1 /*
2    +----------------------------------------------------------------------+
3    | This source file is subject to version 3.01 of the PHP license,      |
4    | that is bundled with this package in the file LICENSE, and is        |
5    | available through the world-wide-web at the following url:           |
6    | https://www.php.net/license/3_01.txt                                 |
7    | If you did not receive a copy of the PHP license and are unable to   |
8    | obtain it through the world-wide-web, please send a note to          |
9    | license@php.net so we can mail you a copy immediately.               |
10    +----------------------------------------------------------------------+
11    | Authors: Kirti Velankar <kirtig@yahoo-inc.com>                       |
12    +----------------------------------------------------------------------+
13 */
14 
15 #ifdef HAVE_CONFIG_H
16 #include "config.h"
17 #endif
18 
19 #include "../php_intl.h"
20 
21 #include <unicode/ustring.h>
22 #include <unicode/ucal.h>
23 
24 #include "../intl_convert.h"
25 #include "../common/common_date.h"
26 #include "dateformat.h"
27 #include "dateformat_class.h"
28 #include "dateformat_data.h"
29 
30 /* {{{ Internal function which calls the udat_format */
internal_format(IntlDateFormatter_object * dfo,UDate timestamp,zval * return_value)31 static void internal_format(IntlDateFormatter_object *dfo, UDate timestamp, zval *return_value)
32 {
33 	UChar* 	formatted =  NULL;
34 	int32_t	resultlengthneeded =0 ;
35 
36 	resultlengthneeded=udat_format( DATE_FORMAT_OBJECT(dfo), timestamp, NULL, resultlengthneeded, NULL, &INTL_DATA_ERROR_CODE(dfo));
37 	if(INTL_DATA_ERROR_CODE(dfo)==U_BUFFER_OVERFLOW_ERROR)
38 	{
39 		INTL_DATA_ERROR_CODE(dfo)=U_ZERO_ERROR;
40 		formatted=(UChar*)emalloc(sizeof(UChar) * resultlengthneeded);
41 		udat_format( DATE_FORMAT_OBJECT(dfo), timestamp, formatted, resultlengthneeded, NULL, &INTL_DATA_ERROR_CODE(dfo));
42 	}
43 
44 	if (formatted && U_FAILURE( INTL_DATA_ERROR_CODE(dfo) ) ) {
45 			efree(formatted);
46 	}
47 
48 	INTL_METHOD_CHECK_STATUS( dfo, "Date formatting failed" );
49 	INTL_METHOD_RETVAL_UTF8( dfo, formatted, resultlengthneeded, 1 );
50 
51 }
52 /* }}} */
53 
54 
55 /* {{{ Internal function which fetches an element from the passed array for the key_name passed */
internal_get_arr_ele(IntlDateFormatter_object * dfo,HashTable * hash_arr,char * key_name,intl_error * err)56 static int32_t internal_get_arr_ele(IntlDateFormatter_object *dfo,
57 		HashTable* hash_arr, char* key_name, intl_error *err)
58 {
59 	zval	*ele_value	= NULL;
60 	int32_t	result		= 0;
61 	char	*message;
62 
63 	if (U_FAILURE(err->code)) {
64 		return result;
65 	}
66 
67 	if ((ele_value = zend_hash_str_find(hash_arr, key_name, strlen(key_name))) != NULL) {
68 		if(Z_TYPE_P(ele_value) != IS_LONG) {
69 			spprintf(&message, 0, "datefmt_format: parameter array contains "
70 					"a non-integer element for key '%s'", key_name);
71 			intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR, message, 1);
72 			efree(message);
73 		} else {
74 			if (Z_LVAL_P(ele_value) > INT32_MAX ||
75 					Z_LVAL_P(ele_value) < INT32_MIN) {
76 				spprintf(&message, 0, "datefmt_format: value " ZEND_LONG_FMT " is out of "
77 						"bounds for a 32-bit integer in key '%s'",
78 						Z_LVAL_P(ele_value), key_name);
79 				intl_errors_set(err, U_ILLEGAL_ARGUMENT_ERROR, message, 1);
80 				efree(message);
81 			} else {
82 				result = Z_LVAL_P(ele_value);
83 			}
84 		}
85 	}
86 
87 	return result;
88 }
89 /* }}} */
90 
91 /* {{{ Internal function which sets UCalendar  from the passed array and retrieves timestamp */
internal_get_timestamp(IntlDateFormatter_object * dfo,HashTable * hash_arr)92 static UDate internal_get_timestamp(IntlDateFormatter_object *dfo,
93 		HashTable *hash_arr)
94 {
95 	int32_t		year,
96 				month,
97 				hour,
98 				minute,
99 				second,
100 				mday;
101 	UCalendar	*pcal;
102 	UDate		result;
103 	intl_error	*err = &dfo->datef_data.error;
104 
105 #define INTL_GET_ELEM(elem) \
106 	internal_get_arr_ele(dfo, hash_arr, (elem), err)
107 
108 	/* Fetch  values from the incoming array */
109 	year	= INTL_GET_ELEM(CALENDAR_YEAR) + 1900; /* tm_year is years since 1900 */
110 	/* Month in ICU and PHP starts from January =0 */
111 	month	= INTL_GET_ELEM(CALENDAR_MON);
112 	hour	= INTL_GET_ELEM(CALENDAR_HOUR);
113 	minute	= INTL_GET_ELEM(CALENDAR_MIN);
114 	second	= INTL_GET_ELEM(CALENDAR_SEC);
115 	/* For the ucal_setDateTime() function, this is the 'date'  value */
116 	mday	= INTL_GET_ELEM(CALENDAR_MDAY);
117 
118 #undef INTL_GET_ELEM
119 
120 	pcal = ucal_clone(udat_getCalendar(DATE_FORMAT_OBJECT(dfo)),
121 			&INTL_DATA_ERROR_CODE(dfo));
122 
123 	if (INTL_DATA_ERROR_CODE(dfo) != U_ZERO_ERROR) {
124 		intl_errors_set(err, INTL_DATA_ERROR_CODE(dfo), "datefmt_format: "
125 				"error cloning calendar", 0);
126 		return 0;
127 	}
128 
129 	/* set the incoming values for the calendar */
130 	ucal_setDateTime(pcal, year, month, mday, hour, minute, second, &INTL_DATA_ERROR_CODE(dfo));
131 	/* actually, ucal_setDateTime cannot fail */
132 
133 	/* Fetch the timestamp from the UCalendar */
134 	result = ucal_getMillis(pcal, &INTL_DATA_ERROR_CODE(dfo));
135 	ucal_close(pcal);
136 	return result;
137 }
138 
139 
140 /* {{{ Format the time value as a string. */
PHP_FUNCTION(datefmt_format)141 PHP_FUNCTION(datefmt_format)
142 {
143 	UDate 		timestamp	= 0;
144 	HashTable	*hash_arr	= NULL;
145 	zval		*zarg		= NULL;
146 
147 	DATE_FORMAT_METHOD_INIT_VARS;
148 
149 	/* Parse parameters. */
150 	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "Oz",
151 			&object, IntlDateFormatter_ce_ptr, &zarg) == FAILURE) {
152 		intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, "datefmt_format: unable "
153 				"to parse input params", 0 );
154 		RETURN_THROWS();
155 	}
156 
157 	DATE_FORMAT_METHOD_FETCH_OBJECT;
158 
159 	if (Z_TYPE_P(zarg) == IS_ARRAY) {
160 		hash_arr = Z_ARRVAL_P(zarg);
161 		if (!hash_arr || zend_hash_num_elements(hash_arr) == 0) {
162 			RETURN_FALSE;
163 		}
164 
165 		timestamp = internal_get_timestamp(dfo, hash_arr);
166 		INTL_METHOD_CHECK_STATUS(dfo, "datefmt_format: date formatting failed")
167 	} else {
168 		timestamp = intl_zval_to_millis(zarg, INTL_DATA_ERROR_P(dfo),
169 				"datefmt_format");
170 		if (U_FAILURE(INTL_DATA_ERROR_CODE(dfo))) {
171 			RETURN_FALSE;
172 		}
173 	}
174 
175 	internal_format( dfo, timestamp, return_value);
176 }
177 
178 /* }}} */
179