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Followup to r46951 and friends: add $wgExportMaxLinkDepth, defaulting to 0.

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If set to non-zero, this specifies the maximum link depth that will be followed for exports. Remember "6 degrees of separation", this could easily kill on a site like Wikipedia. :)
This commit is contained in:
Brion Vibber 2009-02-18 00:48:39 +00:00
parent 3d3c0b90e3
commit 062158904b
2 changed files with 29 additions and 3 deletions
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9
includes/DefaultSettings.php
View file

@ -2269,6 +2269,15 @@ $wgExportMaxHistory = 0;
$wgExportAllowListContributors = false ;
/**
* If non-zero, Special:Export accepts a "pagelink-depth" parameter
* up to this specified level, which will cause it to include all
* pages linked to from the pages you specify. Since this number
* can become *insanely large* and could easily break your wiki,
* it's disabled by default for now.
*/
$wgExportMaxLinkDepth = 0;
/**
* Edits matching these regular expressions in body text or edit summary

23
includes/specials/SpecialExport.php
View file

@ -32,7 +32,7 @@ class SpecialExport extends SpecialPage {
public function execute( $par ) {
global $wgOut, $wgRequest, $wgSitename, $wgExportAllowListContributors;
global $wgExportAllowHistory, $wgExportMaxHistory;
global $wgExportAllowHistory, $wgExportMaxHistory, $wgExportMaxLinkDepth;
$this->setHeaders();
$this->outputHeader();
@ -42,7 +42,8 @@ class SpecialExport extends SpecialPage {
$this->doExport = false;
$this->templates = $wgRequest->getCheck( 'templates' );
$this->images = $wgRequest->getCheck( 'images' ); // Doesn't do anything yet
$this->pageLinkDepth = $wgRequest->getIntOrNull( 'pagelink-depth' );
$this->pageLinkDepth = $this->validateLinkDepth(
$wgRequest->getIntOrNull( 'pagelink-depth' ) );
if ( $wgRequest->getCheck( 'addcat' ) ) {
$page = $wgRequest->getText( 'pages' );
@ -144,7 +145,9 @@ class SpecialExport extends SpecialPage {
$wgOut->addHTML( wfMsgExt( 'exportnohistory', 'parse' ) );
}
$form .= Xml::checkLabel( wfMsg( 'export-templates' ), 'templates', 'wpExportTemplates', false ) . '<br />';
$form .= Xml::inputLabel( wfMsg( 'export-pagelinks' ), 'pagelink-depth', 'pagelink-depth', 20, 0 ) . '<br />';
if( $wgExportMaxLinkDepth ) {
$form .= Xml::inputLabel( wfMsg( 'export-pagelinks' ), 'pagelink-depth', 'pagelink-depth', 20, 0 ) . '<br />';
}
// Enable this when we can do something useful exporting/importing image information. :)
//$form .= Xml::checkLabel( wfMsg( 'export-images' ), 'images', 'wpExportImages', false ) . '<br />';
$form .= Xml::checkLabel( wfMsg( 'export-download' ), 'wpDownload', 'wpDownload', true ) . '<br />';
@ -270,6 +273,20 @@ class SpecialExport extends SpecialPage {
array( 'page_id=tl_from' ) );
}
/**
* Validate link depth setting, if available.
*/
private function validateLinkDepth( $depth ) {
global $wgExportMaxLinkDepth;
if( $depth < 0 ) {
return 0;
}
if( $depth > $wgExportMaxLinkDepth ) {
return $wgExportMaxLinkDepth;
}
return intval( $depth );
}
/** Expand a list of pages to include pages linked to from that page. */
private function getPageLinks( $inputPages, $pageSet, $depth ) {
for( $depth=$depth; $depth>0; --$depth ) {