line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
|
|
|
|
|
|
|
package Data::Validate; |
2
|
|
|
|
|
|
|
|
3
|
13
|
|
|
13
|
|
400212
|
use strict; |
|
13
|
|
|
|
|
33
|
|
|
13
|
|
|
|
|
656
|
|
4
|
13
|
|
|
13
|
|
75
|
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS); |
|
13
|
|
|
|
|
30
|
|
|
13
|
|
|
|
|
1306
|
|
5
|
|
|
|
|
|
|
|
6
|
|
|
|
|
|
|
require Exporter; |
7
|
13
|
|
|
13
|
|
13937
|
use AutoLoader 'AUTOLOAD'; |
|
13
|
|
|
|
|
36966
|
|
|
13
|
|
|
|
|
83
|
|
8
|
|
|
|
|
|
|
|
9
|
13
|
|
|
13
|
|
14281
|
use POSIX; |
|
13
|
|
|
|
|
136279
|
|
|
13
|
|
|
|
|
103
|
|
10
|
13
|
|
|
13
|
|
52012
|
use Scalar::Util qw(looks_like_number); |
|
13
|
|
|
|
|
28
|
|
|
13
|
|
|
|
|
1625
|
|
11
|
13
|
|
|
13
|
|
32063
|
use Math::BigInt; |
|
13
|
|
|
|
|
493421
|
|
|
13
|
|
|
|
|
89
|
|
12
|
13
|
|
|
13
|
|
293638
|
use Config; |
|
13
|
|
|
|
|
33
|
|
|
13
|
|
|
|
|
2040
|
|
13
|
|
|
|
|
|
|
|
14
|
|
|
|
|
|
|
@ISA = qw(Exporter); |
15
|
|
|
|
|
|
|
|
16
|
|
|
|
|
|
|
|
17
|
|
|
|
|
|
|
|
18
|
|
|
|
|
|
|
|
19
|
|
|
|
|
|
|
@EXPORT = qw(); |
20
|
|
|
|
|
|
|
|
21
|
|
|
|
|
|
|
@EXPORT_OK = qw( |
22
|
|
|
|
|
|
|
is_integer |
23
|
|
|
|
|
|
|
is_numeric |
24
|
|
|
|
|
|
|
is_hex |
25
|
|
|
|
|
|
|
is_oct |
26
|
|
|
|
|
|
|
is_between |
27
|
|
|
|
|
|
|
is_greater_than |
28
|
|
|
|
|
|
|
is_less_than |
29
|
|
|
|
|
|
|
is_equal_to |
30
|
|
|
|
|
|
|
is_even |
31
|
|
|
|
|
|
|
is_odd |
32
|
|
|
|
|
|
|
is_alphanumeric |
33
|
|
|
|
|
|
|
is_printable |
34
|
|
|
|
|
|
|
length_is_between |
35
|
|
|
|
|
|
|
); |
36
|
|
|
|
|
|
|
|
37
|
|
|
|
|
|
|
%EXPORT_TAGS = ( |
38
|
|
|
|
|
|
|
math => [qw(is_integer is_numeric is_hex is_oct is_between is_greater_than is_less_than is_equal_to is_even is_odd)], |
39
|
|
|
|
|
|
|
string => [qw(is_equal_to is_alphanumeric is_printable length_is_between)], |
40
|
|
|
|
|
|
|
); |
41
|
|
|
|
|
|
|
|
42
|
|
|
|
|
|
|
$VERSION = '0.09'; |
43
|
|
|
|
|
|
|
|
44
|
|
|
|
|
|
|
|
45
|
|
|
|
|
|
|
|
46
|
|
|
|
|
|
|
|
47
|
|
|
|
|
|
|
1; |
48
|
|
|
|
|
|
|
__END__ |
49
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
=head1 NAME |
51
|
|
|
|
|
|
|
|
52
|
|
|
|
|
|
|
Data::Validate - common data validation methods |
53
|
|
|
|
|
|
|
|
54
|
|
|
|
|
|
|
=head1 SYNOPSIS |
55
|
|
|
|
|
|
|
|
56
|
|
|
|
|
|
|
use Data::Validate qw(:math); |
57
|
|
|
|
|
|
|
|
58
|
|
|
|
|
|
|
if(defined(is_integer($suspect))){ |
59
|
|
|
|
|
|
|
print "Looks like an integer\n"; |
60
|
|
|
|
|
|
|
} |
61
|
|
|
|
|
|
|
|
62
|
|
|
|
|
|
|
my $name = is_alphanumeric($suspect); |
63
|
|
|
|
|
|
|
if(defined($name)){ |
64
|
|
|
|
|
|
|
print "$name is alphanumeric, and has been untainted\n"; |
65
|
|
|
|
|
|
|
} else { |
66
|
|
|
|
|
|
|
print "$suspect was not alphanumeric" |
67
|
|
|
|
|
|
|
} |
68
|
|
|
|
|
|
|
|
69
|
|
|
|
|
|
|
# or as an object |
70
|
|
|
|
|
|
|
my $v = Data::Validate->new(); |
71
|
|
|
|
|
|
|
|
72
|
|
|
|
|
|
|
die "'foo' is not an integer" unless defined($v->is_integer('foo')); |
73
|
|
|
|
|
|
|
|
74
|
|
|
|
|
|
|
=head1 DESCRIPTION |
75
|
|
|
|
|
|
|
|
76
|
|
|
|
|
|
|
This module collects common validation routines to make input validation, |
77
|
|
|
|
|
|
|
and untainting easier and more readable. Most of the functions are not much |
78
|
|
|
|
|
|
|
shorter than their direct perl equivalent (and are much longer in some cases), |
79
|
|
|
|
|
|
|
but their names make it clear what you're trying to test for. |
80
|
|
|
|
|
|
|
|
81
|
|
|
|
|
|
|
Almost all functions return an untainted value if the test passes, and undef if |
82
|
|
|
|
|
|
|
it fails. This means that you should always check for a defined status explicitly. |
83
|
|
|
|
|
|
|
Don't assume the return will be true. (e.g. is_integer(0)) |
84
|
|
|
|
|
|
|
|
85
|
|
|
|
|
|
|
The value to test is always the first (and often only) argument. |
86
|
|
|
|
|
|
|
|
87
|
|
|
|
|
|
|
=head1 FUNCTIONS |
88
|
|
|
|
|
|
|
|
89
|
|
|
|
|
|
|
=over 4 |
90
|
|
|
|
|
|
|
|
91
|
|
|
|
|
|
|
=cut |
92
|
|
|
|
|
|
|
|
93
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
94
|
|
|
|
|
|
|
|
95
|
|
|
|
|
|
|
=pod |
96
|
|
|
|
|
|
|
|
97
|
|
|
|
|
|
|
=item B<new> - constructor for OO usage |
98
|
|
|
|
|
|
|
|
99
|
|
|
|
|
|
|
new(); |
100
|
|
|
|
|
|
|
|
101
|
|
|
|
|
|
|
=over 4 |
102
|
|
|
|
|
|
|
|
103
|
|
|
|
|
|
|
=item I<Description> |
104
|
|
|
|
|
|
|
|
105
|
|
|
|
|
|
|
Returns a Data::Validator object. This lets you access all the validator function |
106
|
|
|
|
|
|
|
calls as methods without importing them into your namespace or using the clumsy |
107
|
|
|
|
|
|
|
Data::Validate::function_name() format. |
108
|
|
|
|
|
|
|
|
109
|
|
|
|
|
|
|
=item I<Arguments> |
110
|
|
|
|
|
|
|
|
111
|
|
|
|
|
|
|
None |
112
|
|
|
|
|
|
|
|
113
|
|
|
|
|
|
|
=item I<Returns> |
114
|
|
|
|
|
|
|
|
115
|
|
|
|
|
|
|
Returns a Data::Validate object |
116
|
|
|
|
|
|
|
|
117
|
|
|
|
|
|
|
=back |
118
|
|
|
|
|
|
|
|
119
|
|
|
|
|
|
|
=cut |
120
|
|
|
|
|
|
|
|
121
|
|
|
|
|
|
|
sub new{ |
122
|
13
|
|
|
13
|
1
|
431
|
my $class = shift; |
123
|
|
|
|
|
|
|
|
124
|
13
|
|
|
|
|
64
|
return bless {}, $class; |
125
|
|
|
|
|
|
|
} |
126
|
|
|
|
|
|
|
|
127
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
128
|
|
|
|
|
|
|
|
129
|
|
|
|
|
|
|
=pod |
130
|
|
|
|
|
|
|
|
131
|
|
|
|
|
|
|
=item B<is_integer> - is the value an integer? |
132
|
|
|
|
|
|
|
|
133
|
|
|
|
|
|
|
is_integer($value); |
134
|
|
|
|
|
|
|
|
135
|
|
|
|
|
|
|
=over 4 |
136
|
|
|
|
|
|
|
|
137
|
|
|
|
|
|
|
=item I<Description> |
138
|
|
|
|
|
|
|
|
139
|
|
|
|
|
|
|
Returns the untainted number if the test value is an integer, or can be cast to |
140
|
|
|
|
|
|
|
one without a loss of precision. (i.e. 1.0 is considered an integer, but 1.0001 is not.) |
141
|
|
|
|
|
|
|
|
142
|
|
|
|
|
|
|
=item I<Arguments> |
143
|
|
|
|
|
|
|
|
144
|
|
|
|
|
|
|
=over 4 |
145
|
|
|
|
|
|
|
|
146
|
|
|
|
|
|
|
=item $value |
147
|
|
|
|
|
|
|
|
148
|
|
|
|
|
|
|
The potential integer to test. |
149
|
|
|
|
|
|
|
|
150
|
|
|
|
|
|
|
=back |
151
|
|
|
|
|
|
|
|
152
|
|
|
|
|
|
|
=item I<Returns> |
153
|
|
|
|
|
|
|
|
154
|
|
|
|
|
|
|
Returns the untainted integer on success, undef on failure. Note that the return |
155
|
|
|
|
|
|
|
can be 0, so always check with defined() |
156
|
|
|
|
|
|
|
|
157
|
|
|
|
|
|
|
=item I<Notes, Exceptions, & Bugs> |
158
|
|
|
|
|
|
|
|
159
|
|
|
|
|
|
|
Number translation is done by POSIX casting tools (strtol). |
160
|
|
|
|
|
|
|
|
161
|
|
|
|
|
|
|
=back |
162
|
|
|
|
|
|
|
|
163
|
|
|
|
|
|
|
=cut |
164
|
|
|
|
|
|
|
|
165
|
|
|
|
|
|
|
sub is_integer{ |
166
|
32
|
100
|
|
39
|
1
|
202
|
my $self = shift if ref($_[0]); |
167
|
32
|
|
|
|
|
57
|
my $value = shift; |
168
|
|
|
|
|
|
|
|
169
|
31
|
100
|
|
|
|
81
|
return unless defined($value); |
170
|
29
|
100
|
|
|
|
569
|
return unless defined(is_numeric($value)); # for efficiency |
171
|
|
|
|
|
|
|
|
172
|
|
|
|
|
|
|
# see if we can parse it to an number without loss |
173
|
26
|
|
|
|
|
220
|
my($int, $leftover) = POSIX::strtod($value); |
174
|
|
|
|
|
|
|
|
175
|
26
|
100
|
|
|
|
77
|
return if $leftover; |
176
|
|
|
|
|
|
|
|
177
|
|
|
|
|
|
|
# we're having issues testing very large integers. Math::BigInt |
178
|
|
|
|
|
|
|
# can do this for us, but defeats the purpose of being |
179
|
|
|
|
|
|
|
# lightweight. So, we're going to try a huristic method to choose |
180
|
|
|
|
|
|
|
# how to test for integernesss |
181
|
20
|
100
|
66
|
|
|
3246
|
if(!$Config{uselongdouble} && length($int) > 10){ |
182
|
2
|
|
|
|
|
14
|
my $i = Math::BigInt->new($value); |
183
|
2
|
100
|
|
|
|
210
|
return unless $i->is_int(); |
184
|
|
|
|
|
|
|
|
185
|
|
|
|
|
|
|
# untaint |
186
|
2
|
|
|
|
|
70
|
($int) = $i->bstr() =~ /(.+)/; |
187
|
2
|
|
|
|
|
121
|
return $int; |
188
|
|
|
|
|
|
|
} |
189
|
|
|
|
|
|
|
|
190
|
|
|
|
|
|
|
|
191
|
|
|
|
|
|
|
# shorter integer must be identical to the raw cast |
192
|
18
|
50
|
|
|
|
10905
|
return unless (($int + 0) == ($value + 0)); |
193
|
|
|
|
|
|
|
|
194
|
|
|
|
|
|
|
# could still be a float at this point. |
195
|
18
|
100
|
|
|
|
121
|
return if $value =~ /[^0-9\-]/; |
196
|
|
|
|
|
|
|
|
197
|
|
|
|
|
|
|
# looks like it really is an integer. Untaint it and return |
198
|
15
|
|
|
|
|
59
|
($value) = $int =~ /([\d\-]+)/; |
199
|
|
|
|
|
|
|
|
200
|
15
|
|
|
|
|
341
|
return $value + 0; |
201
|
|
|
|
|
|
|
} |
202
|
|
|
|
|
|
|
|
203
|
|
|
|
|
|
|
|
204
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
205
|
|
|
|
|
|
|
|
206
|
|
|
|
|
|
|
=pod |
207
|
|
|
|
|
|
|
|
208
|
|
|
|
|
|
|
=item B<is_numeric> - is the value numeric? |
209
|
|
|
|
|
|
|
|
210
|
|
|
|
|
|
|
is_numeric($value); |
211
|
|
|
|
|
|
|
|
212
|
|
|
|
|
|
|
=over 4 |
213
|
|
|
|
|
|
|
|
214
|
|
|
|
|
|
|
=item I<Description> |
215
|
|
|
|
|
|
|
|
216
|
|
|
|
|
|
|
Returns the untainted number if the test value is numeric according to |
217
|
|
|
|
|
|
|
Perl's own internal rules. (actually a wrapper on Scalar::Util::looks_like_number) |
218
|
|
|
|
|
|
|
|
219
|
|
|
|
|
|
|
=item I<Arguments> |
220
|
|
|
|
|
|
|
|
221
|
|
|
|
|
|
|
=over 4 |
222
|
|
|
|
|
|
|
|
223
|
|
|
|
|
|
|
=item $value |
224
|
|
|
|
|
|
|
|
225
|
|
|
|
|
|
|
The potential number to test. |
226
|
|
|
|
|
|
|
|
227
|
|
|
|
|
|
|
=back |
228
|
|
|
|
|
|
|
|
229
|
|
|
|
|
|
|
=item I<Returns> |
230
|
|
|
|
|
|
|
|
231
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
232
|
|
|
|
|
|
|
can be 0, so always check with defined() |
233
|
|
|
|
|
|
|
|
234
|
|
|
|
|
|
|
=item I<Notes, Exceptions, & Bugs> |
235
|
|
|
|
|
|
|
|
236
|
|
|
|
|
|
|
Number translation is done by POSIX casting tools (strtol). |
237
|
|
|
|
|
|
|
|
238
|
|
|
|
|
|
|
=back |
239
|
|
|
|
|
|
|
|
240
|
|
|
|
|
|
|
=cut |
241
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
sub is_numeric{ |
243
|
82
|
100
|
|
82
|
1
|
708
|
my $self = shift if ref($_[0]); |
244
|
82
|
|
|
|
|
110
|
my $value = shift; |
245
|
|
|
|
|
|
|
|
246
|
82
|
50
|
|
|
|
242
|
return unless defined($value); |
247
|
|
|
|
|
|
|
|
248
|
82
|
100
|
|
|
|
571
|
return unless looks_like_number($value); |
249
|
|
|
|
|
|
|
|
250
|
|
|
|
|
|
|
# looks like it really is a number. Untaint it and return |
251
|
71
|
|
|
|
|
359
|
($value) = $value =~ /([\d\.\-+e]+)/; |
252
|
|
|
|
|
|
|
|
253
|
71
|
|
|
|
|
2274
|
return $value + 0; |
254
|
|
|
|
|
|
|
} |
255
|
|
|
|
|
|
|
|
256
|
|
|
|
|
|
|
|
257
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
258
|
|
|
|
|
|
|
|
259
|
|
|
|
|
|
|
=pod |
260
|
|
|
|
|
|
|
|
261
|
|
|
|
|
|
|
=item B<is_hex> - is the value a hex number? |
262
|
|
|
|
|
|
|
|
263
|
|
|
|
|
|
|
is_hex($value); |
264
|
|
|
|
|
|
|
|
265
|
|
|
|
|
|
|
=over 4 |
266
|
|
|
|
|
|
|
|
267
|
|
|
|
|
|
|
=item I<Description> |
268
|
|
|
|
|
|
|
|
269
|
|
|
|
|
|
|
Returns the untainted number if the test value is a hex number. |
270
|
|
|
|
|
|
|
|
271
|
|
|
|
|
|
|
=item I<Arguments> |
272
|
|
|
|
|
|
|
|
273
|
|
|
|
|
|
|
=over 4 |
274
|
|
|
|
|
|
|
|
275
|
|
|
|
|
|
|
=item $value |
276
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
The potential number to test. |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
=back |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
|
|
|
=item I<Returns> |
282
|
|
|
|
|
|
|
|
283
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
284
|
|
|
|
|
|
|
can be 0, so always check with defined() |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
=item I<Notes, Exceptions, & Bugs> |
287
|
|
|
|
|
|
|
|
288
|
|
|
|
|
|
|
None |
289
|
|
|
|
|
|
|
|
290
|
|
|
|
|
|
|
=back |
291
|
|
|
|
|
|
|
|
292
|
|
|
|
|
|
|
=cut |
293
|
|
|
|
|
|
|
|
294
|
|
|
|
|
|
|
sub is_hex { |
295
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
296
|
|
|
|
|
|
|
my $value = shift; |
297
|
|
|
|
|
|
|
|
298
|
|
|
|
|
|
|
return unless defined $value; |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
return if $value =~ /[^0-9a-f]/i; |
301
|
|
|
|
|
|
|
$value = lc($value); |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
my $int = hex($value); |
304
|
|
|
|
|
|
|
return unless (defined $int); |
305
|
|
|
|
|
|
|
my $hex = sprintf "%x", $int; |
306
|
|
|
|
|
|
|
return $hex if ($hex eq $value); |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
# handle zero stripping |
309
|
|
|
|
|
|
|
if (my ($z) = $value =~ /^(0+)/) { |
310
|
|
|
|
|
|
|
return "$z$hex" if ("$z$hex" eq $value); |
311
|
|
|
|
|
|
|
} |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
return; |
314
|
|
|
|
|
|
|
} |
315
|
|
|
|
|
|
|
|
316
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
=pod |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
=item B<is_oct> - is the value an octal number? |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
is_oct($value); |
323
|
|
|
|
|
|
|
|
324
|
|
|
|
|
|
|
=over 4 |
325
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
=item I<Description> |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
Returns the untainted number if the test value is a octal number. |
329
|
|
|
|
|
|
|
|
330
|
|
|
|
|
|
|
=item I<Arguments> |
331
|
|
|
|
|
|
|
|
332
|
|
|
|
|
|
|
=over 4 |
333
|
|
|
|
|
|
|
|
334
|
|
|
|
|
|
|
=item $value |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
The potential number to test. |
337
|
|
|
|
|
|
|
|
338
|
|
|
|
|
|
|
=back |
339
|
|
|
|
|
|
|
|
340
|
|
|
|
|
|
|
=item I<Returns> |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
343
|
|
|
|
|
|
|
can be 0, so always check with defined() |
344
|
|
|
|
|
|
|
|
345
|
|
|
|
|
|
|
=item I<Notes, Exceptions, & Bugs> |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
None |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
=back |
350
|
|
|
|
|
|
|
|
351
|
|
|
|
|
|
|
=cut |
352
|
|
|
|
|
|
|
|
353
|
|
|
|
|
|
|
sub is_oct { |
354
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
355
|
|
|
|
|
|
|
my $value = shift; |
356
|
|
|
|
|
|
|
|
357
|
|
|
|
|
|
|
return unless defined $value; |
358
|
|
|
|
|
|
|
|
359
|
|
|
|
|
|
|
return if $value =~ /[^0-7]/; |
360
|
|
|
|
|
|
|
|
361
|
|
|
|
|
|
|
my $int = oct($value); |
362
|
|
|
|
|
|
|
return unless (defined $int); |
363
|
|
|
|
|
|
|
my $oct = sprintf "%o", $int; |
364
|
|
|
|
|
|
|
return $oct if ($oct eq $value); |
365
|
|
|
|
|
|
|
|
366
|
|
|
|
|
|
|
# handle zero stripping |
367
|
|
|
|
|
|
|
if (my ($z) = $value =~ /^(0+)/) { |
368
|
|
|
|
|
|
|
return "$z$oct" if ("$z$oct" eq $value); |
369
|
|
|
|
|
|
|
} |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
return; |
372
|
|
|
|
|
|
|
} |
373
|
|
|
|
|
|
|
|
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
=pod |
378
|
|
|
|
|
|
|
|
379
|
|
|
|
|
|
|
=item B<is_between> - is the value between two numbers? |
380
|
|
|
|
|
|
|
|
381
|
|
|
|
|
|
|
is_between($value, $min, $max); |
382
|
|
|
|
|
|
|
|
383
|
|
|
|
|
|
|
=over 4 |
384
|
|
|
|
|
|
|
|
385
|
|
|
|
|
|
|
=item I<Description> |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
Returns the untainted number if the test value is numeric, and falls between |
388
|
|
|
|
|
|
|
$min and $max inclusive. Note that either $min or $max can be undef, which |
389
|
|
|
|
|
|
|
means 'unlimited'. i.e. is_between($val, 0, undef) would pass for any number |
390
|
|
|
|
|
|
|
zero or larger. |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
=item I<Arguments> |
393
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
=over 4 |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
=item $value |
397
|
|
|
|
|
|
|
|
398
|
|
|
|
|
|
|
The potential number to test. |
399
|
|
|
|
|
|
|
|
400
|
|
|
|
|
|
|
=item $min |
401
|
|
|
|
|
|
|
|
402
|
|
|
|
|
|
|
The minimum valid value. Unlimited if set to undef |
403
|
|
|
|
|
|
|
|
404
|
|
|
|
|
|
|
=item $max |
405
|
|
|
|
|
|
|
|
406
|
|
|
|
|
|
|
The maximum valid value. Unlimited if set to undef |
407
|
|
|
|
|
|
|
|
408
|
|
|
|
|
|
|
=back |
409
|
|
|
|
|
|
|
|
410
|
|
|
|
|
|
|
=item I<Returns> |
411
|
|
|
|
|
|
|
|
412
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
413
|
|
|
|
|
|
|
can be 0, so always check with defined() |
414
|
|
|
|
|
|
|
|
415
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
|
=back |
417
|
|
|
|
|
|
|
|
418
|
|
|
|
|
|
|
=cut |
419
|
|
|
|
|
|
|
|
420
|
|
|
|
|
|
|
sub is_between{ |
421
|
31
|
100
|
|
31
|
1
|
340
|
my $self = shift if ref($_[0]); |
422
|
31
|
|
|
|
|
117
|
my $value = shift; |
423
|
31
|
|
|
|
|
230
|
my $min = shift; |
424
|
30
|
|
|
|
|
359
|
my $max = shift; |
425
|
|
|
|
|
|
|
|
426
|
|
|
|
|
|
|
# must be a number |
427
|
27
|
|
|
|
|
287
|
my $untainted = is_numeric($value); |
428
|
25
|
100
|
|
|
|
76
|
return unless defined($untainted); |
429
|
|
|
|
|
|
|
|
430
|
|
|
|
|
|
|
# issues with very large numbers. Fall over to using |
431
|
|
|
|
|
|
|
# arbitrary precisions math. |
432
|
22
|
100
|
|
|
|
74
|
if(length($value) > 10){ |
433
|
|
|
|
|
|
|
|
434
|
15
|
|
|
|
|
138
|
my $i = Math::BigInt->new($value); |
435
|
|
|
|
|
|
|
|
436
|
|
|
|
|
|
|
# minimum bound |
437
|
8
|
100
|
|
|
|
229
|
if(defined($min)){ |
438
|
8
|
|
|
|
|
12
|
$min = Math::BigInt->new($min); |
439
|
8
|
100
|
|
|
|
263
|
return unless $i >= $min; |
440
|
|
|
|
|
|
|
} |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
# maximum bound |
443
|
16
|
100
|
|
|
|
269
|
if(defined($max)){ |
444
|
15
|
|
|
|
|
32
|
$max = Math::BigInt->new($max); |
445
|
15
|
100
|
|
|
|
335
|
return unless $i <= $max; |
446
|
|
|
|
|
|
|
} |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
# untaint |
449
|
11
|
|
|
|
|
278
|
($value) = $i->bstr() =~ /(.+)/; |
450
|
17
|
|
|
|
|
205
|
return $value; |
451
|
|
|
|
|
|
|
} |
452
|
|
|
|
|
|
|
|
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
# minimum bound |
455
|
23
|
100
|
|
|
|
62
|
if(defined($min)){ |
456
|
19
|
100
|
|
|
|
60
|
return unless $value >= $min; |
457
|
|
|
|
|
|
|
} |
458
|
|
|
|
|
|
|
|
459
|
|
|
|
|
|
|
# maximum bound |
460
|
24
|
100
|
|
|
|
228
|
if(defined($max)){ |
461
|
20
|
100
|
|
|
|
45
|
return unless $value <= $max; |
462
|
|
|
|
|
|
|
} |
463
|
|
|
|
|
|
|
|
464
|
19
|
|
|
|
|
52
|
return $untainted; |
465
|
|
|
|
|
|
|
} |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
|
468
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
469
|
|
|
|
|
|
|
|
470
|
|
|
|
|
|
|
=pod |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
=item B<is_greater_than> - is the value greater than a threshold? |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
is_greater_than($value, $threshold); |
475
|
|
|
|
|
|
|
|
476
|
|
|
|
|
|
|
=over 4 |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
=item I<Description> |
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
Returns the untainted number if the test value is numeric, and is greater than |
481
|
|
|
|
|
|
|
$threshold. (not inclusive) |
482
|
|
|
|
|
|
|
|
483
|
|
|
|
|
|
|
=item I<Arguments> |
484
|
|
|
|
|
|
|
|
485
|
|
|
|
|
|
|
=over 4 |
486
|
|
|
|
|
|
|
|
487
|
|
|
|
|
|
|
=item $value |
488
|
|
|
|
|
|
|
|
489
|
|
|
|
|
|
|
The potential number to test. |
490
|
|
|
|
|
|
|
|
491
|
|
|
|
|
|
|
=item $threshold |
492
|
|
|
|
|
|
|
|
493
|
|
|
|
|
|
|
The minimum value (non-inclusive) |
494
|
|
|
|
|
|
|
|
495
|
|
|
|
|
|
|
=back |
496
|
|
|
|
|
|
|
|
497
|
|
|
|
|
|
|
=item I<Returns> |
498
|
|
|
|
|
|
|
|
499
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
500
|
|
|
|
|
|
|
can be 0, so always check with defined() |
501
|
|
|
|
|
|
|
|
502
|
|
|
|
|
|
|
|
503
|
|
|
|
|
|
|
=back |
504
|
|
|
|
|
|
|
|
505
|
|
|
|
|
|
|
=cut |
506
|
|
|
|
|
|
|
|
507
|
|
|
|
|
|
|
sub is_greater_than{ |
508
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
509
|
|
|
|
|
|
|
my $value = shift; |
510
|
|
|
|
|
|
|
my $threshold = shift; |
511
|
|
|
|
|
|
|
|
512
|
|
|
|
|
|
|
# must be a number |
513
|
|
|
|
|
|
|
my $untainted = is_numeric($value); |
514
|
|
|
|
|
|
|
return unless defined($untainted); |
515
|
|
|
|
|
|
|
|
516
|
|
|
|
|
|
|
# threshold must be defined |
517
|
|
|
|
|
|
|
return unless defined $threshold; |
518
|
|
|
|
|
|
|
|
519
|
|
|
|
|
|
|
return unless $value > $threshold; |
520
|
|
|
|
|
|
|
|
521
|
|
|
|
|
|
|
return $untainted; |
522
|
|
|
|
|
|
|
} |
523
|
|
|
|
|
|
|
|
524
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
525
|
|
|
|
|
|
|
|
526
|
|
|
|
|
|
|
=pod |
527
|
|
|
|
|
|
|
|
528
|
|
|
|
|
|
|
=item B<is_less_than> - is the value less than a threshold? |
529
|
|
|
|
|
|
|
|
530
|
|
|
|
|
|
|
is_less_than($value, $threshold); |
531
|
|
|
|
|
|
|
|
532
|
|
|
|
|
|
|
=over 4 |
533
|
|
|
|
|
|
|
|
534
|
|
|
|
|
|
|
=item I<Description> |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
Returns the untainted number if the test value is numeric, and is less than |
537
|
|
|
|
|
|
|
$threshold. (not inclusive) |
538
|
|
|
|
|
|
|
|
539
|
|
|
|
|
|
|
=item I<Arguments> |
540
|
|
|
|
|
|
|
|
541
|
|
|
|
|
|
|
=over 4 |
542
|
|
|
|
|
|
|
|
543
|
|
|
|
|
|
|
=item $value |
544
|
|
|
|
|
|
|
|
545
|
|
|
|
|
|
|
The potential number to test. |
546
|
|
|
|
|
|
|
|
547
|
|
|
|
|
|
|
=item $threshold |
548
|
|
|
|
|
|
|
|
549
|
|
|
|
|
|
|
The maximum value (non-inclusive) |
550
|
|
|
|
|
|
|
|
551
|
|
|
|
|
|
|
=back |
552
|
|
|
|
|
|
|
|
553
|
|
|
|
|
|
|
=item I<Returns> |
554
|
|
|
|
|
|
|
|
555
|
|
|
|
|
|
|
Returns the untainted number on success, undef on failure. Note that the return |
556
|
|
|
|
|
|
|
can be 0, so always check with defined() |
557
|
|
|
|
|
|
|
|
558
|
|
|
|
|
|
|
|
559
|
|
|
|
|
|
|
=back |
560
|
|
|
|
|
|
|
|
561
|
|
|
|
|
|
|
=cut |
562
|
|
|
|
|
|
|
|
563
|
|
|
|
|
|
|
sub is_less_than{ |
564
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
565
|
|
|
|
|
|
|
my $value = shift; |
566
|
|
|
|
|
|
|
my $threshold = shift; |
567
|
|
|
|
|
|
|
|
568
|
|
|
|
|
|
|
# must be a number |
569
|
|
|
|
|
|
|
my $untainted = is_numeric($value); |
570
|
|
|
|
|
|
|
return unless defined($untainted); |
571
|
|
|
|
|
|
|
|
572
|
|
|
|
|
|
|
# threshold must be defined |
573
|
|
|
|
|
|
|
return unless defined $threshold; |
574
|
|
|
|
|
|
|
|
575
|
|
|
|
|
|
|
return unless $value < $threshold; |
576
|
|
|
|
|
|
|
|
577
|
|
|
|
|
|
|
return $untainted; |
578
|
|
|
|
|
|
|
} |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
|
581
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
582
|
|
|
|
|
|
|
|
583
|
|
|
|
|
|
|
=pod |
584
|
|
|
|
|
|
|
|
585
|
|
|
|
|
|
|
=item B<is_equal_to> - do a string/number neutral == |
586
|
|
|
|
|
|
|
|
587
|
|
|
|
|
|
|
is_equal_to($value, $target); |
588
|
|
|
|
|
|
|
|
589
|
|
|
|
|
|
|
=over 4 |
590
|
|
|
|
|
|
|
|
591
|
|
|
|
|
|
|
=item I<Description> |
592
|
|
|
|
|
|
|
|
593
|
|
|
|
|
|
|
Returns the target if $value is equal to it. Does a math comparison if |
594
|
|
|
|
|
|
|
both $value and $target are numeric, or a string comparison otherwise. |
595
|
|
|
|
|
|
|
Both the $value and $target must be defined to get a true return. (i.e. |
596
|
|
|
|
|
|
|
undef != undef) |
597
|
|
|
|
|
|
|
|
598
|
|
|
|
|
|
|
=item I<Arguments> |
599
|
|
|
|
|
|
|
|
600
|
|
|
|
|
|
|
=over 4 |
601
|
|
|
|
|
|
|
|
602
|
|
|
|
|
|
|
=item $value |
603
|
|
|
|
|
|
|
|
604
|
|
|
|
|
|
|
The value to test. |
605
|
|
|
|
|
|
|
|
606
|
|
|
|
|
|
|
=item $target |
607
|
|
|
|
|
|
|
|
608
|
|
|
|
|
|
|
The value to test against |
609
|
|
|
|
|
|
|
|
610
|
|
|
|
|
|
|
=back |
611
|
|
|
|
|
|
|
|
612
|
|
|
|
|
|
|
=item I<Returns> |
613
|
|
|
|
|
|
|
|
614
|
|
|
|
|
|
|
Unlike most validator routines, this one does not necessarily untaint its return value, |
615
|
|
|
|
|
|
|
it just returns $target. This has the effect of untainting if the target is a constant or |
616
|
|
|
|
|
|
|
other clean value. (i.e. is_equal_to($bar, 'foo')). Note that the return |
617
|
|
|
|
|
|
|
can be 0, so always check with defined() |
618
|
|
|
|
|
|
|
|
619
|
|
|
|
|
|
|
|
620
|
|
|
|
|
|
|
=back |
621
|
|
|
|
|
|
|
|
622
|
|
|
|
|
|
|
=cut |
623
|
|
|
|
|
|
|
|
624
|
|
|
|
|
|
|
sub is_equal_to{ |
625
|
22
|
100
|
|
22
|
1
|
340
|
my $self = shift if ref($_[0]); |
626
|
20
|
|
|
|
|
50
|
my $value = shift; |
627
|
20
|
|
|
|
|
73
|
my $target = shift; |
628
|
|
|
|
|
|
|
|
629
|
|
|
|
|
|
|
# value and target must be defined |
630
|
12
|
100
|
|
|
|
34
|
return unless defined $value; |
631
|
11
|
100
|
|
|
|
29
|
return unless defined $target; |
632
|
|
|
|
|
|
|
|
633
|
18
|
100
|
66
|
|
|
331
|
if(defined(is_numeric($value)) && defined(is_numeric($target))){ |
634
|
16
|
100
|
|
|
|
43
|
return $target if $value == $target; |
635
|
|
|
|
|
|
|
} else { |
636
|
|
|
|
|
|
|
# string comparison |
637
|
12
|
100
|
|
|
|
29
|
return $target if $value eq $target; |
638
|
|
|
|
|
|
|
} |
639
|
|
|
|
|
|
|
|
640
|
14
|
|
|
|
|
32
|
return; |
641
|
|
|
|
|
|
|
} |
642
|
|
|
|
|
|
|
|
643
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
644
|
|
|
|
|
|
|
|
645
|
|
|
|
|
|
|
=pod |
646
|
|
|
|
|
|
|
|
647
|
|
|
|
|
|
|
=item B<is_even> - is a number even? |
648
|
|
|
|
|
|
|
|
649
|
|
|
|
|
|
|
is_even($value); |
650
|
|
|
|
|
|
|
|
651
|
|
|
|
|
|
|
=over 4 |
652
|
|
|
|
|
|
|
|
653
|
|
|
|
|
|
|
=item I<Description> |
654
|
|
|
|
|
|
|
|
655
|
|
|
|
|
|
|
Returns the untainted $value if it's numeric, an integer, and even. |
656
|
|
|
|
|
|
|
|
657
|
|
|
|
|
|
|
=item I<Arguments> |
658
|
|
|
|
|
|
|
|
659
|
|
|
|
|
|
|
=over 4 |
660
|
|
|
|
|
|
|
|
661
|
|
|
|
|
|
|
=item $value |
662
|
|
|
|
|
|
|
|
663
|
|
|
|
|
|
|
The value to test. |
664
|
|
|
|
|
|
|
|
665
|
|
|
|
|
|
|
=back |
666
|
|
|
|
|
|
|
|
667
|
|
|
|
|
|
|
=item I<Returns> |
668
|
|
|
|
|
|
|
|
669
|
|
|
|
|
|
|
Returns $value (untainted). Note that the return can be 0, so always |
670
|
|
|
|
|
|
|
check with defined(). |
671
|
|
|
|
|
|
|
|
672
|
|
|
|
|
|
|
|
673
|
|
|
|
|
|
|
=back |
674
|
|
|
|
|
|
|
|
675
|
|
|
|
|
|
|
=cut |
676
|
|
|
|
|
|
|
|
677
|
|
|
|
|
|
|
sub is_even{ |
678
|
|
|
|
10
|
1
|
|
my $self = shift if ref($_[0]); |
679
|
|
|
|
|
|
|
my $value = shift; |
680
|
|
|
|
|
|
|
|
681
|
|
|
|
|
|
|
return unless defined(is_numeric($value)); |
682
|
|
|
|
|
|
|
my $untainted = is_integer($value); |
683
|
|
|
|
|
|
|
return unless defined($untainted); |
684
|
|
|
|
|
|
|
|
685
|
|
|
|
|
|
|
return $untainted unless $value % 2; |
686
|
|
|
|
|
|
|
|
687
|
|
|
|
|
|
|
return; |
688
|
|
|
|
|
|
|
} |
689
|
|
|
|
|
|
|
|
690
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
691
|
|
|
|
|
|
|
|
692
|
|
|
|
|
|
|
=pod |
693
|
|
|
|
|
|
|
|
694
|
|
|
|
|
|
|
=item B<is_odd> - is a number odd? |
695
|
|
|
|
|
|
|
|
696
|
|
|
|
|
|
|
is_odd($value); |
697
|
|
|
|
|
|
|
|
698
|
|
|
|
|
|
|
=over 4 |
699
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
=item I<Description> |
701
|
|
|
|
|
|
|
|
702
|
|
|
|
|
|
|
Returns the untainted $value if it's numeric, an integer, and odd. |
703
|
|
|
|
|
|
|
|
704
|
|
|
|
|
|
|
=item I<Arguments> |
705
|
|
|
|
|
|
|
|
706
|
|
|
|
|
|
|
=over 4 |
707
|
|
|
|
|
|
|
|
708
|
|
|
|
|
|
|
=item $value |
709
|
|
|
|
|
|
|
|
710
|
|
|
|
|
|
|
The value to test. |
711
|
|
|
|
|
|
|
|
712
|
|
|
|
|
|
|
=back |
713
|
|
|
|
|
|
|
|
714
|
|
|
|
|
|
|
=item I<Returns> |
715
|
|
|
|
|
|
|
|
716
|
|
|
|
|
|
|
Returns $value (untainted). Note that the return can be 0, so always |
717
|
|
|
|
|
|
|
check with defined(). |
718
|
|
|
|
|
|
|
|
719
|
|
|
|
|
|
|
=back |
720
|
|
|
|
|
|
|
|
721
|
|
|
|
|
|
|
=cut |
722
|
|
|
|
|
|
|
|
723
|
|
|
|
|
|
|
sub is_odd{ |
724
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
725
|
|
|
|
|
|
|
my $value = shift; |
726
|
|
|
|
|
|
|
|
727
|
|
|
|
|
|
|
return unless defined(is_numeric($value)); |
728
|
|
|
|
|
|
|
my $untainted = is_integer($value); |
729
|
|
|
|
|
|
|
return unless defined($untainted); |
730
|
|
|
|
|
|
|
|
731
|
|
|
|
|
|
|
return $untainted if $value % 2; |
732
|
|
|
|
|
|
|
|
733
|
|
|
|
|
|
|
return; |
734
|
|
|
|
|
|
|
} |
735
|
|
|
|
|
|
|
|
736
|
|
|
|
|
|
|
|
737
|
|
|
|
|
|
|
|
738
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
739
|
|
|
|
|
|
|
|
740
|
|
|
|
|
|
|
=pod |
741
|
|
|
|
|
|
|
|
742
|
|
|
|
|
|
|
=item B<is_alphanumeric> - does it only contain letters and numbers? |
743
|
|
|
|
|
|
|
|
744
|
|
|
|
|
|
|
is_alphanumeric($value); |
745
|
|
|
|
|
|
|
|
746
|
|
|
|
|
|
|
=over 4 |
747
|
|
|
|
|
|
|
|
748
|
|
|
|
|
|
|
=item I<Description> |
749
|
|
|
|
|
|
|
|
750
|
|
|
|
|
|
|
Returns the untainted $value if it is defined and only contains letters (upper |
751
|
|
|
|
|
|
|
or lower case) and numbers. Also allows an empty string - ''. |
752
|
|
|
|
|
|
|
|
753
|
|
|
|
|
|
|
=item I<Arguments> |
754
|
|
|
|
|
|
|
|
755
|
|
|
|
|
|
|
=over 4 |
756
|
|
|
|
|
|
|
|
757
|
|
|
|
|
|
|
=item $value |
758
|
|
|
|
|
|
|
|
759
|
|
|
|
|
|
|
The value to test. |
760
|
|
|
|
|
|
|
|
761
|
|
|
|
|
|
|
=back |
762
|
|
|
|
|
|
|
|
763
|
|
|
|
|
|
|
=item I<Returns> |
764
|
|
|
|
|
|
|
|
765
|
|
|
|
|
|
|
Returns $value (untainted). Note that the return can be 0, so always |
766
|
|
|
|
|
|
|
check with defined(). |
767
|
|
|
|
|
|
|
|
768
|
|
|
|
|
|
|
=back |
769
|
|
|
|
|
|
|
|
770
|
|
|
|
|
|
|
=cut |
771
|
|
|
|
|
|
|
|
772
|
|
|
|
|
|
|
sub is_alphanumeric{ |
773
|
10
|
100
|
|
10
|
1
|
99
|
my $self = shift if ref($_[0]); |
774
|
10
|
|
|
|
|
14
|
my $value = shift; |
775
|
|
|
|
|
|
|
|
776
|
10
|
50
|
|
|
|
24
|
return unless defined($value); |
777
|
10
|
100
|
|
|
|
31
|
return '' if $value eq ''; # allow for empty string |
778
|
|
|
|
|
|
|
|
779
|
8
|
|
|
|
|
23
|
my($untainted) = $value =~ /([a-z0-9]+)/i; |
780
|
|
|
|
|
|
|
|
781
|
8
|
100
|
|
|
|
31
|
return unless defined($untainted); |
782
|
4
|
100
|
|
|
|
12
|
return unless $untainted eq $value; |
783
|
|
|
|
|
|
|
|
784
|
3
|
|
|
|
|
16
|
return $untainted; |
785
|
|
|
|
|
|
|
|
786
|
|
|
|
|
|
|
} |
787
|
|
|
|
|
|
|
|
788
|
|
|
|
|
|
|
|
789
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
790
|
|
|
|
|
|
|
|
791
|
|
|
|
|
|
|
=pod |
792
|
|
|
|
|
|
|
|
793
|
|
|
|
|
|
|
=item B<is_printable> - does it only contain printable characters? |
794
|
|
|
|
|
|
|
|
795
|
|
|
|
|
|
|
is_alphanumeric($value); |
796
|
|
|
|
|
|
|
|
797
|
|
|
|
|
|
|
=over 4 |
798
|
|
|
|
|
|
|
|
799
|
|
|
|
|
|
|
=item I<Description> |
800
|
|
|
|
|
|
|
|
801
|
|
|
|
|
|
|
Returns the untainted $value if it is defined and only contains printable characters |
802
|
|
|
|
|
|
|
as defined by the composite POSIX character class [[:print:][:space:]]. Also allows an empty string - ''. |
803
|
|
|
|
|
|
|
|
804
|
|
|
|
|
|
|
=item I<Arguments> |
805
|
|
|
|
|
|
|
|
806
|
|
|
|
|
|
|
=over 4 |
807
|
|
|
|
|
|
|
|
808
|
|
|
|
|
|
|
=item $value |
809
|
|
|
|
|
|
|
|
810
|
|
|
|
|
|
|
The value to test. |
811
|
|
|
|
|
|
|
|
812
|
|
|
|
|
|
|
=back |
813
|
|
|
|
|
|
|
|
814
|
|
|
|
|
|
|
=item I<Returns> |
815
|
|
|
|
|
|
|
|
816
|
|
|
|
|
|
|
Returns $value (untainted). Note that the return can be 0, so always |
817
|
|
|
|
|
|
|
check with defined(). |
818
|
|
|
|
|
|
|
|
819
|
|
|
|
|
|
|
=back |
820
|
|
|
|
|
|
|
|
821
|
|
|
|
|
|
|
=cut |
822
|
|
|
|
|
|
|
|
823
|
|
|
|
|
|
|
sub is_printable{ |
824
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
825
|
|
|
|
|
|
|
my $value = shift; |
826
|
|
|
|
|
|
|
|
827
|
|
|
|
|
|
|
return unless defined($value); |
828
|
|
|
|
|
|
|
return '' if $value eq ''; # allow for empty string |
829
|
|
|
|
|
|
|
|
830
|
|
|
|
|
|
|
my($untainted) = $value =~ /([[:print:][:space:]]+)/i; |
831
|
|
|
|
|
|
|
|
832
|
|
|
|
|
|
|
return unless defined($untainted); |
833
|
|
|
|
|
|
|
return unless $untainted eq $value; |
834
|
|
|
|
|
|
|
|
835
|
|
|
|
|
|
|
return $untainted; |
836
|
|
|
|
|
|
|
|
837
|
|
|
|
|
|
|
} |
838
|
|
|
|
|
|
|
|
839
|
|
|
|
|
|
|
|
840
|
|
|
|
|
|
|
# ------------------------------------------------------------------------------- |
841
|
|
|
|
|
|
|
|
842
|
|
|
|
|
|
|
=pod |
843
|
|
|
|
|
|
|
|
844
|
|
|
|
|
|
|
=item B<length_is_between> - is the string length between two limits? |
845
|
|
|
|
|
|
|
|
846
|
|
|
|
|
|
|
length_is_between($value, $min, $max); |
847
|
|
|
|
|
|
|
|
848
|
|
|
|
|
|
|
=over 4 |
849
|
|
|
|
|
|
|
|
850
|
|
|
|
|
|
|
=item I<Description> |
851
|
|
|
|
|
|
|
|
852
|
|
|
|
|
|
|
Returns $value if it is defined and its length |
853
|
|
|
|
|
|
|
is between $min and $max inclusive. Note that this function does not |
854
|
|
|
|
|
|
|
untaint the value. |
855
|
|
|
|
|
|
|
|
856
|
|
|
|
|
|
|
If either $min or $max are undefined they are treated as no-limit. |
857
|
|
|
|
|
|
|
|
858
|
|
|
|
|
|
|
=item I<Arguments> |
859
|
|
|
|
|
|
|
|
860
|
|
|
|
|
|
|
=over 4 |
861
|
|
|
|
|
|
|
|
862
|
|
|
|
|
|
|
=item $value |
863
|
|
|
|
|
|
|
|
864
|
|
|
|
|
|
|
The value to test. |
865
|
|
|
|
|
|
|
|
866
|
|
|
|
|
|
|
=item $min |
867
|
|
|
|
|
|
|
|
868
|
|
|
|
|
|
|
The minimum length of the string (inclusive). |
869
|
|
|
|
|
|
|
|
870
|
|
|
|
|
|
|
=item $max |
871
|
|
|
|
|
|
|
|
872
|
|
|
|
|
|
|
The maximum length of the string (inclusive). |
873
|
|
|
|
|
|
|
|
874
|
|
|
|
|
|
|
=back |
875
|
|
|
|
|
|
|
|
876
|
|
|
|
|
|
|
=item I<Returns> |
877
|
|
|
|
|
|
|
|
878
|
|
|
|
|
|
|
Returns $value. Note that the return can be 0, so always check with |
879
|
|
|
|
|
|
|
defined(). The value is not automatically untainted. |
880
|
|
|
|
|
|
|
|
881
|
|
|
|
|
|
|
=back |
882
|
|
|
|
|
|
|
|
883
|
|
|
|
|
|
|
=cut |
884
|
|
|
|
|
|
|
|
885
|
|
|
|
|
|
|
sub length_is_between{ |
886
|
|
|
|
|
|
|
my $self = shift if ref($_[0]); |
887
|
|
|
|
|
|
|
my $value = shift; |
888
|
|
|
|
|
|
|
my $min = shift; |
889
|
|
|
|
|
|
|
my $max = shift; |
890
|
|
|
|
|
|
|
|
891
|
|
|
|
|
|
|
return unless defined($value); |
892
|
|
|
|
|
|
|
|
893
|
|
|
|
|
|
|
if(defined($min)){ |
894
|
|
|
|
|
|
|
return unless length($value) >= $min; |
895
|
|
|
|
|
|
|
} |
896
|
|
|
|
|
|
|
|
897
|
|
|
|
|
|
|
if(defined($max)){ |
898
|
|
|
|
|
|
|
return unless length($value) <= $max; |
899
|
|
|
|
|
|
|
} |
900
|
|
|
|
|
|
|
|
901
|
|
|
|
|
|
|
return $value; |
902
|
|
|
|
|
|
|
|
903
|
|
|
|
|
|
|
} |
904
|
|
|
|
|
|
|
|
905
|
|
|
|
|
|
|
|
906
|
|
|
|
|
|
|
=pod |
907
|
|
|
|
|
|
|
|
908
|
|
|
|
|
|
|
=back |
909
|
|
|
|
|
|
|
|
910
|
|
|
|
|
|
|
=head1 AUTHOR |
911
|
|
|
|
|
|
|
|
912
|
|
|
|
|
|
|
Richard Sonnen <F<sonnen@richardsonnen.com>>. |
913
|
|
|
|
|
|
|
|
914
|
|
|
|
|
|
|
=head1 COPYRIGHT |
915
|
|
|
|
|
|
|
|
916
|
|
|
|
|
|
|
Copyright (c) 2004 Richard Sonnen. All rights reserved. |
917
|
|
|
|
|
|
|
|
918
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify |
919
|
|
|
|
|
|
|
it under the same terms as Perl itself. |
920
|
|
|
|
|
|
|
|
921
|
|
|
|
|
|
|
=cut |
922
|
|
|
|
|
|
|
|