forked from php/php-src
/
php_date.c
4963 lines (4198 loc) · 150 KB
/
php_date.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <derick@derickrethans.nl> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_streams.h"
#include "php_main.h"
#include "php_globals.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_versioning.h"
#include "ext/standard/php_math.h"
#include "php_date.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "lib/timelib.h"
#include "lib/timelib_private.h"
#ifndef PHP_WIN32
#include <time.h>
#else
#include "win32/time.h"
#endif
#ifdef PHP_WIN32
static __inline __int64 php_date_llabs( __int64 i ) { return i >= 0? i: -i; }
#elif defined(__GNUC__) && __GNUC__ < 3
static __inline __int64_t php_date_llabs( __int64_t i ) { return i >= 0 ? i : -i; }
#else
static inline long long php_date_llabs( long long i ) { return i >= 0 ? i : -i; }
#endif
#ifdef PHP_WIN32
#define DATE_I64_BUF_LEN 65
# define DATE_I64A(i, s, len) _i64toa_s(i, s, len, 10)
# define DATE_A64I(i, s) i = _atoi64(s)
#else
#define DATE_I64_BUF_LEN 65
# define DATE_I64A(i, s, len) \
do { \
int st = snprintf(s, len, "%lld", i); \
s[st] = '\0'; \
} while (0);
#define DATE_A64I(i, s) i = strtoll(s, NULL, 10)
#endif
PHPAPI time_t php_time(void)
{
#ifdef HAVE_GETTIMEOFDAY
struct timeval tm;
if (UNEXPECTED(gettimeofday(&tm, NULL) != SUCCESS)) {
/* fallback, can't reasonably happen */
return time(NULL);
}
return tm.tv_sec;
#else
return time(NULL);
#endif
}
#include "php_date_arginfo.h"
static char* guess_timezone(const timelib_tzdb *tzdb);
static void date_register_classes(void);
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(date)
static PHP_GINIT_FUNCTION(date);
/* True global */
timelib_tzdb *php_date_global_timezone_db;
int php_date_global_timezone_db_enabled;
#define DATE_DEFAULT_LATITUDE "31.7667"
#define DATE_DEFAULT_LONGITUDE "35.2333"
/* on 90'50; common sunset declaration (start of sun body appear) */
#define DATE_SUNSET_ZENITH "90.833333"
/* on 90'50; common sunrise declaration (sun body disappeared) */
#define DATE_SUNRISE_ZENITH "90.833333"
static PHP_INI_MH(OnUpdate_date_timezone);
/* {{{ INI Settings */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("date.timezone", "", PHP_INI_ALL, OnUpdate_date_timezone, default_timezone, zend_date_globals, date_globals)
PHP_INI_ENTRY("date.default_latitude", DATE_DEFAULT_LATITUDE, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.default_longitude", DATE_DEFAULT_LONGITUDE, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.sunset_zenith", DATE_SUNSET_ZENITH, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.sunrise_zenith", DATE_SUNRISE_ZENITH, PHP_INI_ALL, NULL)
PHP_INI_END()
/* }}} */
zend_class_entry *date_ce_date, *date_ce_timezone, *date_ce_interval, *date_ce_period;
zend_class_entry *date_ce_immutable, *date_ce_interface;
PHPAPI zend_class_entry *php_date_get_date_ce(void)
{
return date_ce_date;
}
PHPAPI zend_class_entry *php_date_get_immutable_ce(void)
{
return date_ce_immutable;
}
PHPAPI zend_class_entry *php_date_get_interface_ce(void)
{
return date_ce_interface;
}
PHPAPI zend_class_entry *php_date_get_timezone_ce(void)
{
return date_ce_timezone;
}
PHPAPI zend_class_entry *php_date_get_interval_ce(void)
{
return date_ce_interval;
}
PHPAPI zend_class_entry *php_date_get_period_ce(void)
{
return date_ce_period;
}
static zend_object_handlers date_object_handlers_date;
static zend_object_handlers date_object_handlers_immutable;
static zend_object_handlers date_object_handlers_timezone;
static zend_object_handlers date_object_handlers_interval;
static zend_object_handlers date_object_handlers_period;
#define DATE_CHECK_INITIALIZED(member, class_name) \
if (!(member)) { \
zend_throw_error(NULL, "The " #class_name " object has not been correctly initialized by its constructor"); \
RETURN_THROWS(); \
}
static void date_object_free_storage_date(zend_object *object);
static void date_object_free_storage_timezone(zend_object *object);
static void date_object_free_storage_interval(zend_object *object);
static void date_object_free_storage_period(zend_object *object);
static zend_object *date_object_new_date(zend_class_entry *class_type);
static zend_object *date_object_new_timezone(zend_class_entry *class_type);
static zend_object *date_object_new_interval(zend_class_entry *class_type);
static zend_object *date_object_new_period(zend_class_entry *class_type);
static zend_object *date_object_clone_date(zend_object *this_ptr);
static zend_object *date_object_clone_timezone(zend_object *this_ptr);
static zend_object *date_object_clone_interval(zend_object *this_ptr);
static zend_object *date_object_clone_period(zend_object *this_ptr);
static int date_object_compare_date(zval *d1, zval *d2);
static HashTable *date_object_get_gc(zend_object *object, zval **table, int *n);
static HashTable *date_object_get_properties_for(zend_object *object, zend_prop_purpose purpose);
static HashTable *date_object_get_gc_interval(zend_object *object, zval **table, int *n);
static HashTable *date_object_get_properties_interval(zend_object *object);
static HashTable *date_object_get_gc_period(zend_object *object, zval **table, int *n);
static HashTable *date_object_get_properties_period(zend_object *object);
static HashTable *date_object_get_properties_for_timezone(zend_object *object, zend_prop_purpose purpose);
static HashTable *date_object_get_gc_timezone(zend_object *object, zval **table, int *n);
static HashTable *date_object_get_debug_info_timezone(zend_object *object, int *is_temp);
static void php_timezone_to_string(php_timezone_obj *tzobj, zval *zv);
static int date_interval_compare_objects(zval *o1, zval *o2);
static zval *date_interval_read_property(zend_object *object, zend_string *member, int type, void **cache_slot, zval *rv);
static zval *date_interval_write_property(zend_object *object, zend_string *member, zval *value, void **cache_slot);
static zval *date_interval_get_property_ptr_ptr(zend_object *object, zend_string *member, int type, void **cache_slot);
static zval *date_period_read_property(zend_object *object, zend_string *name, int type, void **cache_slot, zval *rv);
static zval *date_period_write_property(zend_object *object, zend_string *name, zval *value, void **cache_slot);
static zval *date_period_get_property_ptr_ptr(zend_object *object, zend_string *name, int type, void **cache_slot);
static int date_object_compare_timezone(zval *tz1, zval *tz2);
/* {{{ Module struct */
zend_module_entry date_module_entry = {
STANDARD_MODULE_HEADER_EX,
NULL,
NULL,
"date", /* extension name */
ext_functions, /* function list */
PHP_MINIT(date), /* process startup */
PHP_MSHUTDOWN(date), /* process shutdown */
PHP_RINIT(date), /* request startup */
PHP_RSHUTDOWN(date), /* request shutdown */
PHP_MINFO(date), /* extension info */
PHP_DATE_VERSION, /* extension version */
PHP_MODULE_GLOBALS(date), /* globals descriptor */
PHP_GINIT(date), /* globals ctor */
NULL, /* globals dtor */
ZEND_MODULE_POST_ZEND_DEACTIVATE_N(date), /* post deactivate */
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
/* {{{ PHP_GINIT_FUNCTION */
static PHP_GINIT_FUNCTION(date)
{
date_globals->default_timezone = NULL;
date_globals->timezone = NULL;
date_globals->tzcache = NULL;
date_globals->timezone_valid = 0;
}
/* }}} */
static void _php_date_tzinfo_dtor(zval *zv) /* {{{ */
{
timelib_tzinfo *tzi = (timelib_tzinfo*)Z_PTR_P(zv);
timelib_tzinfo_dtor(tzi);
} /* }}} */
/* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(date)
{
if (DATEG(timezone)) {
efree(DATEG(timezone));
}
DATEG(timezone) = NULL;
DATEG(tzcache) = NULL;
DATEG(last_errors) = NULL;
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(date)
{
if (DATEG(timezone)) {
efree(DATEG(timezone));
}
DATEG(timezone) = NULL;
return SUCCESS;
}
/* }}} */
ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date)
{
if (DATEG(tzcache)) {
zend_hash_destroy(DATEG(tzcache));
FREE_HASHTABLE(DATEG(tzcache));
DATEG(tzcache) = NULL;
}
if (DATEG(last_errors)) {
timelib_error_container_dtor(DATEG(last_errors));
DATEG(last_errors) = NULL;
}
return SUCCESS;
}
#define DATE_TIMEZONEDB php_date_global_timezone_db ? php_date_global_timezone_db : timelib_builtin_db()
/*
* RFC822, Section 5.1: http://www.ietf.org/rfc/rfc822.txt
* date-time = [ day "," ] date time ; dd mm yy hh:mm:ss zzz
* day = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun"
* date = 1*2DIGIT month 2DIGIT ; day month year e.g. 20 Jun 82
* month = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec"
* time = hour zone ; ANSI and Military
* hour = 2DIGIT ":" 2DIGIT [":" 2DIGIT] ; 00:00:00 - 23:59:59
* zone = "UT" / "GMT" / "EST" / "EDT" / "CST" / "CDT" / "MST" / "MDT" / "PST" / "PDT" / 1ALPHA / ( ("+" / "-") 4DIGIT )
*/
#define DATE_FORMAT_RFC822 "D, d M y H:i:s O"
/*
* RFC850, Section 2.1.4: http://www.ietf.org/rfc/rfc850.txt
* Format must be acceptable both to the ARPANET and to the getdate routine.
* One format that is acceptable to both is Weekday, DD-Mon-YY HH:MM:SS TIMEZONE
* TIMEZONE can be any timezone name (3 or more letters)
*/
#define DATE_FORMAT_RFC850 "l, d-M-y H:i:s T"
/*
* RFC1036, Section 2.1.2: http://www.ietf.org/rfc/rfc1036.txt
* Its format must be acceptable both in RFC-822 and to the getdate(3)
* Wdy, DD Mon YY HH:MM:SS TIMEZONE
* There is no hope of having a complete list of timezones. Universal
* Time (GMT), the North American timezones (PST, PDT, MST, MDT, CST,
* CDT, EST, EDT) and the +/-hhmm offset specified in RFC-822 should be supported.
*/
#define DATE_FORMAT_RFC1036 "D, d M y H:i:s O"
/*
* RFC1123, Section 5.2.14: http://www.ietf.org/rfc/rfc1123.txt
* RFC-822 Date and Time Specification: RFC-822 Section 5
* The syntax for the date is hereby changed to: date = 1*2DIGIT month 2*4DIGIT
*/
#define DATE_FORMAT_RFC1123 "D, d M Y H:i:s O"
/*
* RFC7231, Section 7.1.1: http://tools.ietf.org/html/rfc7231
*/
#define DATE_FORMAT_RFC7231 "D, d M Y H:i:s \\G\\M\\T"
/*
* RFC2822, Section 3.3: http://www.ietf.org/rfc/rfc2822.txt
* FWS = ([*WSP CRLF] 1*WSP) / ; Folding white space
* CFWS = *([FWS] comment) (([FWS] comment) / FWS)
*
* date-time = [ day-of-week "," ] date FWS time [CFWS]
* day-of-week = ([FWS] day-name)
* day-name = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun"
* date = day month year
* year = 4*DIGIT
* month = (FWS month-name FWS)
* month-name = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec"
* day = ([FWS] 1*2DIGIT)
* time = time-of-day FWS zone
* time-of-day = hour ":" minute [ ":" second ]
* hour = 2DIGIT
* minute = 2DIGIT
* second = 2DIGIT
* zone = (( "+" / "-" ) 4DIGIT)
*/
#define DATE_FORMAT_RFC2822 "D, d M Y H:i:s O"
/*
* RFC3339, Section 5.6: http://www.ietf.org/rfc/rfc3339.txt
* date-fullyear = 4DIGIT
* date-month = 2DIGIT ; 01-12
* date-mday = 2DIGIT ; 01-28, 01-29, 01-30, 01-31 based on month/year
*
* time-hour = 2DIGIT ; 00-23
* time-minute = 2DIGIT ; 00-59
* time-second = 2DIGIT ; 00-58, 00-59, 00-60 based on leap second rules
*
* time-secfrac = "." 1*DIGIT
* time-numoffset = ("+" / "-") time-hour ":" time-minute
* time-offset = "Z" / time-numoffset
*
* partial-time = time-hour ":" time-minute ":" time-second [time-secfrac]
* full-date = date-fullyear "-" date-month "-" date-mday
* full-time = partial-time time-offset
*
* date-time = full-date "T" full-time
*/
#define DATE_FORMAT_RFC3339 "Y-m-d\\TH:i:sP"
#define DATE_FORMAT_ISO8601 "Y-m-d\\TH:i:sO"
/*
* RFC3339, Appendix A: http://www.ietf.org/rfc/rfc3339.txt
* ISO 8601 also requires (in section 5.3.1.3) that a decimal fraction
* be proceeded by a "0" if less than unity. Annex B.2 of ISO 8601
* gives examples where the decimal fractions are not preceded by a "0".
* This grammar assumes section 5.3.1.3 is correct and that Annex B.2 is
* in error.
*/
#define DATE_FORMAT_RFC3339_EXTENDED "Y-m-d\\TH:i:s.vP"
/*
* This comes from various sources that like to contradict. I'm going with the
* format here because of:
* http://msdn.microsoft.com/en-us/library/windows/desktop/aa384321%28v=vs.85%29.aspx
* and http://curl.haxx.se/rfc/cookie_spec.html
*/
#define DATE_FORMAT_COOKIE "l, d-M-Y H:i:s T"
#define SUNFUNCS_RET_TIMESTAMP 0
#define SUNFUNCS_RET_STRING 1
#define SUNFUNCS_RET_DOUBLE 2
/* {{{ PHP_MINIT_FUNCTION */
PHP_MINIT_FUNCTION(date)
{
REGISTER_INI_ENTRIES();
date_register_classes();
/*
* RFC4287, Section 3.3: http://www.ietf.org/rfc/rfc4287.txt
* A Date construct is an element whose content MUST conform to the
* "date-time" production in [RFC3339]. In addition, an uppercase "T"
* character MUST be used to separate date and time, and an uppercase
* "Z" character MUST be present in the absence of a numeric time zone offset.
*/
REGISTER_STRING_CONSTANT("DATE_ATOM", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
/*
* Preliminary specification: http://wp.netscape.com/newsref/std/cookie_spec.html
* "This is based on RFC 822, RFC 850, RFC 1036, and RFC 1123,
* with the variations that the only legal time zone is GMT
* and the separators between the elements of the date must be dashes."
*/
REGISTER_STRING_CONSTANT("DATE_COOKIE", DATE_FORMAT_COOKIE, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_ISO8601", DATE_FORMAT_ISO8601, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC822", DATE_FORMAT_RFC822, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC850", DATE_FORMAT_RFC850, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC1036", DATE_FORMAT_RFC1036, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC1123", DATE_FORMAT_RFC1123, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC7231", DATE_FORMAT_RFC7231, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC2822", DATE_FORMAT_RFC2822, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC3339", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC3339_EXTENDED", DATE_FORMAT_RFC3339_EXTENDED, CONST_CS | CONST_PERSISTENT);
/*
* RSS 2.0 Specification: http://blogs.law.harvard.edu/tech/rss
* "All date-times in RSS conform to the Date and Time Specification of RFC 822,
* with the exception that the year may be expressed with two characters or four characters (four preferred)"
*/
REGISTER_STRING_CONSTANT("DATE_RSS", DATE_FORMAT_RFC1123, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_W3C", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_TIMESTAMP", SUNFUNCS_RET_TIMESTAMP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_STRING", SUNFUNCS_RET_STRING, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_DOUBLE", SUNFUNCS_RET_DOUBLE, CONST_CS | CONST_PERSISTENT);
php_date_global_timezone_db = NULL;
php_date_global_timezone_db_enabled = 0;
DATEG(last_errors) = NULL;
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(date)
{
UNREGISTER_INI_ENTRIES();
if (DATEG(last_errors)) {
timelib_error_container_dtor(DATEG(last_errors));
}
#ifndef ZTS
DATEG(default_timezone) = NULL;
#endif
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(date)
{
const timelib_tzdb *tzdb = DATE_TIMEZONEDB;
php_info_print_table_start();
php_info_print_table_row(2, "date/time support", "enabled");
php_info_print_table_row(2, "timelib version", TIMELIB_ASCII_VERSION);
php_info_print_table_row(2, "\"Olson\" Timezone Database Version", tzdb->version);
php_info_print_table_row(2, "Timezone Database", php_date_global_timezone_db_enabled ? "external" : "internal");
php_info_print_table_row(2, "Default timezone", guess_timezone(tzdb));
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ Timezone Cache functions */
static timelib_tzinfo *php_date_parse_tzfile(const char *formal_tzname, const timelib_tzdb *tzdb)
{
timelib_tzinfo *tzi;
int dummy_error_code;
if(!DATEG(tzcache)) {
ALLOC_HASHTABLE(DATEG(tzcache));
zend_hash_init(DATEG(tzcache), 4, NULL, _php_date_tzinfo_dtor, 0);
}
if ((tzi = zend_hash_str_find_ptr(DATEG(tzcache), formal_tzname, strlen(formal_tzname))) != NULL) {
return tzi;
}
tzi = timelib_parse_tzfile(formal_tzname, tzdb, &dummy_error_code);
if (tzi) {
zend_hash_str_add_ptr(DATEG(tzcache), formal_tzname, strlen(formal_tzname), tzi);
}
return tzi;
}
timelib_tzinfo *php_date_parse_tzfile_wrapper(const char *formal_tzname, const timelib_tzdb *tzdb, int *dummy_error_code)
{
return php_date_parse_tzfile(formal_tzname, tzdb);
}
/* }}} */
/* Callback to check the date.timezone only when changed increases performance */
/* {{{ static PHP_INI_MH(OnUpdate_date_timezone) */
static PHP_INI_MH(OnUpdate_date_timezone)
{
if (OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage) == FAILURE) {
return FAILURE;
}
DATEG(timezone_valid) = 0;
if (stage == PHP_INI_STAGE_RUNTIME) {
if (!timelib_timezone_id_is_valid(DATEG(default_timezone), DATE_TIMEZONEDB)) {
if (DATEG(default_timezone) && *DATEG(default_timezone)) {
php_error_docref(NULL, E_WARNING, "Invalid date.timezone value '%s', we selected the timezone 'UTC' for now.", DATEG(default_timezone));
}
} else {
DATEG(timezone_valid) = 1;
}
}
return SUCCESS;
}
/* }}} */
/* {{{ Helper functions */
static char* guess_timezone(const timelib_tzdb *tzdb)
{
/* Checking configure timezone */
if (DATEG(timezone) && (strlen(DATEG(timezone))) > 0) {
return DATEG(timezone);
}
/* Check config setting for default timezone */
if (!DATEG(default_timezone)) {
/* Special case: ext/date wasn't initialized yet */
zval *ztz;
if (NULL != (ztz = cfg_get_entry("date.timezone", sizeof("date.timezone")))
&& Z_TYPE_P(ztz) == IS_STRING && Z_STRLEN_P(ztz) > 0 && timelib_timezone_id_is_valid(Z_STRVAL_P(ztz), tzdb)) {
return Z_STRVAL_P(ztz);
}
} else if (*DATEG(default_timezone)) {
if (DATEG(timezone_valid) == 1) {
return DATEG(default_timezone);
}
if (!timelib_timezone_id_is_valid(DATEG(default_timezone), tzdb)) {
php_error_docref(NULL, E_WARNING, "Invalid date.timezone value '%s', we selected the timezone 'UTC' for now.", DATEG(default_timezone));
return "UTC";
}
DATEG(timezone_valid) = 1;
return DATEG(default_timezone);
}
/* Fallback to UTC */
return "UTC";
}
PHPAPI timelib_tzinfo *get_timezone_info(void)
{
char *tz;
timelib_tzinfo *tzi;
tz = guess_timezone(DATE_TIMEZONEDB);
tzi = php_date_parse_tzfile(tz, DATE_TIMEZONEDB);
if (! tzi) {
zend_throw_error(NULL, "Timezone database is corrupt. Please file a bug report as this should never happen");
}
return tzi;
}
/* }}} */
/* {{{ date() and gmdate() data */
#include "zend_smart_str.h"
static const char * const mon_full_names[] = {
"January", "February", "March", "April",
"May", "June", "July", "August",
"September", "October", "November", "December"
};
static const char * const mon_short_names[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
static const char * const day_full_names[] = {
"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
};
static const char * const day_short_names[] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static char *english_suffix(timelib_sll number)
{
if (number >= 10 && number <= 19) {
return "th";
} else {
switch (number % 10) {
case 1: return "st";
case 2: return "nd";
case 3: return "rd";
}
}
return "th";
}
/* }}} */
/* {{{ day of week helpers */
static const char *php_date_full_day_name(timelib_sll y, timelib_sll m, timelib_sll d)
{
timelib_sll day_of_week = timelib_day_of_week(y, m, d);
if (day_of_week < 0) {
return "Unknown";
}
return day_full_names[day_of_week];
}
static const char *php_date_short_day_name(timelib_sll y, timelib_sll m, timelib_sll d)
{
timelib_sll day_of_week = timelib_day_of_week(y, m, d);
if (day_of_week < 0) {
return "Unknown";
}
return day_short_names[day_of_week];
}
/* }}} */
/* {{{ date_format - (gm)date helper */
static zend_string *date_format(const char *format, size_t format_len, timelib_time *t, int localtime)
{
smart_str string = {0};
size_t i;
int length = 0;
char buffer[97];
timelib_time_offset *offset = NULL;
timelib_sll isoweek, isoyear;
int rfc_colon;
int weekYearSet = 0;
if (!format_len) {
return ZSTR_EMPTY_ALLOC();
}
if (localtime) {
if (t->zone_type == TIMELIB_ZONETYPE_ABBR) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z + (t->dst * 3600));
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = timelib_strdup(t->tz_abbr);
} else if (t->zone_type == TIMELIB_ZONETYPE_OFFSET) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z);
offset->leap_secs = 0;
offset->is_dst = 0;
offset->abbr = timelib_malloc(9); /* GMT±xxxx\0 */
snprintf(offset->abbr, 9, "GMT%c%02d%02d",
(offset->offset < 0) ? '-' : '+',
abs(offset->offset / 3600),
abs((offset->offset % 3600) / 60));
} else {
offset = timelib_get_time_zone_info(t->sse, t->tz_info);
}
}
for (i = 0; i < format_len; i++) {
rfc_colon = 0;
switch (format[i]) {
/* day */
case 'd': length = slprintf(buffer, sizeof(buffer), "%02d", (int) t->d); break;
case 'D': length = slprintf(buffer, sizeof(buffer), "%s", php_date_short_day_name(t->y, t->m, t->d)); break;
case 'j': length = slprintf(buffer, sizeof(buffer), "%d", (int) t->d); break;
case 'l': length = slprintf(buffer, sizeof(buffer), "%s", php_date_full_day_name(t->y, t->m, t->d)); break;
case 'S': length = slprintf(buffer, sizeof(buffer), "%s", english_suffix(t->d)); break;
case 'w': length = slprintf(buffer, sizeof(buffer), "%d", (int) timelib_day_of_week(t->y, t->m, t->d)); break;
case 'N': length = slprintf(buffer, sizeof(buffer), "%d", (int) timelib_iso_day_of_week(t->y, t->m, t->d)); break;
case 'z': length = slprintf(buffer, sizeof(buffer), "%d", (int) timelib_day_of_year(t->y, t->m, t->d)); break;
/* week */
case 'W':
if(!weekYearSet) { timelib_isoweek_from_date(t->y, t->m, t->d, &isoweek, &isoyear); weekYearSet = 1; }
length = slprintf(buffer, sizeof(buffer), "%02d", (int) isoweek); break; /* iso weeknr */
case 'o':
if(!weekYearSet) { timelib_isoweek_from_date(t->y, t->m, t->d, &isoweek, &isoyear); weekYearSet = 1; }
length = slprintf(buffer, sizeof(buffer), ZEND_LONG_FMT, (zend_long) isoyear); break; /* iso year */
/* month */
case 'F': length = slprintf(buffer, sizeof(buffer), "%s", mon_full_names[t->m - 1]); break;
case 'm': length = slprintf(buffer, sizeof(buffer), "%02d", (int) t->m); break;
case 'M': length = slprintf(buffer, sizeof(buffer), "%s", mon_short_names[t->m - 1]); break;
case 'n': length = slprintf(buffer, sizeof(buffer), "%d", (int) t->m); break;
case 't': length = slprintf(buffer, sizeof(buffer), "%d", (int) timelib_days_in_month(t->y, t->m)); break;
/* year */
case 'L': length = slprintf(buffer, sizeof(buffer), "%d", timelib_is_leap((int) t->y)); break;
case 'y': length = slprintf(buffer, sizeof(buffer), "%02d", (int) (t->y % 100)); break;
case 'Y': length = slprintf(buffer, sizeof(buffer), "%s%04lld", t->y < 0 ? "-" : "", php_date_llabs((timelib_sll) t->y)); break;
/* time */
case 'a': length = slprintf(buffer, sizeof(buffer), "%s", t->h >= 12 ? "pm" : "am"); break;
case 'A': length = slprintf(buffer, sizeof(buffer), "%s", t->h >= 12 ? "PM" : "AM"); break;
case 'B': {
int retval = ((((long)t->sse)-(((long)t->sse) - ((((long)t->sse) % 86400) + 3600))) * 10);
if (retval < 0) {
retval += 864000;
}
/* Make sure to do this on a positive int to avoid rounding errors */
retval = (retval / 864) % 1000;
length = slprintf(buffer, sizeof(buffer), "%03d", retval);
break;
}
case 'g': length = slprintf(buffer, sizeof(buffer), "%d", (t->h % 12) ? (int) t->h % 12 : 12); break;
case 'G': length = slprintf(buffer, sizeof(buffer), "%d", (int) t->h); break;
case 'h': length = slprintf(buffer, sizeof(buffer), "%02d", (t->h % 12) ? (int) t->h % 12 : 12); break;
case 'H': length = slprintf(buffer, sizeof(buffer), "%02d", (int) t->h); break;
case 'i': length = slprintf(buffer, sizeof(buffer), "%02d", (int) t->i); break;
case 's': length = slprintf(buffer, sizeof(buffer), "%02d", (int) t->s); break;
case 'u': length = slprintf(buffer, sizeof(buffer), "%06d", (int) floor(t->us)); break;
case 'v': length = slprintf(buffer, sizeof(buffer), "%03d", (int) floor(t->us / 1000)); break;
/* timezone */
case 'I': length = slprintf(buffer, sizeof(buffer), "%d", localtime ? offset->is_dst : 0); break;
case 'p':
if (!localtime || strcmp(offset->abbr, "UTC") == 0 || strcmp(offset->abbr, "Z") == 0) {
length = slprintf(buffer, sizeof(buffer), "%s", "Z");
break;
}
/* break intentionally missing */
case 'P': rfc_colon = 1; /* break intentionally missing */
case 'O': length = slprintf(buffer, sizeof(buffer), "%c%02d%s%02d",
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
rfc_colon ? ":" : "",
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'T': length = slprintf(buffer, sizeof(buffer), "%s", localtime ? offset->abbr : "GMT"); break;
case 'e': if (!localtime) {
length = slprintf(buffer, sizeof(buffer), "%s", "UTC");
} else {
switch (t->zone_type) {
case TIMELIB_ZONETYPE_ID:
length = slprintf(buffer, sizeof(buffer), "%s", t->tz_info->name);
break;
case TIMELIB_ZONETYPE_ABBR:
length = slprintf(buffer, sizeof(buffer), "%s", offset->abbr);
break;
case TIMELIB_ZONETYPE_OFFSET:
length = slprintf(buffer, sizeof(buffer), "%c%02d:%02d",
((offset->offset < 0) ? '-' : '+'),
abs(offset->offset / 3600),
abs((offset->offset % 3600) / 60)
);
break;
}
}
break;
case 'Z': length = slprintf(buffer, sizeof(buffer), "%d", localtime ? offset->offset : 0); break;
/* full date/time */
case 'c': length = slprintf(buffer, sizeof(buffer), "%04" ZEND_LONG_FMT_SPEC "-%02d-%02dT%02d:%02d:%02d%c%02d:%02d",
(zend_long) t->y, (int) t->m, (int) t->d,
(int) t->h, (int) t->i, (int) t->s,
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'r': length = slprintf(buffer, sizeof(buffer), "%3s, %02d %3s %04" ZEND_LONG_FMT_SPEC " %02d:%02d:%02d %c%02d%02d",
php_date_short_day_name(t->y, t->m, t->d),
(int) t->d, mon_short_names[t->m - 1],
(zend_long) t->y, (int) t->h, (int) t->i, (int) t->s,
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'U': length = slprintf(buffer, sizeof(buffer), "%lld", (timelib_sll) t->sse); break;
case '\\': if (i < format_len) i++; /* break intentionally missing */
default: buffer[0] = format[i]; buffer[1] = '\0'; length = 1; break;
}
smart_str_appendl(&string, buffer, length);
}
smart_str_0(&string);
if (localtime) {
timelib_time_offset_dtor(offset);
}
return string.s;
}
static void php_date(INTERNAL_FUNCTION_PARAMETERS, int localtime)
{
zend_string *format;
zend_long ts;
zend_bool ts_is_null = 1;
ZEND_PARSE_PARAMETERS_START(1, 2)
Z_PARAM_STR(format)
Z_PARAM_OPTIONAL
Z_PARAM_LONG_OR_NULL(ts, ts_is_null)
ZEND_PARSE_PARAMETERS_END();
if (ts_is_null) {
ts = php_time();
}
RETURN_STR(php_format_date(ZSTR_VAL(format), ZSTR_LEN(format), ts, localtime));
}
/* }}} */
PHPAPI zend_string *php_format_date(const char *format, size_t format_len, time_t ts, int localtime) /* {{{ */
{
timelib_time *t;
timelib_tzinfo *tzi;
zend_string *string;
t = timelib_time_ctor();
if (localtime) {
tzi = get_timezone_info();
t->tz_info = tzi;
t->zone_type = TIMELIB_ZONETYPE_ID;
timelib_unixtime2local(t, ts);
} else {
tzi = NULL;
timelib_unixtime2gmt(t, ts);
}
string = date_format(format, format_len, t, localtime);
timelib_time_dtor(t);
return string;
}
/* }}} */
/* {{{ php_idate */
PHPAPI int php_idate(char format, time_t ts, int localtime)
{
timelib_time *t;
timelib_tzinfo *tzi;
int retval = -1;
timelib_time_offset *offset = NULL;
timelib_sll isoweek, isoyear;
t = timelib_time_ctor();
if (!localtime) {
tzi = get_timezone_info();
t->tz_info = tzi;
t->zone_type = TIMELIB_ZONETYPE_ID;
timelib_unixtime2local(t, ts);
} else {
tzi = NULL;
timelib_unixtime2gmt(t, ts);
}
if (!localtime) {
if (t->zone_type == TIMELIB_ZONETYPE_ABBR) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z + (t->dst * 3600));
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = timelib_strdup(t->tz_abbr);
} else if (t->zone_type == TIMELIB_ZONETYPE_OFFSET) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z + (t->dst * 3600));
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = timelib_malloc(9); /* GMT±xxxx\0 */
snprintf(offset->abbr, 9, "GMT%c%02d%02d",
(offset->offset < 0) ? '-' : '+',
abs(offset->offset / 3600),
abs((offset->offset % 3600) / 60));
} else {
offset = timelib_get_time_zone_info(t->sse, t->tz_info);
}
}
timelib_isoweek_from_date(t->y, t->m, t->d, &isoweek, &isoyear);
switch (format) {
/* day */
case 'd': case 'j': retval = (int) t->d; break;
case 'w': retval = (int) timelib_day_of_week(t->y, t->m, t->d); break;
case 'z': retval = (int) timelib_day_of_year(t->y, t->m, t->d); break;
/* week */
case 'W': retval = (int) isoweek; break; /* iso weeknr */
/* month */
case 'm': case 'n': retval = (int) t->m; break;
case 't': retval = (int) timelib_days_in_month(t->y, t->m); break;
/* year */
case 'L': retval = (int) timelib_is_leap((int) t->y); break;
case 'y': retval = (int) (t->y % 100); break;
case 'Y': retval = (int) t->y; break;
/* Swatch Beat a.k.a. Internet Time */
case 'B':
retval = ((((long)t->sse)-(((long)t->sse) - ((((long)t->sse) % 86400) + 3600))) * 10);
if (retval < 0) {
retval += 864000;
}
/* Make sure to do this on a positive int to avoid rounding errors */
retval = (retval / 864) % 1000;
break;
/* time */
case 'g': case 'h': retval = (int) ((t->h % 12) ? (int) t->h % 12 : 12); break;
case 'H': case 'G': retval = (int) t->h; break;
case 'i': retval = (int) t->i; break;
case 's': retval = (int) t->s; break;
/* timezone */
case 'I': retval = (int) (!localtime ? offset->is_dst : 0); break;
case 'Z': retval = (int) (!localtime ? offset->offset : 0); break;
case 'U': retval = (int) t->sse; break;
}
if (!localtime) {
timelib_time_offset_dtor(offset);
}
timelib_time_dtor(t);
return retval;
}
/* }}} */
/* {{{ Format a local date/time */
PHP_FUNCTION(date)
{
php_date(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ Format a GMT date/time */
PHP_FUNCTION(gmdate)
{
php_date(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Format a local time/date as integer */
PHP_FUNCTION(idate)
{
zend_string *format;
zend_long ts;
zend_bool ts_is_null = 1;
int ret;
ZEND_PARSE_PARAMETERS_START(1, 2)
Z_PARAM_STR(format)
Z_PARAM_OPTIONAL
Z_PARAM_LONG_OR_NULL(ts, ts_is_null)
ZEND_PARSE_PARAMETERS_END();
if (ZSTR_LEN(format) != 1) {
php_error_docref(NULL, E_WARNING, "idate format is one char");
RETURN_FALSE;
}
if (ts_is_null) {
ts = php_time();
}
ret = php_idate(ZSTR_VAL(format)[0], ts, 0);
if (ret == -1) {
php_error_docref(NULL, E_WARNING, "Unrecognized date format token");
RETURN_FALSE;
}
RETURN_LONG(ret);
}
/* }}} */
/* {{{ php_date_set_tzdb - NOT THREADSAFE */
PHPAPI void php_date_set_tzdb(timelib_tzdb *tzdb)
{
const timelib_tzdb *builtin = timelib_builtin_db();
if (php_version_compare(tzdb->version, builtin->version) > 0) {
php_date_global_timezone_db = tzdb;
php_date_global_timezone_db_enabled = 1;
}
}
/* }}} */
/* {{{ php_parse_date: Backwards compatibility function */
PHPAPI zend_long php_parse_date(const char *string, zend_long *now)
{
timelib_time *parsed_time;
timelib_error_container *error = NULL;
int error2;
zend_long retval;
parsed_time = timelib_strtotime(string, strlen(string), &error, DATE_TIMEZONEDB, php_date_parse_tzfile_wrapper);
if (error->error_count) {
timelib_time_dtor(parsed_time);