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
|
<?php
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* General Xml validator
*/
class CXmlValidatorGeneral {
/**
* @var array
*/
private $rules;
/**
* @var string
*/
private $format;
/**
* @param array $rules validation rules
* @param string $format format of import source
*/
public function __construct(array $rules, $format) {
$this->rules = $rules;
$this->format = $format;
}
/**
* Base validation function.
*
* @param mixed $data import data
* @param string $path XML path (for error reporting)
*
* @return array Validator does some manipulation for the incoming data. For example, converts empty tags to
* an array, if desired. Converted array is returned.
*/
public function validate($data, $path) {
$this->validateData($this->rules, $data, null, $path);
return $data;
}
/**
* Base validation function.
*
* @param array $rules validation rules
* @param mixed $data import data
* @param array $parent_data data's parent array (used for "ex_validate" callback functions)
* @param string $path XML path (for error reporting)
*
* @throw Exception if $data does not correspond to validation $rules
*/
public function validateData(array $rules, &$data, array $parent_data = null, $path) {
if (array_key_exists('preprocessor', $rules)) {
$data = call_user_func($rules['preprocessor'], $data);
}
if ($rules['type'] & XML_STRING) {
$this->validateString($data, $path);
}
elseif ($rules['type'] & XML_ARRAY) {
if ($data === '') {
$data = [];
}
$this->validateArray($data, $path);
// unexpected tag validation
if (!array_key_exists('check_unexpected', $rules) || $rules['check_unexpected']) {
foreach ($data as $tag => $value) {
if (!array_key_exists($tag, $rules['rules'])) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path,
_s('unexpected tag "%1$s"', $tag)
));
}
}
}
// validation of the values type
foreach ($rules['rules'] as $tag => $rule) {
if (array_key_exists($tag, $data)) {
$subpath = ($path === '/' ? $path : $path.'/').$tag;
$this->validateData($rule, $data[$tag], $data, $subpath);
}
elseif (($rule['type'] & XML_REQUIRED) || (array_key_exists('ex_required', $rule)
&& call_user_func($rule['ex_required'], $data))) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path,
_s('the tag "%1$s" is missing', $tag)
));
}
}
}
elseif ($rules['type'] & XML_INDEXED_ARRAY) {
if ($data === '') {
$data = [];
}
$this->validateArray($data, $path);
$index = 0;
$prefix = $rules['prefix'];
if (array_key_exists('extra', $rules)) {
if (!array_key_exists($rules['extra'], $data)
&& ($rules['rules'][$rules['extra']]['type'] & XML_REQUIRED)) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path,
_s('the tag "%1$s" is missing', $rules['extra'])
));
}
}
foreach ($data as $tag => &$value) {
if (array_key_exists('extra', $rules) && $rules['extra'] == $tag) {
$subpath = ($path === '/' ? $path : $path.'/').$tag;
$this->validateData($rules['rules'][$tag], $value, $data, $subpath);
continue;
}
switch ($this->format) {
case 'xml':
$is_valid_tag = ($tag === $prefix.($index == 0 ? '' : $index));
break;
case 'json':
$is_valid_tag = ctype_digit(strval($tag));
break;
default:
throw new Exception(_('Internal error.'));
}
if (!$is_valid_tag) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path, _s('unexpected tag "%1$s"', $tag)));
}
$index++;
$subpath = ($path === '/' ? $path : $path.'/').$prefix.'('.$index.')';
$this->validateData($rules['rules'][$prefix], $value, $data, $subpath);
}
unset($value);
// indexing the array numerically
$extra = null;
if (array_key_exists('extra', $rules)) {
if (array_key_exists($rules['extra'], $data)) {
$extra = $data[$rules['extra']];
unset($data[$rules['extra']]);
}
}
$data = array_values($data);
if ($extra !== null) {
$data[$rules['extra']] = $extra;
}
}
if (array_key_exists('ex_validate', $rules)) {
$data = call_user_func($rules['ex_validate'], $data, $parent_data, $path);
}
}
/**
* String validator.
*
* @param mixed $value value for validation
* @param string $path XML path (for error reporting)
*
* @throw Exception if this $value is not a character string
*/
private function validateString($value, $path) {
if (!is_string($value)) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path, _('a character string is expected')));
}
}
/**
* Array validator.
*
* @param mixed $value value for validation
* @param string $path XML path (for error reporting)
*
* @throw Exception if this $value is not an array
*/
private function validateArray($value, $path) {
if (!is_array($value)) {
throw new Exception(_s('Invalid tag "%1$s": %2$s.', $path, _('an array is expected')));
}
}
}
|
