summaryrefslogtreecommitdiff
path: root/ext/intl/common/common_date.cpp
blob: 4da00b0221fb28c9e554272ed65053b6df7984f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | 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: Gustavo Lopes <cataphract@php.net>                          |
   +----------------------------------------------------------------------+
*/

#include "../intl_cppshims.h"

#include <unicode/calendar.h>

extern "C" {
#include "../php_intl.h"
#define USE_CALENDAR_POINTER 1
#include "../calendar/calendar_class.h"
#include <ext/date/php_date.h>
}

#include "zend_portability.h"

/* {{{ timezone_convert_datetimezone
 *      The timezone in DateTime and DateTimeZone is not unified. */
U_CFUNC TimeZone *timezone_convert_datetimezone(int type,
												void *object,
												int is_datetime,
												intl_error *outside_error,
												const char *func)
{
	char		*id = NULL,
				offset_id[] = "GMT+00:00";
	int32_t		id_len = 0;
	char		*message;
	TimeZone	*timeZone;

	switch (type) {
		case TIMELIB_ZONETYPE_ID:
			id = is_datetime
				? ((php_date_obj*)object)->time->tz_info->name
				: ((php_timezone_obj*)object)->tzi.tz->name;
			id_len = strlen(id);
			break;
		case TIMELIB_ZONETYPE_OFFSET: {
			int offset_mins = is_datetime
				? ((php_date_obj*)object)->time->z / 60
				: (int)((php_timezone_obj*)object)->tzi.utc_offset / 60,
				hours = offset_mins / 60,
				minutes = offset_mins - hours * 60;
			minutes *= minutes > 0 ? 1 : -1;

			if (offset_mins <= -24 * 60 || offset_mins >= 24 * 60) {
				spprintf(&message, 0, "%s: object has an time zone offset "
					"that's too large", func);
				intl_errors_set(outside_error, U_ILLEGAL_ARGUMENT_ERROR,
					message, 1);
				efree(message);
				return NULL;
			}

			id = offset_id;
			id_len = slprintf(id, sizeof(offset_id), "GMT%+03d:%02d",
				hours, minutes);
			break;
		}
		case TIMELIB_ZONETYPE_ABBR:
			id = is_datetime
				? ((php_date_obj*)object)->time->tz_abbr
				: ((php_timezone_obj*)object)->tzi.z.abbr;
			id_len = strlen(id);
			break;
	}

	UnicodeString s = UnicodeString(id, id_len, US_INV);
	timeZone = TimeZone::createTimeZone(s);
#if U_ICU_VERSION_MAJOR_NUM >= 49
	if (*timeZone == TimeZone::getUnknown()) {
#else
	UnicodeString resultingId;
	timeZone->getID(resultingId);
	if (resultingId == UnicodeString("Etc/Unknown", -1, US_INV)
			|| resultingId == UnicodeString("GMT", -1, US_INV)) {
#endif
		spprintf(&message, 0, "%s: time zone id '%s' "
			"extracted from ext/date DateTimeZone not recognized", func, id);
		intl_errors_set(outside_error, U_ILLEGAL_ARGUMENT_ERROR,
			message, 1);
		efree(message);
		delete timeZone;
		return NULL;
	}
	return timeZone;
}
/* }}} */

U_CFUNC int intl_datetime_decompose(zval *z, double *millis, TimeZone **tz,
		intl_error *err, const char *func)
{
	zval	retval;
	zval	zfuncname;
	char	*message;

	if (err && U_FAILURE(err->code)) {
		return FAILURE;
	}

	if (millis) {
		*millis = ZEND_NAN;
	}
	if (tz) {
		*tz = NULL;
	}

	if (millis) {
		php_date_obj *datetime;

		ZVAL_STRING(&zfuncname, "getTimestamp");
		if (call_user_function(NULL, z, &zfuncname, &retval, 0, NULL)
				!= SUCCESS || Z_TYPE(retval) != IS_LONG) {
			spprintf(&message, 0, "%s: error calling ::getTimeStamp() on the "
					"object", func);
			intl_errors_set(err, U_INTERNAL_PROGRAM_ERROR,
				message, 1);
			efree(message);
			zval_ptr_dtor(&zfuncname);
			return FAILURE;
		}

		datetime = Z_PHPDATE_P(z);
		*millis = U_MILLIS_PER_SECOND * (double)Z_LVAL(retval) + (datetime->time->us / 1000);
		zval_ptr_dtor(&zfuncname);
	}

	if (tz) {
		php_date_obj *datetime;
		datetime = Z_PHPDATE_P(z);
		if (!datetime->time) {
			spprintf(&message, 0, "%s: the %s object is not properly "
					"initialized", func, ZSTR_VAL(Z_OBJCE_P(z)->name));
			intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
				message, 1);
			efree(message);
			return FAILURE;
		}
		if (!datetime->time->is_localtime) {
			*tz = TimeZone::getGMT()->clone();
		} else {
			*tz = timezone_convert_datetimezone(datetime->time->zone_type,
				datetime, 1, NULL, func);
			if (*tz == NULL) {
				spprintf(&message, 0, "%s: could not convert DateTime's "
						"time zone", func);
				intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
					message, 1);
				efree(message);
				return FAILURE;
			}
		}
	}

	return SUCCESS;
}

U_CFUNC double intl_zval_to_millis(zval *z, intl_error *err, const char *func)
{
	double	rv = ZEND_NAN;
	zend_long	lv;
	int		type;
	char	*message;

	if (err && U_FAILURE(err->code)) {
		return ZEND_NAN;
	}

	switch (Z_TYPE_P(z)) {
	case IS_STRING:
		type = is_numeric_string(Z_STRVAL_P(z), Z_STRLEN_P(z), &lv, &rv, 0);
		if (type == IS_DOUBLE) {
			rv *= U_MILLIS_PER_SECOND;
		} else if (type == IS_LONG) {
			rv = U_MILLIS_PER_SECOND * (double)lv;
		} else {
			spprintf(&message, 0, "%s: string '%s' is not numeric, "
					"which would be required for it to be a valid date", func,
					Z_STRVAL_P(z));
			intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
				message, 1);
			efree(message);
		}
		break;
	case IS_LONG:
		rv = U_MILLIS_PER_SECOND * (double)Z_LVAL_P(z);
		break;
	case IS_DOUBLE:
		rv = U_MILLIS_PER_SECOND * Z_DVAL_P(z);
		break;
	case IS_OBJECT:
		if (instanceof_function(Z_OBJCE_P(z), php_date_get_interface_ce())) {
			intl_datetime_decompose(z, &rv, NULL, err, func);
		} else if (instanceof_function(Z_OBJCE_P(z), Calendar_ce_ptr)) {
			Calendar_object *co = Z_INTL_CALENDAR_P(z);
			if (co->ucal == NULL) {
				spprintf(&message, 0, "%s: IntlCalendar object is not properly "
						"constructed", func);
				intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
					message, 1);
				efree(message);
			} else {
				UErrorCode status = UErrorCode();
				rv = (double)co->ucal->getTime(status);
				if (U_FAILURE(status)) {
					spprintf(&message, 0, "%s: call to internal "
							"Calendar::getTime() has failed", func);
					intl_errors_set(err, status, message, 1);
					efree(message);
				}
			}
		} else {
			/* TODO: try with cast(), get() to obtain a number */
			spprintf(&message, 0, "%s: invalid object type for date/time "
					"(only IntlCalendar and DateTimeInterface permitted)", func);
			intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
				message, 1);
			efree(message);
		}
		break;
	default:
		spprintf(&message, 0, "%s: invalid PHP type for date", func);
		intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR,
			message, 1);
		efree(message);
		break;
	}

	return rv;
}