|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
/** |
|
4
|
|
|
* Caridea |
|
5
|
|
|
* |
|
6
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
|
7
|
|
|
* use this file except in compliance with the License. You may obtain a copy of |
|
8
|
|
|
* the License at |
|
9
|
|
|
* |
|
10
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0 |
|
11
|
|
|
* |
|
12
|
|
|
* Unless required by applicable law or agreed to in writing, software |
|
13
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
|
14
|
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
|
15
|
|
|
* License for the specific language governing permissions and limitations under |
|
16
|
|
|
* the License. |
|
17
|
|
|
* |
|
18
|
|
|
* @copyright 2015-2016 LibreWorks contributors |
|
19
|
|
|
* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
|
20
|
|
|
*/ |
|
21
|
|
|
namespace Caridea\Acl; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* Delegates ACL retrieval to Loaders. |
|
25
|
|
|
* |
|
26
|
|
|
* @copyright 2015-2016 LibreWorks contributors |
|
27
|
|
|
* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
|
28
|
|
|
*/ |
|
29
|
|
|
class DelegateStrategy implements MultiStrategy |
|
30
|
|
|
{ |
|
31
|
|
|
/** |
|
32
|
|
|
* @var SplFixedArray<\Caridea\Acl\Loader> The loaders to consult |
|
33
|
|
|
*/ |
|
34
|
|
|
private $loaders; |
|
35
|
|
|
|
|
36
|
|
|
/** |
|
37
|
|
|
* Creates a new DelegateStrategy. |
|
38
|
|
|
* |
|
39
|
|
|
* @param \Caridea\Acl\Loader[] $loaders An array of Loaders to use |
|
40
|
|
|
* @throws \InvalidArgumentException if an entry in `loaders` isn't a `Loader` |
|
41
|
|
|
*/ |
|
42
|
6 |
|
public function __construct(array $loaders) |
|
43
|
|
|
{ |
|
44
|
6 |
|
foreach ($loaders as $loader) { |
|
45
|
5 |
|
if (!($loader instanceof Loader)) { |
|
46
|
5 |
|
throw new \InvalidArgumentException("Only instances of Loader are permitted in the loaders argument"); |
|
47
|
|
|
} |
|
48
|
|
|
} |
|
49
|
|
|
// HHVM appears to use max() inside of FixedArray which bails when empty |
|
50
|
5 |
|
$this->loaders = empty($loaders) ? |
|
51
|
5 |
|
new \SplFixedArray() : \SplFixedArray::fromArray($loaders); |
|
52
|
5 |
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* Loads the ACL for a Target. |
|
56
|
|
|
* |
|
57
|
|
|
* @param \Caridea\Acl\Target $target The `Target` whose ACL will be loaded |
|
58
|
|
|
* @param \Caridea\Acl\Subject[] $subjects An array of `Subject`s |
|
59
|
|
|
* @param \Caridea\Acl\Service $service The calling service (to load parent ACLs) |
|
60
|
|
|
* @return \Caridea\Acl\Acl The loaded ACL |
|
61
|
|
|
* @throws \Caridea\Acl\Exception\Unloadable If the target provided is invalid |
|
62
|
|
|
*/ |
|
63
|
2 |
|
public function load(Target $target, array $subjects, Service $service): Acl |
|
64
|
|
|
{ |
|
65
|
2 |
|
foreach ($this->loaders as $loader) { |
|
66
|
2 |
|
if ($loader->supports($target)) { |
|
67
|
2 |
|
return $loader->load($target, $subjects, $service); |
|
68
|
|
|
} |
|
69
|
|
|
} |
|
70
|
1 |
|
return new DenyAcl($target); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* Loads the ACLs for several Targets. |
|
75
|
|
|
* |
|
76
|
|
|
* @since 2.1.0 |
|
77
|
|
|
* @param \Caridea\Acl\Target[] $targets The `Target` whose ACL will be loaded |
|
78
|
|
|
* @param \Caridea\Acl\Subject[] $subjects An array of `Subject`s |
|
79
|
|
|
* @param \Caridea\Acl\Service $service The ACL service (to load parent ACLs) |
|
80
|
|
|
* @return array<string,\Caridea\Acl\Acl> The loaded ACLs |
|
81
|
|
|
* @throws \Caridea\Acl\Exception\Unloadable If the target provided is invalid |
|
82
|
|
|
* @throws \InvalidArgumentException If the `subjects` argument contains invalid values |
|
83
|
|
|
*/ |
|
84
|
3 |
|
public function loadAll(array $targets, array $subjects, Service $service): array |
|
85
|
|
|
{ |
|
86
|
3 |
|
$byType = []; |
|
87
|
3 |
|
foreach ($targets as $target) { |
|
88
|
3 |
|
if (!($target instanceof Target)) { |
|
89
|
1 |
|
throw new \InvalidArgumentException("Only instances of Target are permitted in the targets argument"); |
|
90
|
|
|
} |
|
91
|
2 |
|
$type = $target->getType(); |
|
92
|
2 |
|
if (!isset($byType[$type])) { |
|
93
|
2 |
|
$byType[$type] = []; |
|
94
|
|
|
} |
|
95
|
2 |
|
$byType[$type][] = $target; |
|
96
|
|
|
} |
|
97
|
2 |
|
$acls = []; |
|
98
|
2 |
|
foreach ($byType as $type => $ttargets) { |
|
99
|
2 |
|
foreach ($this->loaders as $loader) { |
|
100
|
2 |
|
if ($loader->supports($target)) { |
|
|
|
|
|
|
101
|
2 |
|
if ($loader instanceof MultiStrategy) { |
|
102
|
1 |
|
$acls = array_merge($acls, $loader->loadAll($ttargets, $subjects, $service)); |
|
103
|
|
|
} else { |
|
104
|
1 |
|
foreach ($ttargets as $target) { |
|
105
|
1 |
|
$acls[(string)$target] = $loader->load($target, $subjects, $service); |
|
106
|
|
|
} |
|
107
|
|
|
} |
|
108
|
2 |
|
break; |
|
109
|
|
|
} |
|
110
|
|
|
} |
|
111
|
|
|
} |
|
112
|
2 |
|
return $acls; |
|
113
|
|
|
} |
|
114
|
|
|
} |
|
115
|
|
|
|
libreworks /
caridea-acl
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: