1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
namespace Mbright\Validation\Rule\Validate\MySql; |
4
|
|
|
|
5
|
|
|
use Mbright\Validation\Rule\Validate\ValidateRuleInterface; |
6
|
|
|
|
7
|
|
|
/** |
8
|
|
|
* Validates that data can be inserted into one of the following column types: |
9
|
|
|
* - Date |
10
|
|
|
*/ |
11
|
|
|
class Date implements ValidateRuleInterface |
12
|
|
|
{ |
13
|
|
|
/** |
14
|
|
|
* Returns a bool indicating if the value can be safely stored in a MySql Date column. |
15
|
|
|
* |
16
|
|
|
* @param object $subject |
17
|
|
|
* @param string $field |
18
|
|
|
* |
19
|
|
|
* @return bool |
20
|
|
|
*/ |
21
|
36 |
|
public function __invoke($subject, string $field): bool |
22
|
|
|
{ |
23
|
36 |
|
$value = (string) $subject->$field; |
24
|
36 |
|
$dateParts = $this->extractDateParts($value); |
25
|
|
|
|
26
|
36 |
|
return !is_null($dateParts) && checkdate($dateParts->month, $dateParts->day, $dateParts->year); |
27
|
|
|
} |
28
|
|
|
|
29
|
|
|
/** |
30
|
|
|
* Extract date parts from the given string. |
31
|
|
|
* |
32
|
|
|
* Will return a stdClass with 3 properties: year, month, day. Each property defaults to null. If the string cannot |
33
|
|
|
* be parsed, return null. |
34
|
|
|
* |
35
|
|
|
* @param string $dateString |
36
|
|
|
* |
37
|
|
|
* @return null|\stdClass |
38
|
|
|
*/ |
39
|
36 |
|
protected function extractDateParts(string $dateString): ?\stdClass |
40
|
|
|
{ |
41
|
|
|
$extractedParts = (object) [ |
42
|
36 |
|
'year' => null, |
43
|
|
|
'month' => null, |
44
|
|
|
'day' => null |
45
|
|
|
]; |
46
|
|
|
|
47
|
36 |
|
$sanitizedDateString = $this->sanitizeDateString($dateString); |
48
|
|
|
|
49
|
36 |
|
if (is_null($sanitizedDateString)) { |
50
|
9 |
|
return null; |
51
|
|
|
} |
52
|
|
|
|
53
|
|
|
// extract the individual date parts for checkdate |
54
|
27 |
|
$extractedParts->year = substr($sanitizedDateString, 0, 4); |
55
|
27 |
|
$extractedParts->month = substr($sanitizedDateString, 4, 2); |
56
|
27 |
|
$extractedParts->day = substr($sanitizedDateString, 6, 2); |
57
|
|
|
|
58
|
27 |
|
return $extractedParts; |
59
|
|
|
} |
60
|
|
|
|
61
|
|
|
/** |
62
|
|
|
* Sanitizes the given dateString to YYYYMMDD. |
63
|
|
|
* |
64
|
|
|
* Returns null if the string cannot be sanitized. |
65
|
|
|
* |
66
|
|
|
* @param string $dateString |
67
|
|
|
* |
68
|
|
|
* @return null|string |
69
|
|
|
*/ |
70
|
36 |
|
protected function sanitizeDateString(string $dateString): ?string |
71
|
|
|
{ |
72
|
36 |
|
$sanitizedString = $this->handleDelimiters($dateString); |
73
|
36 |
|
if ($sanitizedString) { |
|
|
|
|
74
|
33 |
|
$sanitizedString = $this->normalizeYear($sanitizedString); |
75
|
|
|
// More than 8 characters here means we don't have the format YYYYMMDD |
76
|
33 |
|
if (strlen($sanitizedString) !== 8) { |
77
|
6 |
|
return null; |
78
|
|
|
} |
79
|
|
|
} |
80
|
|
|
|
81
|
30 |
|
return $sanitizedString; |
82
|
|
|
} |
83
|
|
|
|
84
|
|
|
/** |
85
|
|
|
* Strips delimiters from the given date string and returns the sanitized string. |
86
|
|
|
* |
87
|
|
|
* The returned string will be either |
88
|
|
|
* |
89
|
|
|
* @param string $dateString |
90
|
|
|
* |
91
|
|
|
* @return null|string |
92
|
|
|
*/ |
93
|
36 |
|
protected function handleDelimiters(string $dateString): ?string |
94
|
|
|
{ |
95
|
|
|
// Grab everything that isn't an int, these things must be delimiters |
96
|
36 |
|
$delimiters = []; |
97
|
36 |
|
preg_match_all('/\D/', $dateString, $delimiters); |
98
|
|
|
|
99
|
36 |
|
if (count($delimiters[0]) > 1) { |
100
|
|
|
// ensure that all delimiters are valid delimiters accepted by mysql |
101
|
15 |
|
$delimiterString = implode('', $delimiters[0]); |
102
|
15 |
|
if (preg_match('/[^[:punct:]]/', $delimiterString) > 0) { |
103
|
3 |
|
return null; |
104
|
|
|
} |
105
|
|
|
|
106
|
|
|
// sanitize valid punctuation characters that are being used as delimiters |
107
|
12 |
|
$delimiterString = preg_quote($delimiterString, '/'); |
108
|
|
|
// Remove delimiters to make parsing date segments easier |
109
|
12 |
|
$dateString = preg_replace("/[$delimiterString]/", '', $dateString); |
110
|
|
|
} |
111
|
|
|
|
112
|
33 |
|
return $dateString; |
113
|
|
|
} |
114
|
|
|
|
115
|
|
|
/** |
116
|
|
|
* Converts YYMMDD to YYYYMMDD. |
117
|
|
|
* |
118
|
|
|
* @param string $dateString |
119
|
|
|
* |
120
|
|
|
* @return null|string |
121
|
|
|
*/ |
122
|
33 |
|
public function normalizeYear(string $dateString): ?string |
123
|
|
|
{ |
124
|
|
|
// if we have a two digit year, convert it to a 4 digit year for the sake of comparison |
125
|
33 |
|
if (strlen($dateString) === 6) { |
126
|
9 |
|
$twoDigitYear = substr($dateString, 0, 2); |
127
|
9 |
|
$yearPrefix = 0 < $twoDigitYear && $twoDigitYear < 69 ? '20' : '19'; |
128
|
9 |
|
$dateString = $yearPrefix . $dateString; |
129
|
|
|
} |
130
|
|
|
|
131
|
33 |
|
return $dateString; |
132
|
|
|
} |
133
|
|
|
} |
134
|
|
|
|
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: