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<?php
/**
* Displays a form for entering the title of a page, which then redirects
* to the form for creating/editing the page.
*
* @author Yaron Koren
* @author Jeffrey Stuckman
* @file
* @ingroup SF
*/
/**
* @ingroup SFSpecialPages
*/
class SFFormStart extends SpecialPage {
/**
* Constructor
*/
function __construct() {
parent::__construct( 'FormStart' );
}
function execute( $query ) {
global $wgOut, $wgRequest;
$this->setHeaders();
$form_name = $wgRequest->getVal( 'form' );
$target_namespace = $wgRequest->getVal( 'namespace' );
$super_page = $wgRequest->getVal( 'super_page' );
$params = $wgRequest->getVal( 'params' );
// If the query string did not contain a form name, try the URL
if ( ! $form_name ) {
$queryparts = explode( '/', $query, 2 );
$form_name = isset( $queryparts[0] ) ? $queryparts[0] : '';
// If a target was specified, it means we should
// redirect to 'FormEdit' for this target page.
if ( isset( $queryparts[1] ) ) {
$target_name = $queryparts[1];
$this->doRedirect( $form_name, $target_name, $params );
}
// Get namespace from the URL, if it's there.
if ( $namespace_label_loc = strpos( $form_name, "/Namespace:" ) ) {
$target_namespace = substr( $form_name, $namespace_label_loc + 11 );
$form_name = substr( $form_name, 0, $namespace_label_loc );
}
}
// Get title of form.
$form_title = Title::makeTitleSafe( SF_NS_FORM, $form_name );
// Handle submission of this form.
$form_submitted = $wgRequest->getCheck( 'page_name' );
if ( $form_submitted ) {
$page_name = $wgRequest->getVal( 'page_name' );
// This form can be used to create a sub-page for an
// existing page
if ( !is_null( $super_page ) && $super_page !== '' ) {
$page_name = "$super_page/$page_name";
}
if ( $page_name !== '' ) {
// Append the namespace prefix to the page name,
// if this namespace was not already entered.
if ( strpos( $page_name, $target_namespace . ':' ) === false && !is_null( $target_namespace ) )
$page_name = $target_namespace . ':' . $page_name;
// If there was no page title, it's probably an
// invalid page name, containing forbidden
// characters - in that case, display an error
// message.
$page_title = Title::newFromText( $page_name );
if ( !$page_title ) {
$wgOut->addHTML( wfMessage( 'sf_formstart_badtitle', $page_name )->escaped() );
return;
} else {
$this->doRedirect( $form_name, $page_name, $params );
return;
}
}
}
if ( ( !$form_title || !$form_title->exists() ) && ( $form_name !== '' ) ) {
$text = Html::rawElement( 'p', array( 'class' => 'error' ), wfMessage( 'sf_formstart_badform', SFUtils::linkText( SF_NS_FORM, $form_name ) )->parse() ) . "\n";
} else {
if ( $form_name === '' ) {
$description = wfMessage( 'sf_formstart_noform_docu', $form_name )->escaped();
}
else {
$description = wfMessage( 'sf_formstart_docu', $form_name )->escaped();
}
$text = <<<END
<form action="" method="post">
<p>$description</p>
<p><input type="text" size="40" name="page_name" />
END;
// If no form was specified, display a dropdown letting
// the user choose the form.
if ( $form_name === '' )
$text .= SFUtils::formDropdownHTML();
$text .= "\t</p>\n";
$text .= Html::hidden( 'namespace', $target_namespace );
$text .= Html::hidden( 'super_page', $super_page );
$text .= Html::hidden( 'params', $params );
$text .= "\n\t" . Html::input( null, wfMessage( 'sf_formstart_createoredit' )->text(), 'submit' ) . "\n";
$text .= "\t</form>\n";
}
$wgOut->addHTML( $text );
}
/**
* Helper function - returns a URL that includes Special:FormEdit.
*/
static function getFormEditURL( $formName, $targetName) {
$fe = SpecialPageFactory::getPage( 'FormEdit' );
// Special handling for forms whose name contains a slash.
if ( strpos( $formName, '/' ) !== false ) {
return $fe->getTitle()->getLocalURL( array( 'form' => $formName, 'target' => $targetName ) );
}
return $fe->getTitle( "$formName/$targetName" )->getLocalURL();
}
function doRedirect( $form_name, $page_name, $params ) {
global $wgOut;
$page_title = Title::newFromText( $page_name );
if ( $page_title->exists() ) {
// It exists - see if page is a redirect; if
// it is, edit the target page instead.
$article = new Article( $page_title, 0 );
$article->loadContent();
$redirect_title = Title::newFromRedirect( $article->fetchContent() );
if ( $redirect_title != null ) {
$page_title = $redirect_title;
$page_name = SFUtils::titleURLString( $redirect_title );
}
// HACK - if this is the default form for
// this page, send to the regular 'formedit'
// tab page; otherwise, send to the 'Special:FormEdit'
// page, with the form name hardcoded.
// Is this logic necessary? Or should we just
// out-guess the user and always send to the
// standard form-edit page, with the 'correct' form?
$default_forms = SFFormLinker::getDefaultFormsForPage( $page_title );
if ( count( $default_forms ) > 0 ) {
$default_form_name = $default_forms[0];
} else {
$default_form_name = null;
}
if ( $form_name == $default_form_name ) {
$redirect_url = $page_title->getLocalURL( 'action=formedit' );
} else {
$redirect_url = self::getFormEditURL( $form_name, $page_name );
}
} else {
$redirect_url = self::getFormEditURL( $form_name, $page_name );
// Of all the request values, send on to 'FormEdit'
// only 'preload' and specific form fields - we can
// identify the latter because they show up as arrays.
foreach ( $_REQUEST as $key => $val ) {
if ( is_array( $val ) ) {
$redirect_url .= ( strpos( $redirect_url, '?' ) > - 1 ) ? '&' : '?';
// Re-add the key (i.e. the template
// name), so we can make a nice query
// string snippet out of the whole
// thing.
$wrapperArray = array( $key => $val );
$redirect_url .= urldecode( http_build_query( $wrapperArray ) );
} elseif ( $key == 'preload' ) {
$redirect_url .= ( strpos( $redirect_url, '?' ) > - 1 ) ? '&' : '?';
$redirect_url .= "$key=$val";
}
}
}
if ( !is_null( $params ) && $params !== '' ) {
$redirect_url .= ( strpos( $redirect_url, '?' ) > - 1 ) ? '&' : '?';
$redirect_url .= $params;
}
$wgOut->setArticleBodyOnly( true );
// Show "loading" animated image while people wait for the
// redirect.
global $sfgScriptPath;
$text = <<<END
<p style="position: absolute; left: 45%; top: 45%;">
<img src="$sfgScriptPath/skins/loading.gif" />
</p>
<meta http-equiv="refresh" content="0; url=$redirect_url" />
END;
$wgOut->addHTML( $text );
return;
}
}
|
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