diff options
Diffstat (limited to 'kdecore/krfcdate.cpp')
| -rw-r--r-- | kdecore/krfcdate.cpp | 505 |
1 files changed, 0 insertions, 505 deletions
diff --git a/kdecore/krfcdate.cpp b/kdecore/krfcdate.cpp deleted file mode 100644 index dabdc7afa..000000000 --- a/kdecore/krfcdate.cpp +++ /dev/null @@ -1,505 +0,0 @@ -/* - * - * This file is part of the KDE libraries - * Copyright (c) 2000-2002 Waldo Bastian <bastian@kde.org> - * 2002 Rik Hemsley <rik@kde.org> - * - * $Id$ - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License version 2 as published by the Free Software Foundation. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - **/ - -#include <config.h> - -#include <sys/param.h> -#include <ctype.h> -#include <stdlib.h> - -#include <tqstringlist.h> - -#include <krfcdate.h> - -static unsigned int ymdhms_to_seconds(int year, int mon, int day, int hour, int minute, int second) -{ - if (sizeof(time_t) == 4) - { - if ((time_t)-1 < 0) - { - if (year >= 2038) - { - year = 2038; - mon = 0; - day = 1; - hour = 0; - minute = 0; - second = 0; - } - } - else - { - if (year >= 2115) - { - year = 2115; - mon = 0; - day = 1; - hour = 0; - minute = 0; - second = 0; - } - } - } - - unsigned int ret = (day - 32075) /* days */ - + 1461L * (year + 4800L + (mon - 14) / 12) / 4 - + 367 * (mon - 2 - (mon - 14) / 12 * 12) / 12 - - 3 * ((year + 4900L + (mon - 14) / 12) / 100) / 4 - - 2440588; - ret = 24*ret + hour; /* hours */ - ret = 60*ret + minute; /* minutes */ - ret = 60*ret + second; /* seconds */ - - return ret; -} - -static const char haystack[37]="janfebmaraprmayjunjulaugsepoctnovdec"; - -// we follow the recommendation of rfc2822 to consider all -// obsolete time zones not listed here equivalent to "-0000" -static const struct { - const char tzName[4]; - int tzOffset; -} known_zones[] = { - { "UT", 0 }, - { "GMT", 0 }, - { "EST", -300 }, - { "EDT", -240 }, - { "CST", -360 }, - { "CDT", -300 }, - { "MST", -420 }, - { "MDT", -360 }, - { "PST", -480 }, - { "PDT", -420 }, - { { 0,0,0,0 }, 0 } -}; - -time_t -KRFCDate::parseDate(const TQString &_date) -{ - if (_date.isEmpty()) - return 0; - - // This parse a date in the form: - // Wednesday, 09-Nov-99 23:12:40 GMT - // or - // Sat, 01-Jan-2000 08:00:00 GMT - // or - // Sat, 01 Jan 2000 08:00:00 GMT - // or - // 01 Jan 99 22:00 +0100 (exceptions in rfc822/rfc2822) - // - // We ignore the weekday - // - time_t result = 0; - int offset = 0; - char *newPosStr; - const char *dateString = _date.latin1(); - int day = 0; - char monthStr[4]; - int month = -1; - int year = 0; - int hour = 0; - int minute = 0; - int second = 0; - - // Strip leading space - while(*dateString && isspace(*dateString)) - dateString++; - - // Strip weekday - while(*dateString && !isdigit(*dateString) && !isspace(*dateString)) - dateString++; - - // Strip trailing space - while(*dateString && isspace(*dateString)) - dateString++; - - if (!*dateString) - return result; // Invalid date - - if (isalpha(*dateString)) - { - // ' Nov 5 1994 18:15:30 GMT' - // Strip leading space - while(*dateString && isspace(*dateString)) - dateString++; - - for(int i=0; i < 3;i++) - { - if (!*dateString || (*dateString == '-') || isspace(*dateString)) - return result; // Invalid date - monthStr[i] = tolower(*dateString++); - } - monthStr[3] = '\0'; - - newPosStr = (char*)strstr(haystack, monthStr); - - if (!newPosStr) - return result; // Invalid date - - month = (newPosStr-haystack)/3; // Jan=00, Feb=01, Mar=02, .. - - if ((month < 0) || (month > 11)) - return result; // Invalid date - - while (*dateString && isalpha(*dateString)) - dateString++; // Skip rest of month-name - } - - // ' 09-Nov-99 23:12:40 GMT' - // ' 5 1994 18:15:30 GMT' - day = strtol(dateString, &newPosStr, 10); - dateString = newPosStr; - - if ((day < 1) || (day > 31)) - return result; // Invalid date; - - if (!*dateString) - return result; // Invalid date - - while(*dateString && (isspace(*dateString) || (*dateString == '-'))) - dateString++; - - if (month == -1) - { - for(int i=0; i < 3;i++) - { - if (!*dateString || (*dateString == '-') || isspace(*dateString)) - return result; // Invalid date - monthStr[i] = tolower(*dateString++); - } - monthStr[3] = '\0'; - - newPosStr = (char*)strstr(haystack, monthStr); - - if (!newPosStr) - return result; // Invalid date - - month = (newPosStr-haystack)/3; // Jan=00, Feb=01, Mar=02, .. - - if ((month < 0) || (month > 11)) - return result; // Invalid date - - while (*dateString && isalpha(*dateString)) - dateString++; // Skip rest of month-name - - } - - // '-99 23:12:40 GMT' - while(*dateString && (isspace(*dateString) || (*dateString == '-'))) - dateString++; - - if (!*dateString || !isdigit(*dateString)) - return result; // Invalid date - - // '99 23:12:40 GMT' - year = strtol(dateString, &newPosStr, 10); - dateString = newPosStr; - - // Y2K: Solve 2 digit years - if ((year >= 0) && (year < 50)) - year += 2000; - - if ((year >= 50) && (year < 100)) - year += 1900; // Y2K - - if ((year < 1900) || (year > 2500)) - return result; // Invalid date - - // Don't fail if the time is missing. - if (*dateString) - { - // ' 23:12:40 GMT' - if (!isspace(*dateString++)) - return result; // Invalid date - - hour = strtol(dateString, &newPosStr, 10); - dateString = newPosStr; - - if ((hour < 0) || (hour > 23)) - return result; // Invalid date - - if (!*dateString) - return result; // Invalid date - - // ':12:40 GMT' - if (*dateString++ != ':') - return result; // Invalid date - - minute = strtol(dateString, &newPosStr, 10); - dateString = newPosStr; - - if ((minute < 0) || (minute > 59)) - return result; // Invalid date - - if (!*dateString) - return result; // Invalid date - - // ':40 GMT' - if (*dateString != ':' && !isspace(*dateString)) - return result; // Invalid date - - // seconds are optional in rfc822 + rfc2822 - if (*dateString ==':') { - dateString++; - - second = strtol(dateString, &newPosStr, 10); - dateString = newPosStr; - - if ((second < 0) || (second > 59)) - return result; // Invalid date - } else { - dateString++; - } - - while(*dateString && isspace(*dateString)) - dateString++; - } - - // don't fail if the time zone is missing, some - // broken mail-/news-clients omit the time zone - if (*dateString) { - if ((strncasecmp(dateString, "gmt", 3) == 0) || - (strncasecmp(dateString, "utc", 3) == 0)) - { - dateString += 3; - while(*dateString && isspace(*dateString)) - dateString++; - } - - if ((*dateString == '+') || (*dateString == '-')) { - offset = strtol(dateString, &newPosStr, 10); - if (abs(offset) < 30) - { - dateString = newPosStr; - - offset = offset * 100; - - if (*dateString && *(dateString+1)) - { - dateString++; - int minutes = strtol(dateString, &newPosStr, 10); - if (offset > 0) - offset += minutes; - else - offset -= minutes; - } - } - - if ((offset < -9959) || (offset > 9959)) - return result; // Invalid date - - int sgn = (offset < 0)? -1:1; - offset = abs(offset); - offset = ((offset / 100)*60 + (offset % 100))*sgn; - } else { - for (int i=0; known_zones[i].tzName != 0; i++) { - if (0 == strncasecmp(dateString, known_zones[i].tzName, strlen(known_zones[i].tzName))) { - offset = known_zones[i].tzOffset; - break; - } - } - } - } - - result = ymdhms_to_seconds(year, month+1, day, hour, minute, second); - - // avoid negative time values - if ((offset > 0) && (offset > result)) - offset = 0; - - result -= offset*60; - - // If epoch 0 return epoch +1 which is Thu, 01-Jan-70 00:00:01 GMT - // This is so that parse error and valid epoch 0 return values won't - // be the same for sensitive applications... - if (result < 1) result = 1; - - return result; -} - -time_t -KRFCDate::parseDateISO8601( const TQString& input_ ) -{ - if (input_.isEmpty()) - return 0; - - // These dates look like this: - // YYYY-MM-DDTHH:MM:SS - // But they may also have 0, 1 or 2 suffixes. - // Suffix 1: .secfrac (fraction of second) - // Suffix 2: Either 'Z' or +zone or -zone, where zone is HHMM - - unsigned int year = 0; - unsigned int month = 0; - unsigned int mday = 0; - unsigned int hour = 0; - unsigned int min = 0; - unsigned int sec = 0; - - int offset = 0; - - TQString input = input_; - - // First find the 'T' separator, if any. - int tPos = input.find('T'); - - // If there is no time, no month or no day specified, fill those missing - // fields so that 'input' matches YYYY-MM-DDTHH:MM:SS - if (-1 == tPos) { - const int dashes = input.contains('-'); - if (0 == dashes) { - input += "-01-01"; - } else if (1 == dashes) { - input += "-01"; - } - tPos = input.length(); - input += "T12:00:00"; - } - - // Now parse the date part. - - TQString dateString = input.left(tPos).stripWhiteSpace(); - - TQString timeString = input.mid(tPos + 1).stripWhiteSpace(); - - TQStringList l = TQStringList::split('-', dateString); - - if (l.size() < 3) - return 0; - - year = l[0].toUInt(); - month = l[1].toUInt(); - mday = l[2].toUInt(); - - // Z suffix means UTC. - if ((QChar)'Z' == timeString.tqat(timeString.length() - 1)) { - timeString.remove(timeString.length() - 1, 1); - } - - // +zone or -zone suffix (offset from UTC). - - int plusPos = timeString.findRev('+'); - - if (-1 != plusPos) { - TQString offsetString = timeString.mid(plusPos + 1); - - offset = offsetString.left(2).toUInt() * 60 + offsetString.right(2).toUInt(); - - timeString = timeString.left(plusPos); - } else { - int minusPos = timeString.findRev('-'); - - if (-1 != minusPos) { - TQString offsetString = timeString.mid(minusPos + 1); - - offset = - int(offsetString.left(2).toUInt() * 60 + offsetString.right(2).toUInt()); - - timeString = timeString.left(minusPos); - } - } - - // secfrac suffix. - int dotPos = timeString.findRev('.'); - - if (-1 != dotPos) { - timeString = timeString.left(dotPos); - } - - // Now parse the time part. - - l = TQStringList::split(':', timeString); - - if (l.size() < 3) - return 0; - - hour = l[0].toUInt(); - min = l[1].toUInt(); - sec = l[2].toUInt(); - - time_t result = ymdhms_to_seconds(year, month, mday, hour, min, sec); - - // avoid negative time values - if ((offset > 0) && (offset > result)) - offset = 0; - - result -= offset*60; - - // If epoch 0 return epoch +1 which is Thu, 01-Jan-70 00:00:01 GMT - // This is so that parse error and valid epoch 0 return values won't - // be the same for sensitive applications... - if (result < 1) result = 1; - - return result; -} - - -int KRFCDate::localUTCOffset() -{ - time_t timeNow = time((time_t*) 0); - - tm *tM = gmtime(&timeNow); - unsigned int timeUTC = ymdhms_to_seconds(tM->tm_year+1900, tM->tm_mon+1, tM->tm_mday, - tM->tm_hour, tM->tm_min, tM->tm_sec); - - tM = localtime(&timeNow); - unsigned int timeLocal = ymdhms_to_seconds(tM->tm_year+1900, tM->tm_mon+1, tM->tm_mday, - tM->tm_hour, tM->tm_min, tM->tm_sec); - - return ((int)(timeLocal-timeUTC))/60; -} - - -static const char * const day_names[] = { - "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" -}; - -static const char * const month_names[] = { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" -}; - - -TQCString KRFCDate::rfc2822DateString(time_t utcTime, int utcOffset) -{ - utcTime += utcOffset * 60; - tm *tM = gmtime(&utcTime); - char sgn = (utcOffset < 0) ? '-' : '+'; - int z = (utcOffset < 0) ? -utcOffset : utcOffset; - TQCString dateStr; - - dateStr.sprintf("%s, %02d %s %04d %02d:%02d:%02d %c%02d%02d", - day_names[tM->tm_wday], tM->tm_mday, - month_names[tM->tm_mon], tM->tm_year+1900, - tM->tm_hour, tM->tm_min, tM->tm_sec, - sgn, z/60%24, z%60); - - return dateStr; -} - - -TQCString KRFCDate::rfc2822DateString(time_t utcTime) -{ - return rfc2822DateString(utcTime, localUTCOffset()); -} |