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1<?php
2
3declare( strict_types = 1 );
4
5namespace EntitySchema\Presentation;
6
7use EntitySchema\Domain\Model\EntitySchemaId;
8use InvalidArgumentException;
9use MediaWiki\Config\Config;
10use MediaWiki\Config\ConfigException;
11use MediaWiki\Context\RequestContext;
12use MediaWiki\Languages\LanguageNameUtils;
13use MediaWiki\MediaWikiServices;
14use MediaWiki\Message\Message;
15use MediaWiki\Title\Title;
16use MessageLocalizer;
17
18/**
19 * @license GPL-2.0-or-later
20 */
21class InputValidator {
22
23    private MessageLocalizer $msgLocalizer;
24    private Config $configService;
25    private LanguageNameUtils $languageNameUtils;
26
27    public static function newFromGlobalState(): self {
28        return new self(
29            RequestContext::getMain(),
30            MediaWikiServices::getInstance()->getMainConfig(),
31            MediaWikiServices::getInstance()->getLanguageNameUtils()
32        );
33    }
34
35    public function __construct(
36        MessageLocalizer $msgLocalizer,
37        Config $config,
38        LanguageNameUtils $languageNameUtils
39    ) {
40        $this->msgLocalizer = $msgLocalizer;
41        $this->configService = $config;
42        $this->languageNameUtils = $languageNameUtils;
43    }
44
45    /**
46     * @param string $id
47     *
48     * @return true|Message returns true on success and Message on failure
49     */
50    public function validateIDExists( string $id ) {
51        try {
52            $entitySchemaId = new EntitySchemaId( $id );
53        } catch ( InvalidArgumentException ) {
54            return $this->msgLocalizer->msg( 'entityschema-error-invalid-id' );
55        }
56        $title = Title::makeTitle( NS_ENTITYSCHEMA_JSON, $entitySchemaId->getId() );
57        if ( !$title->exists() ) {
58            return $this->msgLocalizer->msg( 'entityschema-error-schemadeleted' );
59        }
60
61        return true;
62    }
63
64    /**
65     * @param string $langCode
66     *
67     * @return true|Message returns true on success and Message on failure
68     */
69    public function validateLangCodeIsSupported( string $langCode ) {
70        if ( !$this->languageNameUtils->isSupportedLanguage( $langCode ) ) {
71            return $this->msgLocalizer->msg( 'entityschema-error-unsupported-langcode' );
72        }
73        return true;
74    }
75
76    /**
77     * @param string $schemaText
78     *
79     * @return true|Message returns true on success and Message on failure
80     * @throws ConfigException
81     */
82    public function validateSchemaTextLength( string $schemaText ) {
83        $maxLengthBytes = $this->configService->get( 'EntitySchemaSchemaTextMaxSizeBytes' );
84        $schemaTextLengthBytes = strlen( $schemaText );
85        if ( $schemaTextLengthBytes > $maxLengthBytes ) {
86            return $this->msgLocalizer->msg( 'entityschema-error-schematext-too-long' )
87                ->numParams( $maxLengthBytes, $schemaTextLengthBytes );
88        }
89
90        return true;
91    }
92
93    /**
94     * @return true|Message returns true on success and Message on failure
95     */
96    public function validateAliasesLength( string $aliasesInput ) {
97        $maxLengthChars = $this->configService->get( 'EntitySchemaNameBadgeMaxSizeChars' );
98        $cleanAliasesString = implode( '', array_map( 'trim', explode( '|', $aliasesInput ) ) );
99        $aliasesLengthChars = mb_strlen( $cleanAliasesString );
100        if ( $aliasesLengthChars > $maxLengthChars ) {
101            return $this->msgLocalizer->msg( 'entityschema-error-input-too-long' )
102                ->numParams( $maxLengthChars, $aliasesLengthChars );
103        }
104
105        return true;
106    }
107
108    /**
109     * @return true|Message returns true on success and Message on failure
110     */
111    public function validateStringInputLength( string $labelOrDescriptionInput ) {
112        $maxLengthChars = $this->configService->get( 'EntitySchemaNameBadgeMaxSizeChars' );
113        $numInputChars = mb_strlen( $labelOrDescriptionInput );
114        if ( $numInputChars > $maxLengthChars ) {
115            return $this->msgLocalizer->msg( 'entityschema-error-input-too-long' )
116                ->numParams( $maxLengthChars, $numInputChars );
117        }
118
119        return true;
120    }
121
122}