mediawiki-extensions-Gadgets/includes/Content/GadgetDefinitionValidator.php

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<?php
namespace MediaWiki\Extension\Gadgets\Content;
use MediaWiki\Status\Status;
/**
* Class responsible for validating Gadget definition contents
*
* @todo maybe this should use a formal JSON schema validator or something
*/
class GadgetDefinitionValidator {
/**
* @var array Validation metadata.
* 'foo.bar.baz' => [ 'type check callback',
* 'type name' [, 'member type check callback', 'member type name'] ]
*/
protected static $propertyValidation = [
'settings' => [ 'is_array', 'array' ],
'settings.rights' => [ 'is_array', 'array' , 'is_string', 'string' ],
'settings.default' => [ 'is_bool', 'boolean' ],
'settings.hidden' => [ 'is_bool', 'boolean' ],
'settings.package' => [ 'is_bool', 'boolean' ],
'settings.skins' => [ [ __CLASS__, 'isArrayOrTrue' ], 'array or true', 'is_string', 'string' ],
'settings.actions' => [ 'is_array', 'array', 'is_string', 'string' ],
'settings.namespaces' => [ 'is_array', 'array', 'is_numeric', 'number' ],
'settings.contentModels' => [ 'is_array', 'array', 'is_string', 'string' ],
'settings.category' => [ 'is_string', 'string' ],
'settings.supportsUrlLoad' => [ 'is_bool', 'boolean' ],
'settings.requiresES6' => [ 'is_bool', 'boolean' ],
'module' => [ 'is_array', 'array' ],
'module.pages' => [ 'is_array', 'array', 'is_string', 'string' ],
'module.dependencies' => [ 'is_array', 'array', 'is_string', 'string' ],
'module.peers' => [ 'is_array', 'array', 'is_string', 'string' ],
'module.messages' => [ 'is_array', 'array', 'is_string', 'string' ],
'module.type' => [ 'is_string', 'string' ],
];
/**
* @param mixed $value
* @return bool
*/
public static function isArrayOrTrue( $value ) {
return is_array( $value ) || $value === true;
}
/**
* Check the validity of the given properties array
* @param array $properties Return value of FormatJson::decode( $blob, true )
* @param bool $tolerateMissing If true, don't complain about missing keys
* @return Status object with error message if applicable
*/
public function validate( array $properties, $tolerateMissing = false ) {
foreach ( self::$propertyValidation as $property => $validation ) {
$path = explode( '.', $property );
$val = $properties;
// Walk down and verify that the path from the root to this property exists
foreach ( $path as $p ) {
if ( !array_key_exists( $p, $val ) ) {
if ( $tolerateMissing ) {
// Skip validation of this property altogether
continue 2;
}
return Status::newFatal( 'gadgets-validate-notset', $property );
}
$val = $val[$p];
}
// Do the actual validation of this property
$func = $validation[0];
if ( !call_user_func( $func, $val ) ) {
return Status::newFatal(
'gadgets-validate-wrongtype',
$property,
$validation[1],
gettype( $val )
);
}
if ( isset( $validation[2] ) && isset( $validation[3] ) && is_array( $val ) ) {
// Descend into the array and check the type of each element
$func = $validation[2];
foreach ( $val as $i => $v ) {
if ( !call_user_func( $func, $v ) ) {
return Status::newFatal(
'gadgets-validate-wrongtype',
"{$property}[{$i}]",
$validation[3],
gettype( $v )
);
}
}
}
}
return Status::newGood();
}
}