*/
// must be run within Dokuwiki
if(!defined('DOKU_INC')) die();
class action_plugin_ebookexport extends DokuWiki_Action_Plugin {
/**
* Registers a callback function for a given event
*
* @param Doku_Event_Handler $controller DokuWiki's event controller object
* @return void
*/
public function register(Doku_Event_Handler $controller) {
$controller->register_hook('ACTION_ACT_PREPROCESS', 'BEFORE', $this, 'exportepub', array());
$controller->register_hook('TEMPLATE_PAGETOOLS_DISPLAY', 'BEFORE', $this, 'addepubbutton', array());
}
public function exportepub(Doku_Event $event) {
global $ACT;
global $ID;
global $conf;
// our event?
if($ACT != 'export_epub') return false;
// check user's rights
if(auth_quickaclcheck($ID) < AUTH_READ) return false;
// it's ours, no one else's
$event->preventDefault();
$tempdir=tempnam(sys_get_temp_dir(),'');
if (file_exists($tempdir)) { unlink($tempdir); }
mkdir($tempdir);
require_once DOKU_INC . 'inc/parser/parser.php';
$mypage = pageinfo();
$mypath = $mypage["filepath"];
$doc = file_get_contents($mypath);
$instructions = p_get_instructions($doc);
require_once DOKU_INC . 'inc/parser/xhtml.php';
$Renderer = new Doku_Renderer_XHTML();
foreach ( $instructions as $instruction ) {
call_user_func_array(array(&$Renderer, $instruction[0]),$instruction[1]);
}
$tocarray = $Renderer->toc;
$pages = $Renderer->doc;
if(isset($conf['baseurl']) && ($conf['baseurl'] != '')){
$url = $conf['baseurl'] . '/';
}
else{
$self = parse_url(DOKU_URL);
$url = $self['scheme'] . '://' . $self['host'];
if($self['port']) {
$url .= ':' . $self['port'];
}
$url .= '/';
}
$pages = preg_replace('/href="\//',"href=\"$url",$pages);
file_put_contents($tempdir . "/pages.xhtml",$pages);
$mimetype = "application/epub+zip";
file_put_contents($tempdir . "/mimetype",$mimetype);
$pagestyle = "@page {\nmargin-bottom: 5pt;\nmargin-top: 5pt;\n}\n";
file_put_contents($tempdir . "/page_styles.css",$pagestyle);
$stylesheet = "h2 {\nfont-size: large;\n}\n";
file_put_contents($tempdir . "/stylesheet.css",$stylesheet);
mkdir($tempdir . "/META-INF");
$container = '';
file_put_contents($tempdir . "/META-INF/container.xml", $container);
if(isset($mypage["meta"]["title"])){
$mytitle = $mypage["meta"]["title"];
} else{
$mytitle = preg_replace('/^.*:/','',$ID);
$mytitle = ucwords(preg_replace('/_/',' ',$mytitle));
}
$epubuuid = preg_replace('/^(........)(....)(....)(....)(............).*/','${1}-${2}-${3}-${4}-${5}',md5($conf['title'] . $mytitle . $mypage['lastmod']));
$files = array('content.opf','mimetype','page_styles.css','pages.xhtml','stylesheet.css','titlepage.xhtml','toc.ncx','META-INF/container.xml');
$content = "";
$content .= '';
$content .= '';
$content .= 'en';
$content .= '' . $mytitle . '';
$content .= '' . $conf['title'] . '';
$content .= '';
$content .= '' . date("Y-m-d\TH:i:s:P",$mypage['lastmod']) . '';
$content .= '';
$content .= '' . $epubuuid . '';
$content .= '';
$content .= '';
if(isset($mypage["meta"]["relation"]["media"])){
foreach($mypage["meta"]["relation"]["media"] as $mediaitem => $whatever){
$mediafile = mediaFN($mediaitem);
$mediamime = mime_content_type($mediafile);
$medialink = ml($mediaitem);
$mediadir = dirname($medialink);
if(!is_dir($tempdir . $mediadir))
mkdir($tempdir . $mediadir, 0777, true);
copy($mediafile,$tempdir . $medialink);
array_push($files,substr($medialink,1));
$content .= '';
$titlepage .= '
' . $mytitle . '
';
$titlepage .= '' . $conf['title'] . '
';
$titlepage .= '';
$titlepage .= '';
file_put_contents($tempdir . "/titlepage.xhtml",$titlepage);
$toc = "";
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= '';
$toc .= 'Titel';
$toc .= '';
$toc .= '';
for($i=0;$i';
$toc .= '' . $tocarray[$i]["title"] . '';
$toc .= '';
$toc .= '';
}
$toc .= '';
file_put_contents($tempdir . "/toc.ncx",$toc);
$zip = new ZipArchive();
$zipfile = $tempdir . "/" . $ID . ".epub";
$zip->open($zipfile,ZipArchive::CREATE);
foreach($files as $file){
$zip->addFile($tempdir . "/" . $file,$file);
}
$zip->close();
header('Content-Type: application/epub+zip');
header('Cache-Control: must-revalidate, no-cache');
header('Pragma: no-cache');
$filename = preg_replace('/ /','_',$mytitle) . ".epub";
header('Content-Disposition: attachment; filename="' . $filename . '";');
//Bookcreator uses jQuery.fileDownload.js, which requires a cookie.
header('Set-Cookie: fileDownload=true; path=/');
$fp = @fopen($zipfile, "rb");
if($fp) {
$size = filesize($zipfile);
header('Accept-Ranges: bytes');
header("Content-Length: $size");
fseek($fp,0);
$chunk = ($size > HTTP_CHUNK_SIZE) ? HTTP_CHUNK_SIZE : $size;
while (!feof($fp) && $chunk > 0) {
@set_time_limit(30);
print fread($fp, $chunk);
flush();
$size -= $chunk;
$chunk = ($size > HTTP_CHUNK_SIZE) ? HTTP_CHUNK_SIZE : $size;
}
} else {
header("HTTP/1.0 500 Internal Server Error");
print "Could not read file - bad permissions?";
$ranges[] = array(0,$size,$size);
}
$this->rrmdir($tempdir);
exit;
}
private function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir."/".$object))
$this->rrmdir($dir."/".$object);
else
unlink($dir."/".$object);
}
}
rmdir($dir);
}
}
public function addepubbutton(Doku_Event $event) {
global $ID, $REV;
if($event->data['view'] == 'main') {
$params = array('do' => 'export_epub');
if($REV) {
$params['rev'] = $REV;
}
// insert button at position before last (up to top)
$event->data['items'] = array_slice($event->data['items'], 0, -1, true) +
array('export_epub' =>
''
. ''
. 'Export to EPUB'
. ''
. ''
) +
array_slice($event->data['items'], -1, 1, true);
}
}
}
// vim:ts=4:sw=4:et: