Extension:PdfBook

<?php

1. Extension:PdfBook

These are the MediaWiki extensions we're using and/or developing. Please refer to the information on the mediawiki.org wiki for installation and usage details. Extensions here which have no corresponding mediawiki article are either not ready for use or have been superseded. You can also browse our extension code in our local Subversion repository or our GitHub mirror.

1. - Licenced under LGPL (http://www.gnu.org/copyleft/lesser.html)
2. - Author: User:NadCategory:Extensions in progress
3. - Started: 2007-08-08

if (!defined('MEDIAWIKI')) die('Not an entry point.');

define('PDFBOOK_VERSION','0.0.12, 2008-06-22');

$wgPdfBookMagic = "book"; $wgExtensionFunctions[] = 'wfSetupPdfBook'; $wgHooks['LanguageGetMagic'][] = 'wfPdfBookLanguageGetMagic';

$wgExtensionCredits['parserhook'][] = array( 'name' => 'Pdf Book', 'author' => 'User:Nad', 'description' => 'Composes a book from articles in a category and exports as a PDF book', 'url' => 'http://www.mediawiki.org/wiki/Extension:Pdf_Book', 'version' => PDFBOOK_VERSION );

class PdfBook {

# Constructor function PdfBook() { global $wgHooks,$wgParser,$wgPdfBookMagic; $wgParser->setFunctionHook($wgPdfBookMagic,array($this,'magicBook')); $wgHooks['UnknownAction'][] = $this;

# Add a new pdf log type global $wgLogTypes,$wgLogNames,$wgLogHeaders,$wgLogActions; $wgLogTypes[] = 'pdf'; $wgLogNames ['pdf'] = 'pdflogpage'; $wgLogHeaders['pdf'] = 'pdflogpagetext'; $wgLogActions['pdf/book'] = 'pdflogentry'; }

# Expand the book-magic function magicBook(&$parser) {

# Populate $argv with both named and numeric parameters $argv = array(); foreach (func_get_args() as $arg) if (!is_object($arg)) { if (preg_match('/^(.+?)\\s*=\\s*(.+)$/',$arg,$match)) $argv[$match[1]] = $match[2]; else $argv[] = $arg; }

return $text; }

function onUnknownAction($action,$article) { global $wgOut,$wgUser,$wgTitle,$wgParser; global $wgServer,$wgArticlePath,$wgScriptPath,$wgUploadPath,$wgUploadDirectory,$wgScript;

if ($action == 'pdfbook') {

# Log the export $msg = $wgUser->getUserPage()->getPrefixedText().' exported as a PDF book'; $log = new LogPage('pdf',false); $log->addEntry('book',$wgTitle,$msg);

# Initialise PDF variables $layout = '--firstpage toc'; $left = $this->setProperty('LeftMargin', '1cm'); $right = $this->setProperty('RightMargin', '1cm'); $top = $this->setProperty('TopMargin', '1cm'); $bottom = $this->setProperty('BottomMargin','1cm'); $font = $this->setProperty('Font', 'Arial'); $size = $this->setProperty('FontSize', '8'); $link = $this->setProperty('LinkColour', '217A28'); $levels = $this->setProperty('TocLevels', '2'); $exclude = $this->setProperty('Exclude', array()); if (!is_array($exclude)) $exclude = split('\\s*,\\s*',$exclude);

# Select articles from members if a category or links in content if not $articles = array(); $title = $article->getTitle(); $opt = ParserOptions::newFromUser($wgUser); 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]); } 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; $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 $text .= ; $opt->setEditSection(false); # remove section-edit links $wgOut->setHTMLTitle($ttext); # use this so DISPLAYTITLE magic works $out = $wgParser->parse($text,$title,$opt,true,true); $ttext = $wgOut->getHTMLTitle(); $text = $out->getText(); $text = preg_replace('|(<img[^>]+?src=")(/.+?>)|',"$1$wgServer$2",$text); $text = preg_replace('|@{4}([^@]+?)@{4}|s',,$text); # HTML comments hack $text = preg_replace('|<table|','<table border borderwidth=2 cellpadding=3 cellspacing=0',$text); $ttext = basename($ttext);

$html .= utf8_decode("

$ttext

$text\n");

} }

# If format=html in query-string, return html content directly if (isset($_REQUEST['format']) && $_REQUEST['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 $file = "$wgUploadDirectory/".uniqid('pdf-book'); $fh = fopen($file,'w+'); fwrite($fh,$html); fclose($fh);

# 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 .1. --headfootsize 8 --quiet --jpeg --color"; $cmd .= " --bodyfont $font --fontsize $size --linkstyle plain --linkcolor $links"; $cmd .= " --toclevels $levels --format pdf14 --numbered $layout"; $cmd = "htmldoc -t pdf --charset iso-8859-1 $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 function setProperty($name,$default) { if (isset($_REQUEST["pdf$name"])) return $_REQUEST["pdf$name"]; if (isset($GLOBALS["wgPdfBook$name"])) return $GLOBALS["wgPdfBook$name"]; return $default; }

# Needed in some versions to prevent Special:Version from breaking function __toString() { return 'PdfBook'; } }

1. Called from $wgExtensionFunctions array when initialising extensions

function wfSetupPdfBook() { global $wgPdfBook; $wgPdfBook = new PdfBook(); }

1. Needed in MediaWiki >1.8.0 for magic word hooks to work properly

function wfPdfBookLanguageGetMagic(&$magicWords,$langCode = 0) { global $wgPdfBookMagic; $magicWords[$wgPdfBookMagic] = array(0,$wgPdfBookMagic); return true; }