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1 | <?php |
2 | |
3 | /** |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License as published by |
6 | * the Free Software Foundation; either version 2 of the License, or |
7 | * (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License along |
15 | * with this program; if not, write to the Free Software Foundation, Inc., |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | * http://www.gnu.org/copyleft/gpl.html |
18 | * |
19 | * @file |
20 | */ |
21 | |
22 | namespace MediaWiki\DB; |
23 | |
24 | use JsonSchema\Validator; |
25 | use Seld\JsonLint\DuplicateKeyException; |
26 | use Seld\JsonLint\JsonParser; |
27 | use Seld\JsonLint\ParsingException; |
28 | use function class_exists; |
29 | use function file_get_contents; |
30 | use function is_array; |
31 | use function is_object; |
32 | |
33 | /** |
34 | * Validate abstract schema json files against their JSON schema. |
35 | * |
36 | * This is used for static validation from the command-line via |
37 | * generateSchemaSql.php, generateSchemaChangeSql, and the PHPUnit structure test suite |
38 | * (AbstractSchemaValidationTest). |
39 | * |
40 | * The files are normally read by the generateSchemaSql.php and generateSchemaSqlChange.php maintenance scripts. |
41 | * |
42 | * @since 1.38 |
43 | */ |
44 | class AbstractSchemaValidator { |
45 | /** |
46 | * @var callable(string):void |
47 | */ |
48 | private $missingDepCallback; |
49 | |
50 | /** |
51 | * @param callable(string):void $missingDepCallback |
52 | */ |
53 | public function __construct( callable $missingDepCallback ) { |
54 | $this->missingDepCallback = $missingDepCallback; |
55 | } |
56 | |
57 | /** |
58 | * @codeCoverageIgnore |
59 | * @return bool |
60 | */ |
61 | public function checkDependencies(): bool { |
62 | if ( !class_exists( Validator::class ) ) { |
63 | ( $this->missingDepCallback )( |
64 | 'The JsonSchema library cannot be found, please install it through composer.' |
65 | ); |
66 | return false; |
67 | } |
68 | |
69 | if ( !class_exists( JsonParser::class ) ) { |
70 | ( $this->missingDepCallback )( |
71 | 'The JSON lint library cannot be found, please install it through composer.' |
72 | ); |
73 | return false; |
74 | } |
75 | |
76 | return true; |
77 | } |
78 | |
79 | /** |
80 | * @param string $path file to validate |
81 | * @return bool true if passes validation |
82 | * @throws AbstractSchemaValidationError on any failure |
83 | */ |
84 | public function validate( string $path ): bool { |
85 | $contents = file_get_contents( $path ); |
86 | $jsonParser = new JsonParser(); |
87 | try { |
88 | $data = $jsonParser->parse( $contents, JsonParser::DETECT_KEY_CONFLICTS ); |
89 | } catch ( DuplicateKeyException $e ) { |
90 | throw new AbstractSchemaValidationError( $e->getMessage(), $e->getCode(), $e ); |
91 | } catch ( ParsingException $e ) { |
92 | throw new AbstractSchemaValidationError( "$path is not valid JSON", $e->getCode(), $e ); |
93 | } |
94 | |
95 | // Regular schema's are arrays, schema changes are objects. |
96 | if ( is_array( $data ) ) { |
97 | $schemaPath = __DIR__ . '/../../docs/abstract-schema.schema.json'; |
98 | } elseif ( is_object( $data ) ) { |
99 | $schemaPath = __DIR__ . '/../../docs/abstract-schema-changes.schema.json'; |
100 | } else { |
101 | throw new AbstractSchemaValidationError( "$path is not a supported JSON object" ); |
102 | } |
103 | |
104 | $validator = new Validator; |
105 | $validator->check( $data, (object)[ '$ref' => 'file://' . $schemaPath ] ); |
106 | if ( $validator->isValid() ) { |
107 | // All good. |
108 | return true; |
109 | } |
110 | |
111 | $out = "$path did not pass validation.\n"; |
112 | foreach ( $validator->getErrors() as $error ) { |
113 | $out .= "[{$error['property']}] {$error['message']}\n"; |
114 | } |
115 | throw new AbstractSchemaValidationError( $out ); |
116 | } |
117 | } |