bool MaskedDateReader :: Read( const string & ds, ALib::Date & date ) {
ALib::STRPOS s1 = ds.find( mSep[0] );
ALib::STRPOS s2 = ds.find_last_of( mSep[1] );
if ( s1 == std::string::npos ||
s2 == std::string::npos ||
s1 >= s2 ) {
return false;
}
string s[3];
s[0] = ds.substr( 0, s1 );
s[1] = ds.substr( s1 + 1, (s2 - s1) - 1 );
s[2] = ds.substr( s2 + 1 );
int day = -1, month = -1, year = -1;
for ( unsigned int i = 0; i < 3; i++ ) {
switch( mDMY[i] ) {
case 'd':
MakeDay( s[i], day );
break;
case 'm':
MakeMonth( s[i], month );
break;
case 'y':
MakeYear( s[i], year );
break;
}
}
if ( ALib::Date::Validate( year, month, day ) != ALib::Date::DATEOK ) {
return false;
}
date = ALib::Date( year, month, day );
return true;
}
time_t
Ns_ParseHttpTime(char *str)
{
char *s;
struct tm tm;
time_t t;
if (str == NULL) {
return 0;
}
/*
* Find the comma after day-of-week
*
* Thursday, 10-Jun-93 01:29:59 GMT
* ^
* +-- s
*
* Thu, 10 Jan 1993 01:29:59 GMT
* ^
* +-- s
*/
s = strchr(str, ',');
if (s != NULL) {
/*
* Advance S to the first non-space after the comma
* which should be the first digit of the day.
*/
s++;
while (*s && *s == ' ') {
s++;
}
/*
* Figure out which format it is in. If there is a hyphen, then
* it must be the first format.
*/
if (strchr(s, '-') != NULL) {
if (strlen(s) < 18) {
return 0;
}
/*
* The format is:
*
* Thursday, 10-Jun-93 01:29:59 GMT
* ^
* +--s
*/
tm.tm_mday = MakeNum(s);
tm.tm_mon = MakeMonth(s + 3);
tm.tm_year = MakeNum(s + 7);
tm.tm_hour = MakeNum(s + 10);
tm.tm_min = MakeNum(s + 13);
tm.tm_sec = MakeNum(s + 16);
} else {
if ((int) strlen(s) < 20) {
return 0;
}
/*
* The format is:
*
* Thu, 10 Jan 1993 01:29:59 GMT
* ^
* +--s
*/
tm.tm_mday = MakeNum(s);
tm.tm_mon = MakeMonth(s + 3);
tm.tm_year = (100 * MakeNum(s + 7) - 1900) + MakeNum(s + 9);
tm.tm_hour = MakeNum(s + 12);
tm.tm_min = MakeNum(s + 15);
tm.tm_sec = MakeNum(s + 18);
}
} else {
/*
* No commas, so it must be the third, fixed field, format:
*
* Wed Jun 9 01:29:59 1993 GMT
*
* Advance s to the first letter of the month.
*/
s = str;
while (*s && *s == ' ') {
s++;
}
if ((int) strlen(s) < 24) {
return 0;
}
tm.tm_mday = MakeNum(s + 8);
tm.tm_mon = MakeMonth(s + 4);
tm.tm_year = MakeNum(s + 22);
tm.tm_hour = MakeNum(s + 11);
tm.tm_min = MakeNum(s + 14);
tm.tm_sec = MakeNum(s + 17);
}
/*
* If there are any impossible values, then return an error.
*/
if (tm.tm_sec < 0 || tm.tm_sec > 59 ||
tm.tm_min < 0 || tm.tm_min > 59 ||
tm.tm_hour < 0 || tm.tm_hour > 23 ||
tm.tm_mday < 1 || tm.tm_mday > 31 ||
tm.tm_mon < 0 || tm.tm_mon > 11 ||
tm.tm_year < 70 || tm.tm_year > 120) {
return 0;
}
tm.tm_isdst = 0;
#ifdef HAVE_TIMEGM
t = timegm(&tm);
#else
t = mktime(&tm) - timezone;
#endif
return t;
}
