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: Scott MacVicar <scottmac@php.net>                           |
12    +----------------------------------------------------------------------+
13  */
14 
15 #ifdef HAVE_CONFIG_H
16 #include "config.h"
17 #endif
18 
19 #include "php_intl.h"
20 #include "spoofchecker_class.h"
21 
22 /* {{{ Checks if a given text contains any suspicious characters */
PHP_METHOD(Spoofchecker,isSuspicious)23 PHP_METHOD(Spoofchecker, isSuspicious)
24 {
25 	int ret;
26 	char *text;
27 	size_t text_len;
28 	zval *error_code = NULL;
29 	SPOOFCHECKER_METHOD_INIT_VARS;
30 
31 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "s|z", &text, &text_len, &error_code)) {
32 		RETURN_THROWS();
33 	}
34 
35 	SPOOFCHECKER_METHOD_FETCH_OBJECT;
36 
37 	ret = uspoof_checkUTF8(co->uspoof, text, text_len, NULL, SPOOFCHECKER_ERROR_CODE_P(co));
38 
39 	if (U_FAILURE(SPOOFCHECKER_ERROR_CODE(co))) {
40 		php_error_docref(NULL, E_WARNING, "(%d) %s", SPOOFCHECKER_ERROR_CODE(co), u_errorName(SPOOFCHECKER_ERROR_CODE(co)));
41 		RETURN_TRUE;
42 	}
43 
44 	if (error_code) {
45 		zval_ptr_dtor(error_code);
46 		ZVAL_LONG(error_code, ret);
47 	}
48 	RETVAL_BOOL(ret != 0);
49 }
50 /* }}} */
51 
52 /* {{{ Checks if a given text contains any confusable characters */
PHP_METHOD(Spoofchecker,areConfusable)53 PHP_METHOD(Spoofchecker, areConfusable)
54 {
55 	int ret;
56 	char *s1, *s2;
57 	size_t s1_len, s2_len;
58 	zval *error_code = NULL;
59 	SPOOFCHECKER_METHOD_INIT_VARS;
60 
61 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "ss|z", &s1, &s1_len,
62 										 &s2, &s2_len, &error_code)) {
63 		RETURN_THROWS();
64 	}
65 
66 	SPOOFCHECKER_METHOD_FETCH_OBJECT;
67 	if(s1_len > INT32_MAX || s2_len > INT32_MAX) {
68 		SPOOFCHECKER_ERROR_CODE(co) = U_BUFFER_OVERFLOW_ERROR;
69 	} else {
70 		ret = uspoof_areConfusableUTF8(co->uspoof, s1, (int32_t)s1_len, s2, (int32_t)s2_len, SPOOFCHECKER_ERROR_CODE_P(co));
71 	}
72 	if (U_FAILURE(SPOOFCHECKER_ERROR_CODE(co))) {
73 		php_error_docref(NULL, E_WARNING, "(%d) %s", SPOOFCHECKER_ERROR_CODE(co), u_errorName(SPOOFCHECKER_ERROR_CODE(co)));
74 		RETURN_TRUE;
75 	}
76 
77 	if (error_code) {
78 		zval_ptr_dtor(error_code);
79 		ZVAL_LONG(error_code, ret);
80 	}
81 	RETVAL_BOOL(ret != 0);
82 }
83 /* }}} */
84 
85 /* {{{ Locales to use when running checks */
PHP_METHOD(Spoofchecker,setAllowedLocales)86 PHP_METHOD(Spoofchecker, setAllowedLocales)
87 {
88 	char *locales;
89 	size_t locales_len;
90 	SPOOFCHECKER_METHOD_INIT_VARS;
91 
92 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "s", &locales, &locales_len)) {
93 		RETURN_THROWS();
94 	}
95 
96 	SPOOFCHECKER_METHOD_FETCH_OBJECT;
97 
98 	uspoof_setAllowedLocales(co->uspoof, locales, SPOOFCHECKER_ERROR_CODE_P(co));
99 
100 	if (U_FAILURE(SPOOFCHECKER_ERROR_CODE(co))) {
101 		php_error_docref(NULL, E_WARNING, "(%d) %s", SPOOFCHECKER_ERROR_CODE(co), u_errorName(SPOOFCHECKER_ERROR_CODE(co)));
102 		return;
103 	}
104 }
105 /* }}} */
106 
107 /* {{{ Set the checks to run */
PHP_METHOD(Spoofchecker,setChecks)108 PHP_METHOD(Spoofchecker, setChecks)
109 {
110 	zend_long checks;
111 	SPOOFCHECKER_METHOD_INIT_VARS;
112 
113 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "l", &checks)) {
114 		RETURN_THROWS();
115 	}
116 
117 	SPOOFCHECKER_METHOD_FETCH_OBJECT;
118 
119 	uspoof_setChecks(co->uspoof, checks, SPOOFCHECKER_ERROR_CODE_P(co));
120 
121 	if (U_FAILURE(SPOOFCHECKER_ERROR_CODE(co))) {
122 		php_error_docref(NULL, E_WARNING, "(%d) %s", SPOOFCHECKER_ERROR_CODE(co), u_errorName(SPOOFCHECKER_ERROR_CODE(co)));
123 	}
124 }
125 /* }}} */
126 
127 #if U_ICU_VERSION_MAJOR_NUM >= 58
128 /* TODO Document this method on PHP.net */
129 /* {{{ Set the loosest restriction level allowed for strings. */
PHP_METHOD(Spoofchecker,setRestrictionLevel)130 PHP_METHOD(Spoofchecker, setRestrictionLevel)
131 {
132 	zend_long level;
133 	SPOOFCHECKER_METHOD_INIT_VARS;
134 
135 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "l", &level)) {
136 		RETURN_THROWS();
137 	}
138 
139 	SPOOFCHECKER_METHOD_FETCH_OBJECT;
140 
141 	if (USPOOF_ASCII != level &&
142 			USPOOF_SINGLE_SCRIPT_RESTRICTIVE != level &&
143 			USPOOF_HIGHLY_RESTRICTIVE != level &&
144 			USPOOF_MODERATELY_RESTRICTIVE != level &&
145 			USPOOF_MINIMALLY_RESTRICTIVE != level &&
146 			USPOOF_UNRESTRICTIVE != level) {
147 		zend_argument_value_error(1, "must be one of Spoofchecker::ASCII, Spoofchecker::SINGLE_SCRIPT_RESTRICTIVE, "
148 			"Spoofchecker::SINGLE_HIGHLY_RESTRICTIVE, Spoofchecker::SINGLE_MODERATELY_RESTRICTIVE, "
149 			"Spoofchecker::SINGLE_MINIMALLY_RESTRICTIVE, or Spoofchecker::UNRESTRICTIVE");
150 		RETURN_THROWS();
151 	}
152 
153 	uspoof_setRestrictionLevel(co->uspoof, (URestrictionLevel)level);
154 }
155 /* }}} */
156 #endif
157