<?php
class PdfBookHooks {
/**
* Perform the export operation
*/
public static function onUnknownAction( $action, $article ) {
global $wgOut, $wgUser, $wgParser, $wgRequest;
global $wgServer, $wgArticlePath, $wgScriptPath, $wgUploadPath, $wgUploadDirectory, $wgScript;
if( $action == 'pdfbook' || $action == 'nspdfbook') {
$title = $article->getTitle();
$opt = ParserOptions::newFromUser( $wgUser );
// Log the export
$msg = wfMsg( 'pdfbook-log', $wgUser->getUserPage()->getPrefixedText() );
$log = new LogPage( 'pdf', false );
$log->addEntry( 'book', $article->getTitle(), $msg );
// Initialise PDF variables
$format = $wgRequest->getText( 'format' );
$notitle = $wgRequest->getText( 'notitle' );
$layout = $format == 'single' ? '--webpage' : '--firstpage toc';
$charset = self::setProperty( 'Charset', 'iso-8859-1' );
$left = self::setProperty( 'LeftMargin', '1cm' );
$right = self::setProperty( 'RightMargin', '1cm' );
$top = self::setProperty( 'TopMargin', '1cm' );
$bottom = self::setProperty( 'BottomMargin','1cm' );
$font = self::setProperty( 'Font', 'Arial' );
$size = self::setProperty( 'FontSize', '8' );
$ls = self::setProperty( 'LineSpacing', 1 );
$linkcol = self::setProperty( 'LinkColour', '217A28' );
$levels = self::setProperty( 'TocLevels', '2' );
$exclude = self::setProperty( 'Exclude', array() );
$width = self::setProperty( 'Width', '' );
$width = $width ? "--browserwidth $width" : '';
if( !is_array( $exclude ) ) $exclude = split( '\\s*,\\s*', $exclude );
// Select articles from members if a category or links in content if not
if( $format == 'single' ) $articles = array( $title );
else {
$articles = array();
if( $title->getNamespace() == NS_CATEGORY ) {
$db = wfGetDB( DB_SLAVE );
$cat = $db->addQuotes( $title->getDBkey() );
$result = $db->select(
'categorylinks',
'cl_from',
"cl_to = $cat",
'PdfBook',
array( 'ORDER BY' => 'cl_sortkey' )
);
if( $result instanceof ResultWrapper ) $result = $result->result;
while ( $row = $db->fetchRow( $result ) ) $articles[] = Title::newFromID( $row[0] );
}
// START PATCH djbclark
else { if ($action == 'nspdfbook') {
$db = &wfGetDB(DB_SLAVE);
$pl = $db->tableName('page');
$ns = $title->getNamespace();
$result = $db->query("SELECT page_id FROM $pl WHERE page_namespace = $ns ORDER BY page_name");
if ($result instanceof ResultWrapper) $result = $result->result;
while ($row = $db->fetchRow($result)) $articles[] = Title::newFromID($row[0]);
$book = "PDFBook_Namespace_Export-".Namespace::getCanonicalName($ns);
}
// END PATCH djbclark
else {
$text = $article->fetchContent();
$text = $wgParser->preprocess( $text, $title, $opt );
if ( preg_match_all( "/^\\*\\s*\\[{2}\\s*([^\\|\\]]+)\\s*.*?\\]{2}/m", $text, $links ) )
foreach ( $links[1] as $link ) $articles[] = Title::newFromText( $link );
}
}
// Format the article(s) as a single HTML document with absolute URL's
$book = $title->getText();
$html = '';
$wgArticlePath = $wgServer.$wgArticlePath;
$wgPdfBookTab = false;
$wgScriptPath = $wgServer.$wgScriptPath;
$wgUploadPath = $wgServer.$wgUploadPath;
$wgScript = $wgServer.$wgScript;
foreach( $articles as $title ) {
$ttext = $title->getPrefixedText();
if( !in_array( $ttext, $exclude ) ) {
$article = new Article( $title );
$text = $article->fetchContent();
$text = preg_replace( "/<!--([^@]+?)-->/s", "@@" . "@@$1@@" . "@@", $text ); # preserve HTML comments
if( $format != 'single' ) $text .= "__NOTOC__";
$opt->setEditSection( false ); # remove section-edit links
$out = $wgParser->parse( $text, $title, $opt, true, true );
$text = $out->getText();
$text = preg_replace( "|(<img[^>]+?src=\")(/.+?>)|", "$1$wgServer$2", $text ); # make image urls absolute
$text = preg_replace( "|<div\s*class=['\"]?noprint[\"']?>.+?</div>|s", "", $text ); # non-printable areas
$text = preg_replace( "|@{4}([^@]+?)@{4}|s", "<!--$1-->", $text ); # HTML comments hack
$ttext = basename( $ttext );
$h1 = $notitle ? "" : "<center><h1>$ttext</h1></center>";
$html .= utf8_decode( "$h1$text\n" );
}
}
// $wgPdfBookTab = false; If format=html in query-string, return html content directly
if( $format == 'html' ) {
$wgOut->disable();
header( "Content-Type: text/html" );
header( "Content-Disposition: attachment; filename=\"$book.html\"" );
print $html;
}
else {
// Write the HTML to a tmp file
if( !is_dir( $wgUploadDirectory ) ) mkdir( $wgUploadDirectory );
$file = "$wgUploadDirectory/" . uniqid( 'pdf-book' );
file_put_contents( $file, $html );
$footer = $format == 'single' ? "..." : ".1.";
$toc = $format == 'single' ? "" : " --toclevels $levels";
// Send the file to the client via htmldoc converter
$wgOut->disable();
header( "Content-Type: application/pdf" );
header( "Content-Disposition: attachment; filename=\"$book.pdf\"" );
$cmd = "--left $left --right $right --top $top --bottom $bottom";
$cmd .= " --header ... --footer $footer --headfootsize 8 --quiet --jpeg --color";
$cmd .= " --bodyfont $font --fontsize $size --fontspacing $ls --linkstyle plain --linkcolor $linkcol";
$cmd .= "$toc --no-title --format pdf14 --numbered $layout $width";
$cmd = "htmldoc -t pdf --charset $charset $cmd $file";
putenv( "HTMLDOC_NOCGI=1" );
passthru( $cmd );
@unlink( $file );
}
return false;
}
return true;
}
/**
* Return a property for htmldoc using global, request or passed default
*/
private static function setProperty( $name, $default ) {
global $wgRequest;
if ( $wgRequest->getText( "pdf$name" ) ) return $wgRequest->getText( "pdf$name" );
if ( $wgRequest->getText( "amp;pdf$name" ) ) return $wgRequest->getText( "amp;pdf$name" ); // hack to handle ampersand entities in URL
if ( isset( $GLOBALS["wgPdfBook$name"] ) ) return $GLOBALS["wgPdfBook$name"];
return $default;
}
/**
* Add PDF to actions tabs in MonoBook based skins
*/
public static function onSkinTemplateTabs( $skin, &$actions) {
global $wgPdfBookTab;
if ( $wgPdfBookTab ) {
$actions['pdfbook'] = array(
'class' => false,
'text' => wfMsg( 'pdfbook-action' ),
'href' => $skin->getTitle()->getLocalURL( "action=pdfbook&format=single" ),
);
}
return true;
}
/**
* Add PDF to actions tabs in vector based skins
*/
public static function onSkinTemplateNavigation( $skin, &$actions ) {
global $wgPdfBookTab;
if ( $wgPdfBookTab ) {
$actions['views']['pdfbook'] = array(
'class' => false,
'text' => wfMsg( 'pdfbook-action' ),
'href' => $skin->getTitle()->getLocalURL( "action=pdfbook&format=single" ),
);
}
return true;
}
}
