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    | http://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 <unicode/ustring.h>
20 #include <math.h>
21 
22 #include "php_intl.h"
23 #include "intl_convert.h"
24 #include "dateformat.h"
25 #include "dateformat_class.h"
26 #include "dateformat_data.h"
27 
28 /* {{{
29  * Internal function which calls the udat_parse
30  * param int store_error acts like a boolean
31  *	if set to 1 - store any error encountered  in the parameter parse_error
32  *	if set to 0 - no need to store any error encountered  in the parameter parse_error
33 */
internal_parse_to_timestamp(IntlDateFormatter_object * dfo,char * text_to_parse,size_t text_len,int32_t * parse_pos,zval * return_value)34 static void internal_parse_to_timestamp(IntlDateFormatter_object *dfo, char* text_to_parse, size_t text_len, int32_t *parse_pos, zval *return_value)
35 {
36 	double	result =  0;
37 	UDate 	timestamp   =0;
38 	UChar* 	text_utf16  = NULL;
39 	int32_t text_utf16_len = 0;
40 
41 	/* Convert timezone to UTF-16. */
42 	intl_convert_utf8_to_utf16(&text_utf16, &text_utf16_len, text_to_parse, text_len, &INTL_DATA_ERROR_CODE(dfo));
43 	INTL_METHOD_CHECK_STATUS(dfo, "Error converting timezone to UTF-16" );
44 
45 	timestamp = udat_parse( DATE_FORMAT_OBJECT(dfo), text_utf16, text_utf16_len, parse_pos, &INTL_DATA_ERROR_CODE(dfo));
46 	if( text_utf16 ){
47 		efree(text_utf16);
48 	}
49 
50 	INTL_METHOD_CHECK_STATUS( dfo, "Date parsing failed" );
51 
52 	/* Since return is in  sec. */
53 	result = (double)timestamp / U_MILLIS_PER_SECOND;
54 	if (result > (double)LONG_MAX || result < (double)LONG_MIN) {
55 		ZVAL_DOUBLE(return_value, result<0?ceil(result):floor(result));
56 	} else {
57 		ZVAL_LONG(return_value, (zend_long)result);
58 	}
59 }
60 /* }}} */
61 
add_to_localtime_arr(IntlDateFormatter_object * dfo,zval * return_value,const UCalendar * parsed_calendar,zend_long calendar_field,char * key_name)62 static void add_to_localtime_arr( IntlDateFormatter_object *dfo, zval* return_value, const UCalendar *parsed_calendar, zend_long calendar_field, char* key_name)
63 {
64 	zend_long calendar_field_val = ucal_get( parsed_calendar, calendar_field, &INTL_DATA_ERROR_CODE(dfo));
65 	INTL_METHOD_CHECK_STATUS( dfo, "Date parsing - localtime failed : could not get a field from calendar" );
66 
67 	if( strcmp(key_name, CALENDAR_YEAR )==0 ){
68 		/* since tm_year is years from 1900 */
69 		add_assoc_long( return_value, key_name,( calendar_field_val-1900) );
70 	}else if( strcmp(key_name, CALENDAR_WDAY )==0 ){
71 		/* since tm_wday starts from 0 whereas ICU WDAY start from 1 */
72 		add_assoc_long( return_value, key_name,( calendar_field_val-1) );
73 	}else{
74 		add_assoc_long( return_value, key_name, calendar_field_val );
75 	}
76 }
77 
78 /* {{{ Internal function which calls the udat_parseCalendar */
internal_parse_to_localtime(IntlDateFormatter_object * dfo,char * text_to_parse,size_t text_len,int32_t * parse_pos,zval * return_value)79 static void internal_parse_to_localtime(IntlDateFormatter_object *dfo, char* text_to_parse, size_t text_len, int32_t *parse_pos, zval *return_value)
80 {
81 	UCalendar      *parsed_calendar = NULL;
82 	UChar*  	text_utf16  = NULL;
83 	int32_t 	text_utf16_len = 0;
84 	zend_long 		isInDST = 0;
85 
86 	/* Convert timezone to UTF-16. */
87 	intl_convert_utf8_to_utf16(&text_utf16, &text_utf16_len, text_to_parse, text_len, &INTL_DATA_ERROR_CODE(dfo));
88 	INTL_METHOD_CHECK_STATUS(dfo, "Error converting timezone to UTF-16" );
89 
90 	parsed_calendar = (UCalendar *)udat_getCalendar(DATE_FORMAT_OBJECT(dfo));
91 	udat_parseCalendar( DATE_FORMAT_OBJECT(dfo), parsed_calendar, text_utf16, text_utf16_len, parse_pos, &INTL_DATA_ERROR_CODE(dfo));
92 
93 	if (text_utf16) {
94 		efree(text_utf16);
95 	}
96 
97 	INTL_METHOD_CHECK_STATUS( dfo, "Date parsing failed" );
98 
99 
100 	array_init( return_value );
101 	/* Add  entries from various fields of the obtained parsed_calendar */
102 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_SECOND, CALENDAR_SEC);
103 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MINUTE, CALENDAR_MIN);
104 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_HOUR_OF_DAY, CALENDAR_HOUR);
105 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_YEAR, CALENDAR_YEAR);
106 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_MONTH, CALENDAR_MDAY);
107 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_WEEK, CALENDAR_WDAY);
108 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_DAY_OF_YEAR, CALENDAR_YDAY);
109 	add_to_localtime_arr( dfo, return_value, parsed_calendar, UCAL_MONTH, CALENDAR_MON);
110 
111 	/* Is in DST? */
112 	isInDST = ucal_inDaylightTime(parsed_calendar	, &INTL_DATA_ERROR_CODE(dfo));
113 	INTL_METHOD_CHECK_STATUS( dfo, "Date parsing - localtime failed : while checking if currently in DST." );
114 	add_assoc_long( return_value, CALENDAR_ISDST,isInDST==1);
115 }
116 /* }}} */
117 
118 
119 /* {{{ Parse the string $value starting at parse_pos to a Unix timestamp -int */
PHP_FUNCTION(datefmt_parse)120 PHP_FUNCTION(datefmt_parse)
121 {
122 	char*           text_to_parse = NULL;
123 	size_t          text_len =0;
124 	zval*         	z_parse_pos = NULL;
125 	int32_t		parse_pos = -1;
126 
127 	DATE_FORMAT_METHOD_INIT_VARS;
128 
129 	/* Parse parameters. */
130 	if( zend_parse_method_parameters( ZEND_NUM_ARGS(), getThis(), "Os|z!",
131 		&object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
132 		RETURN_THROWS();
133 	}
134 
135 	/* Fetch the object. */
136 	DATE_FORMAT_METHOD_FETCH_OBJECT;
137 
138 	if (z_parse_pos) {
139 		zend_long long_parse_pos;
140 		ZVAL_DEREF(z_parse_pos);
141 		long_parse_pos = zval_get_long(z_parse_pos);
142 		if (ZEND_LONG_INT_OVFL(long_parse_pos)) {
143 			intl_error_set_code(NULL, U_ILLEGAL_ARGUMENT_ERROR);
144 			intl_error_set_custom_msg(NULL, "String index is out of valid range.", 0);
145 			RETURN_FALSE;
146 		}
147 		parse_pos = (int32_t)long_parse_pos;
148 		if((size_t)parse_pos > text_len) {
149 			RETURN_FALSE;
150 		}
151 	}
152 	internal_parse_to_timestamp( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value);
153 	if(z_parse_pos) {
154 		zval_ptr_dtor(z_parse_pos);
155 		ZVAL_LONG(z_parse_pos, parse_pos);
156 	}
157 }
158 /* }}} */
159 
160 /* {{{ Parse the string $value to a localtime array */
PHP_FUNCTION(datefmt_localtime)161 PHP_FUNCTION(datefmt_localtime)
162 {
163 	char*           text_to_parse = NULL;
164 	size_t          text_len =0;
165 	zval*         	z_parse_pos = NULL;
166 	int32_t		parse_pos = -1;
167 
168 	DATE_FORMAT_METHOD_INIT_VARS;
169 
170 	/* Parse parameters. */
171 	if( zend_parse_method_parameters( ZEND_NUM_ARGS(), getThis(), "Os|z!",
172 		&object, IntlDateFormatter_ce_ptr, &text_to_parse, &text_len, &z_parse_pos ) == FAILURE ){
173 		RETURN_THROWS();
174 	}
175 
176     /* Fetch the object. */
177 	DATE_FORMAT_METHOD_FETCH_OBJECT;
178 
179 	if (z_parse_pos) {
180 		zend_long long_parse_pos;
181 		ZVAL_DEREF(z_parse_pos);
182 		long_parse_pos = zval_get_long(z_parse_pos);
183 		if (ZEND_LONG_INT_OVFL(long_parse_pos)) {
184 			intl_error_set_code(NULL, U_ILLEGAL_ARGUMENT_ERROR);
185 			intl_error_set_custom_msg(NULL, "String index is out of valid range.", 0);
186 			RETURN_FALSE;
187 		}
188 		parse_pos = (int32_t)long_parse_pos;
189 		if((size_t)parse_pos > text_len) {
190 			RETURN_FALSE;
191 		}
192 	}
193 	internal_parse_to_localtime( dfo, text_to_parse, text_len, z_parse_pos?&parse_pos:NULL, return_value);
194 	if (z_parse_pos) {
195 		zval_ptr_dtor(z_parse_pos);
196 		ZVAL_LONG(z_parse_pos, parse_pos);
197 	}
198 }
199 /* }}} */
200