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<?php
class AbuseFilterVariableHolder {
public $mVars = [];
public static $varBlacklist = [ 'context' ];
public function __construct() {
// Backwards-compatibility (unused now)
$this->setVar( 'minor_edit', false );
}
/**
* @param string $variable
* @param mixed $datum
*/
function setVar( $variable, $datum ) {
$variable = strtolower( $variable );
if ( !( $datum instanceof AFPData || $datum instanceof AFComputedVariable ) ) {
$datum = AFPData::newFromPHPVar( $datum );
}
$this->mVars[$variable] = $datum;
}
/**
* @param string $variable
* @param string $method
* @param array $parameters
*/
function setLazyLoadVar( $variable, $method, $parameters ) {
$placeholder = new AFComputedVariable( $method, $parameters );
$this->setVar( $variable, $placeholder );
}
/**
* Get a variable from the current object
*
* @param string $variable
* @return AFPData
*/
function getVar( $variable ) {
$variable = strtolower( $variable );
if ( isset( $this->mVars[$variable] ) ) {
if ( $this->mVars[$variable] instanceof AFComputedVariable ) {
$value = $this->mVars[$variable]->compute( $this );
$this->setVar( $variable, $value );
return $value;
} elseif ( $this->mVars[$variable] instanceof AFPData ) {
return $this->mVars[$variable];
}
}
return new AFPData();
}
/**
* @return AbuseFilterVariableHolder
*/
public static function merge() {
$newHolder = new AbuseFilterVariableHolder;
call_user_func_array( [ $newHolder, "addHolders" ], func_get_args() );
return $newHolder;
}
/**
* @param self $addHolder
* @throws MWException
* @deprecated use addHolders() instead
*/
public function addHolder( $addHolder ) {
$this->addHolders( $addHolder );
}
/**
* Merge any number of holders given as arguments into this holder.
*
* @throws MWException
*/
public function addHolders() {
$holders = func_get_args();
foreach ( $holders as $addHolder ) {
if ( !is_object( $addHolder ) ) {
throw new MWException( 'Invalid argument to AbuseFilterVariableHolder::addHolders' );
}
$this->mVars = array_merge( $this->mVars, $addHolder->mVars );
}
}
function __wakeup() {
// Reset the context.
$this->setVar( 'context', 'stored' );
}
/**
* Export all variables stored in this object as string
*
* @return string[]
*/
function exportAllVars() {
$exported = [];
foreach ( array_keys( $this->mVars ) as $varName ) {
if ( !in_array( $varName, self::$varBlacklist ) ) {
$exported[$varName] = $this->getVar( $varName )->toString();
}
}
return $exported;
}
/**
* Export all non-lazy variables stored in this object as string
*
* @return string[]
*/
function exportNonLazyVars() {
$exported = [];
foreach ( $this->mVars as $varName => $data ) {
if (
!( $data instanceof AFComputedVariable )
&& !in_array( $varName, self::$varBlacklist )
) {
$exported[$varName] = $this->getVar( $varName )->toString();
}
}
return $exported;
}
/**
* Dump all variables stored in this object in their native types.
* If you want a not yet set variable to be included in the results you can
* either set $compute to an array with the name of the variable or set
* $compute to true to compute all not yet set variables.
*
* @param array|bool $compute Variables we should copute if not yet set
* @param bool $includeUserVars Include user set variables
* @return array
*/
public function dumpAllVars( $compute = [], $includeUserVars = false ) {
$allVarNames = array_keys( $this->mVars );
$exported = [];
$coreVariables = [];
if ( !$includeUserVars ) {
// Compile a list of all variables set by the extension to be able
// to filter user set ones by name
global $wgRestrictionTypes;
$coreVariables = AbuseFilter::getBuilderValues();
$coreVariables = array_keys( $coreVariables['vars'] );
// Title vars can have several prefixes
$prefixes = [ 'ARTICLE', 'MOVED_FROM', 'MOVED_TO' ];
$titleVars = [
'_ARTICLEID',
'_NAMESPACE',
'_TEXT',
'_PREFIXEDTEXT',
'_recent_contributors'
];
foreach ( $wgRestrictionTypes as $action ) {
$titleVars[] = "_restrictions_$action";
}
foreach ( $titleVars as $var ) {
foreach ( $prefixes as $prefix ) {
$coreVariables[] = $prefix . $var;
}
}
$coreVariables = array_map( 'strtolower', $coreVariables );
}
foreach ( $allVarNames as $varName ) {
if (
( $includeUserVars || in_array( strtolower( $varName ), $coreVariables ) ) &&
// Only include variables set in the extension in case $includeUserVars is false
!in_array( $varName, self::$varBlacklist ) &&
( $compute === true ||
( is_array( $compute ) && in_array( $varName, $compute ) ) ||
$this->mVars[$varName] instanceof AFPData
)
) {
$exported[$varName] = $this->getVar( $varName )->toNative();
}
}
return $exported;
}
/**
* @param string $var
* @return bool
*/
function varIsSet( $var ) {
return array_key_exists( $var, $this->mVars );
}
/**
* Compute all vars which need DB access. Useful for vars which are going to be saved
* cross-wiki or used for offline analysis.
*/
function computeDBVars() {
static $dbTypes = [
'links-from-wikitext-or-database',
'load-recent-authors',
'get-page-restrictions',
'simple-user-accessor',
'user-age',
'user-groups',
'user-rights',
'revision-text-by-id',
'revision-text-by-timestamp'
];
foreach ( $this->mVars as $name => $value ) {
if ( $value instanceof AFComputedVariable &&
in_array( $value->mMethod, $dbTypes )
) {
$value = $value->compute( $this );
$this->setVar( $name, $value );
}
}
}
}
|
