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/* 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 "secder.h"
#include "secitem.h"
#include "secerr.h"
static char *DecodeUTCTime2FormattedAscii(SECItem *utcTimeDER, char *format);
static char *DecodeGeneralizedTime2FormattedAscii(SECItem *generalizedTimeDER, char *format);
/* convert DER utc time to ascii time string */
char *
DER_UTCTimeToAscii(SECItem *utcTime)
{
return (DecodeUTCTime2FormattedAscii(utcTime, "%a %b %d %H:%M:%S %Y"));
}
/* convert DER utc time to ascii time string, only include day, not time */
char *
DER_UTCDayToAscii(SECItem *utctime)
{
return (DecodeUTCTime2FormattedAscii(utctime, "%a %b %d, %Y"));
}
/* convert DER generalized time to ascii time string, only include day,
not time */
char *
DER_GeneralizedDayToAscii(SECItem *gentime)
{
return (DecodeGeneralizedTime2FormattedAscii(gentime, "%a %b %d, %Y"));
}
/* convert DER generalized or UTC time to ascii time string, only include
day, not time */
char *
DER_TimeChoiceDayToAscii(SECItem *timechoice)
{
switch (timechoice->type) {
case siUTCTime:
return DER_UTCDayToAscii(timechoice);
case siGeneralizedTime:
return DER_GeneralizedDayToAscii(timechoice);
default:
PORT_Assert(0);
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
}
char *
CERT_UTCTime2FormattedAscii(PRTime utcTime, char *format)
{
PRExplodedTime printableTime;
char *timeString;
/* Converse time to local time and decompose it into components */
PR_ExplodeTime(utcTime, PR_LocalTimeParameters, &printableTime);
timeString = (char *)PORT_Alloc(256);
if (timeString) {
if (!PR_FormatTime(timeString, 256, format, &printableTime)) {
PORT_Free(timeString);
timeString = NULL;
}
}
return (timeString);
}
char *
CERT_GenTime2FormattedAscii(PRTime genTime, char *format)
{
PRExplodedTime printableTime;
char *timeString;
/* Decompose time into components */
PR_ExplodeTime(genTime, PR_GMTParameters, &printableTime);
timeString = (char *)PORT_Alloc(256);
if (timeString) {
if (!PR_FormatTime(timeString, 256, format, &printableTime)) {
PORT_Free(timeString);
timeString = NULL;
PORT_SetError(SEC_ERROR_OUTPUT_LEN);
}
}
return (timeString);
}
/* convert DER utc time to ascii time string, The format of the time string
depends on the input "format"
*/
static char *
DecodeUTCTime2FormattedAscii(SECItem *utcTimeDER, char *format)
{
PRTime utcTime;
int rv;
rv = DER_UTCTimeToTime(&utcTime, utcTimeDER);
if (rv) {
return (NULL);
}
return (CERT_UTCTime2FormattedAscii(utcTime, format));
}
/* convert DER utc time to ascii time string, The format of the time string
depends on the input "format"
*/
static char *
DecodeGeneralizedTime2FormattedAscii(SECItem *generalizedTimeDER, char *format)
{
PRTime generalizedTime;
int rv;
rv = DER_GeneralizedTimeToTime(&generalizedTime, generalizedTimeDER);
if (rv) {
return (NULL);
}
return (CERT_GeneralizedTime2FormattedAscii(generalizedTime, format));
}
/* decode a SECItem containing either a SEC_ASN1_GENERALIZED_TIME
or a SEC_ASN1_UTC_TIME */
SECStatus
DER_DecodeTimeChoice(PRTime *output, const SECItem *input)
{
switch (input->type) {
case siGeneralizedTime:
return DER_GeneralizedTimeToTime(output, input);
case siUTCTime:
return DER_UTCTimeToTime(output, input);
default:
PORT_SetError(SEC_ERROR_INVALID_ARGS);
PORT_Assert(0);
return SECFailure;
}
}
/* encode a PRTime to an ASN.1 DER SECItem containing either a
SEC_ASN1_GENERALIZED_TIME or a SEC_ASN1_UTC_TIME */
SECStatus
DER_EncodeTimeChoice(PLArenaPool *arena, SECItem *output, PRTime input)
{
SECStatus rv;
rv = DER_TimeToUTCTimeArena(arena, output, input);
if (rv == SECSuccess || PORT_GetError() != SEC_ERROR_INVALID_ARGS) {
return rv;
}
return DER_TimeToGeneralizedTimeArena(arena, output, input);
}
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