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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 <locale.h>
#include "plstr.h"
#include "nsIServiceManager.h"
#include "nsDateTimeFormatUnix.h"
#include "nsIComponentManager.h"
#include "nsILocaleService.h"
#include "nsIPlatformCharset.h"
#include "nsPosixLocale.h"
#include "nsCRT.h"
#include "nsReadableUtils.h"
#include "nsUnicharUtils.h"
#include "mozilla/dom/EncodingUtils.h"
using mozilla::dom::EncodingUtils;
NS_IMPL_ISUPPORTS(nsDateTimeFormatUnix, nsIDateTimeFormat)
// init this interface to a specified locale
nsresult nsDateTimeFormatUnix::Initialize(nsILocale* locale)
{
nsAutoString localeStr;
NS_NAMED_LITERAL_STRING(aCategory, "NSILOCALE_TIME##PLATFORM");
nsresult res = NS_OK;
// use cached info if match with stored locale
if (!locale) {
if (!mLocale.IsEmpty() &&
mLocale.Equals(mAppLocale, nsCaseInsensitiveStringComparator())) {
return NS_OK;
}
}
else {
res = locale->GetCategory(aCategory, localeStr);
if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
if (!mLocale.IsEmpty() &&
mLocale.Equals(localeStr,
nsCaseInsensitiveStringComparator())) {
return NS_OK;
}
}
}
mCharset.AssignLiteral("windows-1252");
mPlatformLocale.AssignLiteral("en_US");
// get locale name string, use app default if no locale specified
if (!locale) {
nsCOMPtr<nsILocaleService> localeService =
do_GetService(NS_LOCALESERVICE_CONTRACTID, &res);
if (NS_SUCCEEDED(res)) {
nsCOMPtr<nsILocale> appLocale;
res = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
if (NS_SUCCEEDED(res)) {
res = appLocale->GetCategory(aCategory, localeStr);
if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
NS_ASSERTION(NS_SUCCEEDED(res), "failed to get app locale info");
mAppLocale = localeStr; // cache app locale name
}
}
}
}
else {
res = locale->GetCategory(aCategory, localeStr);
NS_ASSERTION(NS_SUCCEEDED(res), "failed to get locale info");
}
if (NS_SUCCEEDED(res) && !localeStr.IsEmpty()) {
mLocale = localeStr; // cache locale name
nsPosixLocale::GetPlatformLocale(mLocale, mPlatformLocale);
nsCOMPtr <nsIPlatformCharset> platformCharset = do_GetService(NS_PLATFORMCHARSET_CONTRACTID, &res);
if (NS_SUCCEEDED(res)) {
nsAutoCString mappedCharset;
res = platformCharset->GetDefaultCharsetForLocale(mLocale, mappedCharset);
if (NS_SUCCEEDED(res)) {
mCharset = mappedCharset;
}
}
}
mDecoder = EncodingUtils::DecoderForEncoding(mCharset);
LocalePreferred24hour();
return res;
}
void nsDateTimeFormatUnix::LocalePreferred24hour()
{
char str[100];
time_t tt;
struct tm *tmc;
int i;
tt = time(nullptr);
tmc = localtime(&tt);
tmc->tm_hour=22; // put the test sample hour to 22:00 which is 10PM
tmc->tm_min=0; // set the min & sec other number than '2'
tmc->tm_sec=0;
char *temp = setlocale(LC_TIME, mPlatformLocale.get());
strftime(str, (size_t)99, "%X", (struct tm *)tmc);
(void) setlocale(LC_TIME, temp);
mLocalePreferred24hour = false;
for (i=0; str[i]; i++) {
if (str[i] == '2') { // if there is any '2', that locale use 0-23 time format
mLocalePreferred24hour = true;
break;
}
}
mLocaleAMPMfirst = true;
if (mLocalePreferred24hour == false) {
if (str[0] && str[0] == '1') { // if the first character is '1' of 10:00,
// AMPM string is located after 10:00
mLocaleAMPMfirst = false;
}
}
}
nsresult nsDateTimeFormatUnix::FormatTime(nsILocale* locale,
const nsDateFormatSelector dateFormatSelector,
const nsTimeFormatSelector timeFormatSelector,
const time_t timetTime,
nsAString& stringOut)
{
struct tm tmTime;
memcpy(&tmTime, localtime(&timetTime), sizeof(struct tm));
return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
}
// performs a locale sensitive date formatting operation on the struct tm parameter
nsresult nsDateTimeFormatUnix::FormatTMTime(nsILocale* locale,
const nsDateFormatSelector dateFormatSelector,
const nsTimeFormatSelector timeFormatSelector,
const struct tm* tmTime,
nsAString& stringOut)
{
#define NSDATETIME_FORMAT_BUFFER_LEN 80
char strOut[NSDATETIME_FORMAT_BUFFER_LEN*2]; // buffer for date and time
char fmtD[NSDATETIME_FORMAT_BUFFER_LEN], fmtT[NSDATETIME_FORMAT_BUFFER_LEN];
nsresult rv;
// set up locale data
(void) Initialize(locale);
NS_ENSURE_TRUE(mDecoder, NS_ERROR_NOT_INITIALIZED);
// set date format
if (dateFormatSelector == kDateFormatLong && timeFormatSelector == kTimeFormatSeconds) {
PL_strncpy(fmtD, "%c", NSDATETIME_FORMAT_BUFFER_LEN);
PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
} else {
switch (dateFormatSelector) {
case kDateFormatNone:
PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kDateFormatLong:
case kDateFormatShort:
PL_strncpy(fmtD, "%x", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kDateFormatYearMonth:
PL_strncpy(fmtD, "%Y/%m", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kDateFormatWeekday:
PL_strncpy(fmtD, "%a", NSDATETIME_FORMAT_BUFFER_LEN);
break;
default:
PL_strncpy(fmtD, "", NSDATETIME_FORMAT_BUFFER_LEN);
}
// set time format
switch (timeFormatSelector) {
case kTimeFormatNone:
PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kTimeFormatSeconds:
PL_strncpy(fmtT, "%X", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kTimeFormatNoSeconds:
PL_strncpy(fmtT,
mLocalePreferred24hour ? "%H:%M" : mLocaleAMPMfirst ? "%p %I:%M" : "%I:%M %p",
NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kTimeFormatSecondsForce24Hour:
PL_strncpy(fmtT, "%H:%M:%S", NSDATETIME_FORMAT_BUFFER_LEN);
break;
case kTimeFormatNoSecondsForce24Hour:
PL_strncpy(fmtT, "%H:%M", NSDATETIME_FORMAT_BUFFER_LEN);
break;
default:
PL_strncpy(fmtT, "", NSDATETIME_FORMAT_BUFFER_LEN);
}
}
// generate data/time string
char *old_locale = setlocale(LC_TIME, nullptr);
(void) setlocale(LC_TIME, mPlatformLocale.get());
if (strlen(fmtD) && strlen(fmtT)) {
PL_strncat(fmtD, " ", NSDATETIME_FORMAT_BUFFER_LEN);
PL_strncat(fmtD, fmtT, NSDATETIME_FORMAT_BUFFER_LEN);
strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
}
else if (strlen(fmtD) && !strlen(fmtT)) {
strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtD, tmTime);
}
else if (!strlen(fmtD) && strlen(fmtT)) {
strftime(strOut, NSDATETIME_FORMAT_BUFFER_LEN, fmtT, tmTime);
}
else {
PL_strncpy(strOut, "", NSDATETIME_FORMAT_BUFFER_LEN);
}
(void) setlocale(LC_TIME, old_locale);
// convert result to unicode
int32_t srcLength = (int32_t) strlen(strOut);
int32_t unicharLength = NSDATETIME_FORMAT_BUFFER_LEN*2;
char16_t unichars[NSDATETIME_FORMAT_BUFFER_LEN*2]; // buffer for date and time
rv = mDecoder->Convert(strOut, &srcLength, unichars, &unicharLength);
if (NS_FAILED(rv))
return rv;
stringOut.Assign(unichars, unicharLength);
return rv;
}
// performs a locale sensitive date formatting operation on the PRTime parameter
nsresult nsDateTimeFormatUnix::FormatPRTime(nsILocale* locale,
const nsDateFormatSelector dateFormatSelector,
const nsTimeFormatSelector timeFormatSelector,
const PRTime prTime,
nsAString& stringOut)
{
PRExplodedTime explodedTime;
PR_ExplodeTime(prTime, PR_LocalTimeParameters, &explodedTime);
return FormatPRExplodedTime(locale, dateFormatSelector, timeFormatSelector, &explodedTime, stringOut);
}
// performs a locale sensitive date formatting operation on the PRExplodedTime parameter
nsresult nsDateTimeFormatUnix::FormatPRExplodedTime(nsILocale* locale,
const nsDateFormatSelector dateFormatSelector,
const nsTimeFormatSelector timeFormatSelector,
const PRExplodedTime* explodedTime,
nsAString& stringOut)
{
struct tm tmTime;
/* be safe and set all members of struct tm to zero
*
* there are other fields in the tm struct that we aren't setting
* (tm_isdst, tm_gmtoff, tm_zone, should we set these?) and since
* tmTime is on the stack, it may be filled with garbage, but
* the garbage may vary. (this may explain why some saw bug #10412, and
* others did not.
*
* when tmTime is passed to strftime() with garbage bad things may happen.
* see bug #10412
*/
memset( &tmTime, 0, sizeof(tmTime) );
tmTime.tm_yday = explodedTime->tm_yday;
tmTime.tm_wday = explodedTime->tm_wday;
tmTime.tm_year = explodedTime->tm_year;
tmTime.tm_year -= 1900;
tmTime.tm_mon = explodedTime->tm_month;
tmTime.tm_mday = explodedTime->tm_mday;
tmTime.tm_hour = explodedTime->tm_hour;
tmTime.tm_min = explodedTime->tm_min;
tmTime.tm_sec = explodedTime->tm_sec;
return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, &tmTime, stringOut);
}
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