetPublicKeys
 */

/* nssCertificateCollection_Create
 *
 * Create a collection of certificates in the specified trust domain.
 * Optionally provide a starting set of certs.
 */
NSS_EXTERN nssPKIObjectCollection *
nssCertificateCollection_Create
(
  NSSTrustDomain *td,
  NSSCertificate **certsOpt
);

/* nssCRLCollection_Create
 *
 * Create a collection of CRLs/KRLs in the specified trust domain.
 * Optionally provide a starting set of CRLs.
 */
NSS_EXTERN nssPKIObjectCollection *
nssCRLCollection_Create
(
  NSSTrustDomain *td,
  NSSCRL **crlsOpt
);

/* nssPrivateKeyCollection_Create
 *
 * Create a collection of private keys in the specified trust domain.
 * Optionally provide a starting set of keys.
 */
NSS_EXTERN nssPKIObjectCollection *
nssPrivateKeyCollection_Create
(
  NSSTrustDomain *td,
  NSSPrivateKey **pvkOpt
);

/* nssPublicKeyCollection_Create
 *
 * Create a collection of public keys in the specified trust domain.
 * Optionally provide a starting set of keys.
 */
NSS_EXTERN nssPKIObjectCollection *
nssPublicKeyCollection_Create
(
  NSSTrustDomain *td,
  NSSPublicKey **pvkOpt
);

/* nssPKIObjectCollection_Destroy
 */
NSS_EXTERN void
nssPKIObjectCollection_Destroy
(
  nssPKIObjectCollection *collection
);

/* nssPKIObjectCollection_Count
 */
NSS_EXTERN PRUint32
nssPKIObjectCollection_Count
(
  nssPKIObjectCollection *collection
);

NSS_EXTERN PRStatus
nssPKIObjectCollection_AddObject
(
  nssPKIObjectCollection *collection,
  nssPKIObject *object
);

/* nssPKIObjectCollection_AddInstances
 *
 * Add a set of object instances to the collection.  The instances
 * will be sorted into any existing certs/proto-certs that may be in
 * the collection.  The instances will be absorbed by the collection,
 * the array should not be used after this call (except to free it).
 *
 * Failure means the collection is in an invalid state.
 *
 * numInstances = 0 means the array is NULL-terminated
 */
NSS_EXTERN PRStatus
nssPKIObjectCollection_AddInstances
(
  nssPKIObjectCollection *collection,
  nssCryptokiObject **instances,
  PRUint32 numInstances
);

/* nssPKIObjectCollection_Traverse
 */
NSS_EXTERN PRStatus
nssPKIObjectCollection_Traverse
(
  nssPKIObjectCollection *collection,
  nssPKIObjectCallback *callback
);

/* This function is being added for NSS 3.5.  It corresponds to the function
 * nssToken_TraverseCertificates.  The idea is to use the collection during
 * a traversal, creating certs each time a new instance is added for which
 * a cert does not already exist.
 */
NSS_EXTERN PRStatus
nssPKIObjectCollection_AddInstanceAsObject
(
  nssPKIObjectCollection *collection,
  nssCryptokiObject *instance
);

/* nssPKIObjectCollection_GetCertificates
 *
 * Get all of the certificates in the collection. 
 */
NSS_EXTERN NSSCertificate **
nssPKIObjectCollection_GetCertificates
(
  nssPKIObjectCollection *collection,
  NSSCertificate **rvOpt,
  PRUint32 maximumOpt,
  NSSArena *arenaOpt
);

NSS_EXTERN NSSCRL **
nssPKIObjectCollection_GetCRLs
(
  nssPKIObjectCollection *collection,
  NSSCRL **rvOpt,
  PRUint32 maximumOpt,
  NSSArena *arenaOpt
);

NSS_EXTERN NSSPrivateKey **
nssPKIObjectCollection_GetPrivateKeys
(
  nssPKIObjectCollection *collection,
  NSSPrivateKey **rvOpt,
  PRUint32 maximumOpt,
  NSSArena *arenaOpt
);

NSS_EXTERN NSSPublicKey **
nssPKIObjectCollection_GetPublicKeys
(
  nssPKIObjectCollection *collection,
  NSSPublicKey **rvOpt,
  PRUint32 maximumOpt,
  NSSArena *arenaOpt
);

NSS_EXTERN NSSTime *
NSSTime_Now
(
  NSSTime *timeOpt
);

NSS_EXTERN NSSTime *
NSSTime_SetPRTime
(
  NSSTime *timeOpt,
  PRTime prTime
);

NSS_EXTERN PRTime
NSSTime_GetPRTime
(
  NSSTime *time
);

NSS_EXTERN nssHash *
nssHash_CreateCertificate
(
  NSSArena *arenaOpt,
  PRUint32 numBuckets
);

/* 3.4 Certificate cache routines */

NSS_EXTERN PRStatus
nssTrustDomain_InitializeCache
(
  NSSTrustDomain *td,
  PRUint32 cacheSize
);

NSS_EXTERN PRStatus
nssTrustDomain_AddCertsToCache
(
  NSSTrustDomain *td,
  NSSCertificate **certs,
  PRUint32 numCerts
);

NSS_EXTERN void
nssTrustDomain_RemoveCertFromCacheLOCKED (
  NSSTrustDomain *td,
  NSSCertificate *cert
);

NSS_EXTERN void
nssTrustDomain_LockCertCache (
  NSSTrustDomain *td
);

NSS_EXTERN void
nssTrustDomain_UnlockCertCache (
  NSSTrustDomain *td
);

NSS_IMPLEMENT PRStatus
nssTrustDomain_DestroyCache
(
  NSSTrustDomain *td
);

/* 
 * Remove all certs for the given token from the cache.  This is
 * needed if the token is removed.
 */
NSS_EXTERN PRStatus
nssTrustDomain_RemoveTokenCertsFromCache
(
  NSSTrustDomain *td,
  NSSToken *token
);

NSS_EXTERN PRStatus
nssTrustDomain_UpdateCachedTokenCerts
(
  NSSTrustDomain *td,
  NSSToken *token
);

/*
 * Find all cached certs with this nickname (label).
 */
NSS_EXTERN NSSCertificate **
nssTrustDomain_GetCertsForNicknameFromCache
(
  NSSTrustDomain *td,
  NSSUTF8 *nickname,
  nssList *certListOpt
);

/*
 * Find all cached certs with this email address.
 */
NSS_EXTERN NSSCertificate **
nssTrustDomain_GetCertsForEmailAddressFromCache
(
  NSSTrustDomain *td,
  NSSASCII7 *email,
  nssList *certListOpt
);

/*
 * Find all cached certs with this subject.
 */
NSS_EXTERN NSSCertificate **
nssTrustDomain_GetCertsForSubjectFromCache
(
  NSSTrustDomain *td,
  NSSDER *subject,
  nssList *certListOpt
);

/*
 * Look for a specific cert in the cache.
 */
NSS_EXTERN NSSCertificate *
nssTrustDomain_GetCertForIssuerAndSNFromCache
(
  NSSTrustDomain *td,
  NSSDER *issuer,
  NSSDER *serialNum
);

/*
 * Look for a specific cert in the cache.
 */
NSS_EXTERN NSSCertificate *
nssTrustDomain_GetCertByDERFromCache
(
  NSSTrustDomain *td,
  NSSDER *der
);

/* Get all certs from the cache */
/* XXX this is being included to make some old-style calls word, not to
 *     say we should keep it
 */
NSS_EXTERN NSSCertificate **
nssTrustDomain_GetCertsFromCache
(
  NSSTrustDomain *td,
  nssList *certListOpt
);

NSS_EXTERN void
nssTrustDomain_DumpCacheInfo
(
  NSSTrustDomain *td,
  void (* cert_dump_iter)(const void *, void *, void *),
  void *arg
);

NSS_EXTERN void
nssCertificateList_AddReferences
(
  nssList *certList
);

PR_END_EXTERN_C

#endif /* PKIM_H */
