Cleanup execution flow through SpecialSearch::execute()

Not a big change, but makes it so there is only one path into
SpecialSearch::showResults(). Makes things a little easier to follow.
Also moves the code for checking if full text search is disabled into
execute(), makes sense to check before even trying to make a search
engine. Also moves some setup code out of execute and into the setupPage
function

Bug: T150393
Change-Id: Ib527fc3a3c39eb2e56985e5d1e4905fc4562353c
This commit is contained in:
Erik Bernhardson 2016-11-14 17:11:43 -08:00
parent 6e155624fa
commit 7075ea92d2
2 changed files with 141 additions and 147 deletions

View file

@ -101,35 +101,29 @@ class SpecialSearch extends SpecialPage {
*/
public function execute( $par ) {
$request = $this->getRequest();
$out = $this->getOutput();
// Fetch the search term
$search = str_replace( "\n", " ", $request->getText( 'search' ) );
$term = str_replace( "\n", " ", $request->getText( 'search' ) );
// Historically search terms have been accepted not only in the search query
// parameter, but also as part of the primary url. This can have PII implications
// in releasing page view data. As such issue a 301 redirect to the correct
// URL.
if ( strlen( $par ) && !strlen( $search ) ) {
if ( strlen( $par ) && !strlen( $term ) ) {
$query = $request->getValues();
unset( $query['title'] );
// Strip underscores from title parameter; most of the time we'll want
// text form here. But don't strip underscores from actual text params!
$query['search'] = str_replace( '_', ' ', $par );
$this->getOutput()->redirect( $this->getPageTitle()->getFullURL( $query ), 301 );
$out->redirect( $this->getPageTitle()->getFullURL( $query ), 301 );
return;
}
$this->setHeaders();
$this->outputHeader();
$out = $this->getOutput();
$out->allowClickjacking();
$out->addModuleStyles( [
'mediawiki.special', 'mediawiki.special.search.styles', 'mediawiki.ui', 'mediawiki.ui.button',
'mediawiki.ui.input', 'mediawiki.widgets.SearchInputWidget.styles',
] );
$this->addHelpLink( 'Help:Searching' );
// Need to load selected namespaces before handling nsRemember
$this->load();
// TODO: This performs database actions on GET request, which is going to
// be a problem for our multi-datacenter work.
if ( !is_null( $request->getVal( 'nsRemember' ) ) ) {
$this->saveNamespaces();
// Remove the token from the URL to prevent the user from inadvertently
@ -141,16 +135,48 @@ class SpecialSearch extends SpecialPage {
return;
}
$out->addJsConfigVars( [ 'searchTerm' => $search ] );
$this->searchEngineType = $request->getVal( 'srbackend' );
if ( $request->getVal( 'fulltext' )
|| !is_null( $request->getVal( 'offset' ) )
if (
!$request->getVal( 'fulltext' ) &&
$request->getVal( 'offset' ) === null
) {
$this->showResults( $search );
} else {
$this->goResult( $search );
$url = $this->goResult( $term );
if ( $url !== null ) {
// successful 'go'
$out->redirect( $url );
return;
}
}
$this->setupPage( $term );
if ( $this->getConfig()->get( 'DisableTextSearch' ) ) {
$searchForwardUrl = $this->getConfig()->get( 'SearchForwardUrl' );
if ( $searchForwardUrl ) {
$url = str_replace( '$1', urlencode( $term ), $searchForwardUrl );
$out->redirect( $url );
} else {
$out->addHTML(
"<fieldset>" .
"<legend>" .
$this->msg( 'search-external' )->escaped() .
"</legend>" .
"<p class='mw-searchdisabled'>" .
$this->msg( 'searchdisabled' )->escaped() .
"</p>" .
$this->msg( 'googlesearch' )->rawParams(
htmlspecialchars( $term ),
'UTF-8',
$this->msg( 'searchbutton' )->escaped()
)->text() .
"</fieldset>"
);
}
return;
}
$this->showResults( $term );
}
/**
@ -209,32 +235,25 @@ class SpecialSearch extends SpecialPage {
* If an exact title match can be found, jump straight ahead to it.
*
* @param string $term
* @return string|null The url to redirect to, or null if no redirect.
*/
public function goResult( $term ) {
$this->setupPage( $term );
# Try to go to page as entered.
$title = Title::newFromText( $term );
# If the string cannot be used to create a title
if ( is_null( $title ) ) {
$this->showResults( $term );
return;
if ( is_null( Title::newFromText( $term ) ) ) {
return null;
}
# If there's an exact or very near match, jump right there.
$title = $this->getSearchEngine()
->getNearMatcher( $this->getConfig() )->getNearMatch( $term );
if ( !is_null( $title ) &&
Hooks::run( 'SpecialSearchGoResult', [ $term, $title, &$url ] )
) {
if ( $url === null ) {
$url = $title->getFullURL();
}
$this->getOutput()->redirect( $url );
return;
if ( is_null( $title ) ) {
return null;
}
$this->showResults( $term );
$url = null;
if ( !Hooks::run( 'SpecialSearchGoResult', [ $term, $title, &$url ] ) ) {
return null;
}
return $url === null ? $title->getFullURL() : $url;
}
/**
@ -243,42 +262,21 @@ class SpecialSearch extends SpecialPage {
public function showResults( $term ) {
global $wgContLang;
if ( $this->searchEngineType !== null ) {
$this->setExtraParam( 'srbackend', $this->searchEngineType );
}
$search = $this->getSearchEngine();
$search->setFeatureData( 'rewrite', $this->runSuggestion );
$search->setLimitOffset( $this->limit, $this->offset );
$search->setNamespaces( $this->namespaces );
$search->prefix = $this->mPrefix;
$term = $search->transformSearchTerm( $term );
Hooks::run( 'SpecialSearchSetupEngine', [ $this, $this->profile, $search ] );
$this->setupPage( $term );
$out = $this->getOutput();
if ( $this->getConfig()->get( 'DisableTextSearch' ) ) {
$searchFowardUrl = $this->getConfig()->get( 'SearchForwardUrl' );
if ( $searchFowardUrl ) {
$url = str_replace( '$1', urlencode( $term ), $searchFowardUrl );
$out->redirect( $url );
} else {
$out->addHTML(
Xml::openElement( 'fieldset' ) .
Xml::element( 'legend', null, $this->msg( 'search-external' )->text() ) .
Xml::element(
'p',
[ 'class' => 'mw-searchdisabled' ],
$this->msg( 'searchdisabled' )->text()
) .
$this->msg( 'googlesearch' )->rawParams(
htmlspecialchars( $term ),
'UTF-8',
$this->msg( 'searchbutton' )->escaped()
)->text() .
Xml::closeElement( 'fieldset' )
);
}
Hooks::run( 'SpecialSearchSetupEngine', [ $this, $this->profile, $search ] );
if ( !Hooks::run( 'SpecialSearchResultsPrepend', [ $this, $out, $term ] ) ) {
# Hook requested termination
return;
}
@ -298,33 +296,6 @@ class SpecialSearch extends SpecialPage {
$textMatches = $textStatus->getValue();
}
// did you mean... suggestions
$didYouMeanHtml = '';
if ( $showSuggestion && $textMatches ) {
if ( $textMatches->hasRewrittenQuery() ) {
$didYouMeanHtml = $this->getDidYouMeanRewrittenHtml( $term, $textMatches );
} elseif ( $textMatches->hasSuggestion() ) {
$didYouMeanHtml = $this->getDidYouMeanHtml( $textMatches );
}
}
if ( !Hooks::run( 'SpecialSearchResultsPrepend', [ $this, $out, $term ] ) ) {
# Hook requested termination
return;
}
// start rendering the page
$out->addHTML(
Xml::openElement(
'form',
[
'id' => ( $this->isPowerSearch() ? 'powersearch' : 'search' ),
'method' => 'get',
'action' => wfScript(),
]
)
);
// Get number of results
$titleMatchesNum = $textMatchesNum = $numTitleMatches = $numTextMatches = 0;
if ( $titleMatches ) {
@ -338,18 +309,26 @@ class SpecialSearch extends SpecialPage {
$num = $titleMatchesNum + $textMatchesNum;
$totalRes = $numTitleMatches + $numTextMatches;
// start rendering the page
$out->enableOOUI();
$out->addHTML(
# This is an awful awful ID name. It's not a table, but we
# named it poorly from when this was a table so now we're
# stuck with it
Xml::openElement( 'div', [ 'id' => 'mw-search-top-table' ] ) .
$this->shortDialog( $term, $num, $totalRes ) .
Xml::closeElement( 'div' ) .
$this->searchProfileTabs( $term ) .
$this->searchOptions( $term ) .
Xml::closeElement( 'form' ) .
$didYouMeanHtml
Xml::openElement(
'form',
[
'id' => ( $this->isPowerSearch() ? 'powersearch' : 'search' ),
'method' => 'get',
'action' => wfScript(),
]
) .
# This is an awful awful ID name. It's not a table, but we
# named it poorly from when this was a table so now we're
# stuck with it
"<div id='mw-search-top-table'>" .
$this->shortDialog( $term, $num, $totalRes ) .
"</div>" .
$this->searchProfileTabs( $term ) .
$this->searchOptions( $term ) .
'</form>'
);
$filePrefix = $wgContLang->getFormattedNsText( NS_FILE ) . ':';
@ -358,9 +337,21 @@ class SpecialSearch extends SpecialPage {
return;
}
// did you mean... suggestions
if ( $textMatches ) {
if ( $textMatches->hasRewrittenQuery() ) {
$out->addHTML( $this->getDidYouMeanRewrittenHtml( $term, $textMatches ) );
} elseif ( $textMatches->hasSuggestion() ) {
$out->addHTML( $this->getDidYouMeanHtml( $textMatches ) );
}
}
$out->addHTML( "<div class='searchresults'>" );
$hasErrors = $textStatus && $textStatus->getErrors();
$hasOtherResults = $textMatches &&
$textMatches->hasInterwikiResults( SearchResultSet::INLINE_RESULTS );
if ( $hasErrors ) {
list( $error, $warning ) = $textStatus->splitByErrorType();
if ( $error->getErrors() ) {
@ -379,25 +370,18 @@ class SpecialSearch extends SpecialPage {
}
}
// prev/next links
$prevnext = null;
if ( $num || $this->offset ) {
// Show the create link ahead
$this->showCreateLink( $title, $num, $titleMatches, $textMatches );
if ( $totalRes > $this->limit || $this->offset ) {
if ( $this->searchEngineType !== null ) {
$this->setExtraParam( 'srbackend', $this->searchEngineType );
}
$prevnext = $this->getLanguage()->viewPrevNext(
$this->getPageTitle(),
$this->offset,
$this->limit,
$this->powerSearchOptions() + [ 'search' => $term ],
$this->limit + $this->offset >= $totalRes
);
}
// Show the create link ahead
$this->showCreateLink( $title, $num, $titleMatches, $textMatches );
// If we have no results and have not already displayed an error message
if ( $num === 0 && !$hasErrors ) {
$out->wrapWikiMsg( "<p class=\"mw-search-nonefound\">\n$1</p>", [
$hasOtherResults ? 'search-nonefound-thiswiki' : 'search-nonefound',
wfEscapeWikiText( $term )
] );
}
Hooks::run( 'SpecialSearchResults', [ $term, &$titleMatches, &$textMatches ] );
Hooks::run( 'SpecialSearchResults', [ $term, $titleMatches, $textMatches ] );
$out->parserOptions()->setEditSection( false );
if ( $titleMatches ) {
@ -429,23 +413,6 @@ class SpecialSearch extends SpecialPage {
}
}
$hasOtherResults = $textMatches &&
$textMatches->hasInterwikiResults( SearchResultSet::INLINE_RESULTS );
// If we have no results and we have not already displayed an error message
if ( $num === 0 && !$hasErrors ) {
if ( !$this->offset ) {
// If we have an offset the create link was rendered earlier in this function.
// This class needs a good de-spaghettification, but for now this will
// do the job.
$this->showCreateLink( $title, $num, $titleMatches, $textMatches );
}
$out->wrapWikiMsg( "<p class=\"mw-search-nonefound\">\n$1</p>", [
$hasOtherResults ? 'search-nonefound-thiswiki' : 'search-nonefound',
wfEscapeWikiText( $term )
] );
}
if ( $hasOtherResults ) {
foreach ( $textMatches->getInterwikiResults( SearchResultSet::INLINE_RESULTS )
as $interwiki => $interwikiResult ) {
@ -464,10 +431,19 @@ class SpecialSearch extends SpecialPage {
$out->addHTML( '<div class="mw-search-visualclear"></div>' );
if ( $prevnext ) {
// prev/next links
if ( $totalRes > $this->limit || $this->offset ) {
$prevnext = $this->getLanguage()->viewPrevNext(
$this->getPageTitle(),
$this->offset,
$this->limit,
$this->powerSearchOptions() + [ 'search' => $term ],
$this->limit + $this->offset >= $totalRes
);
$out->addHTML( "<p class='mw-search-pager-bottom'>{$prevnext}</p>\n" );
}
// Close <div class='searchresults'>
$out->addHTML( "</div>" );
Hooks::run( 'SpecialSearchResultsAppend', [ $this, $out, $term ] );
@ -622,10 +598,21 @@ class SpecialSearch extends SpecialPage {
}
/**
* Sets up everything for the HTML output page including styles, javascript,
* page title, etc.
*
* @param string $term
*/
protected function setupPage( $term ) {
$out = $this->getOutput();
$this->setHeaders();
$this->outputHeader();
// TODO: Is this true? The namespace remember uses a user token
// on save.
$out->allowClickjacking();
$this->addHelpLink( 'Help:Searching' );
if ( strval( $term ) !== '' ) {
$out->setPageTitle( $this->msg( 'searchresults' ) );
$out->setHTMLTitle( $this->msg( 'pagetitle' )
@ -633,8 +620,13 @@ class SpecialSearch extends SpecialPage {
->inContentLanguage()->text()
);
}
// add javascript specific to special:search
$out->addJsConfigVars( [ 'searchTerm' => $term ] );
$out->addModules( 'mediawiki.special.search' );
$out->addModuleStyles( [
'mediawiki.special', 'mediawiki.special.search.styles', 'mediawiki.ui', 'mediawiki.ui.button',
'mediawiki.ui.input', 'mediawiki.widgets.SearchInputWidget.styles',
] );
}
/**
@ -671,12 +663,12 @@ class SpecialSearch extends SpecialPage {
*/
protected function powerSearchOptions() {
$opt = [];
if ( !$this->isPowerSearch() ) {
$opt['profile'] = $this->profile;
} else {
if ( $this->isPowerSearch() ) {
foreach ( $this->namespaces as $n ) {
$opt['ns' . $n] = 1;
}
} else {
$opt['profile'] = $this->profile;
}
return $opt + $this->extraParams;

View file

@ -121,13 +121,15 @@ class SpecialSearchTest extends MediaWikiTestCase {
] );
# Initialize [[Special::Search]]
$ctx = new RequestContext();
$term = '{{SITENAME}}';
$ctx->setRequest( new FauxRequest( [ 'search' => $term, 'fulltext' => 1 ] ) );
$ctx->setTitle( Title::newFromText( 'Special:Search' ) );
$search = new SpecialSearch();
$search->getContext()->setTitle( Title::newFromText( 'Special:Search' ) );
$search->load();
$search->setContext( $ctx );
# Simulate a user searching for a given term
$term = '{{SITENAME}}';
$search->showResults( $term );
$search->execute( '' );
# Lookup the HTML page title set for that page
$pageTitle = $search