[github/wallabag/wallabag.git] / src / Wallabag / CoreBundle / Helper / EntriesExport.php

<?php

namespace Wallabag\CoreBundle\Helper;

use PHPePub\Core\EPub;
use PHPePub\Core\Structure\OPF\DublinCore;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Encoder\XmlEncoder;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;

class EntriesExport
{
    private $wallabagUrl;
    private $logoPath;
    private $title = '';
    private $entries = array();
    private $authors = array('wallabag');
    private $language = '';
    private $tags = array();
    private $footerTemplate = '<div style="text-align:center;">
        <p>Produced by wallabag with %EXPORT_METHOD%</p>
        <p>Please open <a href="https://github.com/wallabag/wallabag/issues">an issue</a> if you have trouble with the display of this E-Book on your device.</p>
        </div';

    /**
     * @param string $wallabagUrl Wallabag instance url
     * @param string $logoPath    Path to the logo FROM THE BUNDLE SCOPE
     */
    public function __construct($wallabagUrl, $logoPath)
    {
        $this->wallabagUrl = $wallabagUrl;
        $this->logoPath = $logoPath;
    }

    /**
     * Define entries.
     *
     * @param array|Entry $entries An array of entries or one entry
     */
    public function setEntries($entries)
    {
        if (!is_array($entries)) {
            $this->language = $entries->getLanguage();
            $entries = array($entries);
        }

        $this->entries = $entries;

        foreach ($entries as $entry) {
            $this->tags[] = $entry->getTags();
        }

        return $this;
    }

    /**
     * Sets the category of which we want to get articles, or just one entry.
     *
     * @param string $method Method to get articles
     */
    public function updateTitle($method)
    {
        $this->title = $method.' articles';

        if ('entry' === $method) {
            $this->title = $this->entries[0]->getTitle();
        }

        return $this;
    }

    /**
     * Sets the output format.
     *
     * @param string $format
     */
    public function exportAs($format)
    {
        switch ($format) {
            case 'epub':
                return $this->produceEpub();

            case 'mobi':
                return $this->produceMobi();

            case 'pdf':
                return $this->producePDF();

            case 'csv':
                return $this->produceCSV();

            case 'json':
                return $this->produceJSON();

            case 'xml':
                return $this->produceXML();
        }

        throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format));
    }

    /**
     * Use PHPePub to dump a .epub file.
     */
    private function produceEpub()
    {
        /*
         * Start and End of the book
         */
        $content_start =
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
            ."<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
            .'<head>'
            ."<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
            ."<title>wallabag articles book</title>\n"
            ."</head>\n"
            ."<body>\n";

        $bookEnd = "</body>\n</html>\n";

        $book = new EPub(EPub::BOOK_VERSION_EPUB3);

        /*
         * Book metadata
         */

        $book->setTitle($this->title);
        // Could also be the ISBN number, prefered for published books, or a UUID.
        $book->setIdentifier($this->title, EPub::IDENTIFIER_URI);
        // Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
        $book->setLanguage($this->language);
        $book->setDescription('Some articles saved on my wallabag');

        foreach ($this->authors as $author) {
            $book->setAuthor($author, $author);
        }

        // I hope this is a non existant address :)
        $book->setPublisher('wallabag', 'wallabag');
        // Strictly not needed as the book date defaults to time().
        $book->setDate(time());
        $book->setSourceURL($this->wallabagUrl);

        $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP');
        $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag');

        /*
         * Front page
         */
        if (file_exists($this->logoPath)) {
            $book->setCoverImage('Cover.png', file_get_contents($this->logoPath), 'image/png');
        }

        $book->addChapter('Notices', 'Cover2.html', $content_start.$this->getExportInformation('PHPePub').$bookEnd);

        $book->buildTOC();

        /*
         * Adding actual entries
         */

        // set tags as subjects
        foreach ($this->entries as $entry) {
            foreach ($this->tags as $tag) {
                $book->setSubject($tag['value']);
            }

            $chapter = $content_start.$entry->getContent().$bookEnd;
            $book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
        }

        return Response::create(
            $book->getBook(),
            200,
            array(
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/epub+zip',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.epub"',
                'Content-Transfer-Encoding' => 'binary',
            )
        )->send();
    }

    /**
     * Use PHPMobi to dump a .mobi file.
     */
    private function produceMobi()
    {
        $mobi = new \MOBI();
        $content = new \MOBIFile();

        /*
         * Book metadata
         */
        $content->set('title', $this->title);
        $content->set('author', implode($this->authors));
        $content->set('subject', $this->title);

        /*
         * Front page
         */
        $content->appendParagraph($this->getExportInformation('PHPMobi'));
        if (file_exists($this->logoPath)) {
            $content->appendImage(imagecreatefrompng($this->logoPath));
        }
        $content->appendPageBreak();

        /*
         * Adding actual entries
         */
        foreach ($this->entries as $entry) {
            $content->appendChapterTitle($entry->getTitle());
            $content->appendParagraph($entry->getContent());
            $content->appendPageBreak();
        }
        $mobi->setContentProvider($content);

        // the browser inside Kindle Devices doesn't likes special caracters either, we limit to A-z/0-9
        $this->title = preg_replace('/[^A-Za-z0-9\-]/', '', $this->title);

        return Response::create(
            $mobi->toString(),
            200,
            array(
                'Accept-Ranges' => 'bytes',
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/x-mobipocket-ebook',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.mobi"',
                'Content-Transfer-Encoding' => 'binary',
            )
        )->send();
    }

    /**
     * Use TCPDF to dump a .pdf file.
     */
    private function producePDF()
    {
        $pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);

        /*
         * Book metadata
         */
        $pdf->SetCreator(PDF_CREATOR);
        $pdf->SetAuthor('wallabag');
        $pdf->SetTitle($this->title);
        $pdf->SetSubject('Articles via wallabag');
        $pdf->SetKeywords('wallabag');

        /*
         * Front page
         */
        $pdf->AddPage();
        $intro = '<h1>'.$this->title.'</h1>'.$this->getExportInformation('tcpdf');

        $pdf->writeHTMLCell(0, 0, '', '', $intro, 0, 1, 0, true, '', true);

        /*
         * Adding actual entries
         */
        foreach ($this->entries as $entry) {
            foreach ($this->tags as $tag) {
                $pdf->SetKeywords($tag['value']);
            }

            $pdf->AddPage();
            $html = '<h1>'.$entry->getTitle().'</h1>';
            $html .= $entry->getContent();

            $pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true);
        }

        // set image scale factor
        $pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);

        return Response::create(
            $pdf->Output('', 'S'),
            200,
            array(
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/pdf',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.pdf"',
                'Content-Transfer-Encoding' => 'binary',
            )
        )->send();
    }

    /**
     * Inspired from CsvFileDumper.
     */
    private function produceCSV()
    {
        $delimiter = ';';
        $enclosure = '"';
        $handle = fopen('php://memory', 'rb+');

        fputcsv($handle, array('Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language'), $delimiter, $enclosure);

        foreach ($this->entries as $entry) {
            fputcsv(
                $handle,
                array(
                    $entry->getTitle(),
                    $entry->getURL(),
                    $entry->getContent(),
                    implode(', ', $entry->getTags()->toArray()),
                    $entry->getMimetype(),
                    $entry->getLanguage(),
                ),
                $delimiter,
                $enclosure
            );
        }

        rewind($handle);
        $output = stream_get_contents($handle);
        fclose($handle);

        return Response::create(
            $output,
            200,
            array(
                'Content-type' => 'application/csv',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.csv"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        )->send();
    }

    private function produceJSON()
    {
        $serializer = $this->prepareSerializingContent();
        $jsonContent = $serializer->serialize($this->entries, 'json');

        return Response::create(
            $jsonContent,
            200,
            array(
                'Content-type' => 'application/json',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        )->send();
    }

    private function produceXML()
    {
        $serializer = $this->prepareSerializingContent();
        $xmlContent = $serializer->serialize($this->entries, 'xml');

        return Response::create(
            $xmlContent,
            200,
            array(
                'Content-type' => 'application/xml',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.xml"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        )->send();
    }
    /**
     * Return a Serializer object for producing processes that need it (JSON & XML).
     *
     * @return Serializer
     */
    private function prepareSerializingContent()
    {
        $encoders = array(new XmlEncoder(), new JsonEncoder());
        $normalizers = array(new ObjectNormalizer());
        $normalizers[0]->setIgnoredAttributes(array('user', 'createdAt', 'updatedAt'));

        return new Serializer($normalizers, $encoders);
    }

    /**
     * Return a kind of footer / information for the epub.
     *
     * @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi
     *
     * @return string
     */
    private function getExportInformation($type)
    {
        $info = str_replace('%EXPORT_METHOD%', $type, $this->footerTemplate);

        if ('tcpdf' === $type) {
            return str_replace('%IMAGE%', '<img src="'.$this->logoPath.'" />', $info);
        }

        return str_replace('%IMAGE%', '', $info);
    }
}
Commit	Line	Data
03690d13 TC	1	<?php
	2
	3	namespace Wallabag\CoreBundle\Helper;
	4
	5	use PHPePub\Core\EPub;
	6	use PHPePub\Core\Structure\OPF\DublinCore;
add597ba	7	use Symfony\Component\HttpFoundation\Response;
b3cc1a14 TC	8	use Symfony\Component\Serializer\Serializer;
	9	use Symfony\Component\Serializer\Encoder\XmlEncoder;
	10	use Symfony\Component\Serializer\Encoder\JsonEncoder;
	11	use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
03690d13 TC	12
	13	class EntriesExport
	14	{
add597ba JB	15	private $wallabagUrl;
	16	private $logoPath;
	17	private $title = '';
	18	private $entries = array();
03690d13	19	private $authors = array('wallabag');
add597ba JB	20	private $language = '';
	21	private $tags = array();
	22	private $footerTemplate = '<div style="text-align:center;">
	23	<p>Produced by wallabag with %EXPORT_METHOD%</p>
	24	<p>Please open <a href="https://github.com/wallabag/wallabag/issues">an issue</a> if you have trouble with the display of this E-Book on your device.</p>
	25	</div';
03690d13	26
add597ba JB	27	/**
	28	* @param string $wallabagUrl Wallabag instance url
	29	* @param string $logoPath Path to the logo FROM THE BUNDLE SCOPE
	30	*/
	31	public function __construct($wallabagUrl, $logoPath)
03690d13	32	{
add597ba JB	33	$this->wallabagUrl = $wallabagUrl;
	34	$this->logoPath = $logoPath;
	35	}
	36
	37	/**
	38	* Define entries.
	39	*
	40	* @param array\|Entry $entries An array of entries or one entry
	41	*/
	42	public function setEntries($entries)
	43	{
	44	if (!is_array($entries)) {
	45	$this->language = $entries->getLanguage();
	46	$entries = array($entries);
	47	}
	48
03690d13 TC	49	$this->entries = $entries;
	50
	51	foreach ($entries as $entry) {
	52	$this->tags[] = $entry->getTags();
	53	}
add597ba JB	54
add597ba JB	55	return $this;
03690d13 TC	56	}
	57
	58	/**
	59	* Sets the category of which we want to get articles, or just one entry.
	60	*
	61	* @param string $method Method to get articles
	62	*/
add597ba	63	public function updateTitle($method)
03690d13	64	{
add597ba JB	65	$this->title = $method.' articles';
	66
	67	if ('entry' === $method) {
	68	$this->title = $this->entries[0]->getTitle();
03690d13	69	}
add597ba JB	70
add597ba JB	71	return $this;
03690d13 TC	72	}
	73
	74	/**
	75	* Sets the output format.
	76	*
	77	* @param string $format
	78	*/
	79	public function exportAs($format)
	80	{
add597ba	81	switch ($format) {
03690d13	82	case 'epub':
add597ba	83	return $this->produceEpub();
03690d13 TC	84
03690d13 TC	85	case 'mobi':
add597ba	86	return $this->produceMobi();
03690d13 TC	87
03690d13 TC	88	case 'pdf':
add597ba	89	return $this->producePDF();
03690d13 TC	90
03690d13 TC	91	case 'csv':
add597ba	92	return $this->produceCSV();
b3cc1a14 TC	93
	94	case 'json':
	95	return $this->produceJSON();
	96
	97	case 'xml':
	98	return $this->produceXML();
03690d13	99	}
add597ba JB	100
add597ba JB	101	throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format));
03690d13 TC	102	}
03690d13 TC	103
add597ba JB	104	/**
	105	* Use PHPePub to dump a .epub file.
	106	*/
03690d13 TC	107	private function produceEpub()
	108	{
	109	/*
	110	* Start and End of the book
	111	*/
	112	$content_start =
	113	"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
	114	."<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
	115	.'<head>'
	116	."<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
add597ba	117	."<title>wallabag articles book</title>\n"
03690d13 TC	118	."</head>\n"
	119	."<body>\n";
	120
	121	$bookEnd = "</body>\n</html>\n";
	122
	123	$book = new EPub(EPub::BOOK_VERSION_EPUB3);
	124
	125	/*
	126	* Book metadata
	127	*/
	128
	129	$book->setTitle($this->title);
add597ba JB	130	// Could also be the ISBN number, prefered for published books, or a UUID.
	131	$book->setIdentifier($this->title, EPub::IDENTIFIER_URI);
	132	// Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
	133	$book->setLanguage($this->language);
	134	$book->setDescription('Some articles saved on my wallabag');
03690d13 TC	135
	136	foreach ($this->authors as $author) {
	137	$book->setAuthor($author, $author);
	138	}
	139
add597ba JB	140	// I hope this is a non existant address :)
	141	$book->setPublisher('wallabag', 'wallabag');
	142	// Strictly not needed as the book date defaults to time().
	143	$book->setDate(time());
	144	$book->setSourceURL($this->wallabagUrl);
03690d13 TC	145
	146	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP');
	147	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag');
	148
	149	/*
	150	* Front page
	151	*/
add597ba JB	152	if (file_exists($this->logoPath)) {
	153	$book->setCoverImage('Cover.png', file_get_contents($this->logoPath), 'image/png');
	154	}
03690d13	155
add597ba	156	$book->addChapter('Notices', 'Cover2.html', $content_start.$this->getExportInformation('PHPePub').$bookEnd);
03690d13 TC	157
	158	$book->buildTOC();
	159
	160	/*
	161	* Adding actual entries
	162	*/
	163
add597ba JB	164	// set tags as subjects
	165	foreach ($this->entries as $entry) {
	166	foreach ($this->tags as $tag) {
	167	$book->setSubject($tag['value']);
	168	}
03690d13 TC	169
	170	$chapter = $content_start.$entry->getContent().$bookEnd;
	171	$book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
	172	}
add597ba JB	173
	174	return Response::create(
	175	$book->getBook(),
	176	200,
	177	array(
	178	'Content-Description' => 'File Transfer',
	179	'Content-type' => 'application/epub+zip',
	180	'Content-Disposition' => 'attachment; filename="'.$this->title.'.epub"',
	181	'Content-Transfer-Encoding' => 'binary',
	182	)
	183	)->send();
03690d13 TC	184	}
03690d13 TC	185
add597ba JB	186	/**
	187	* Use PHPMobi to dump a .mobi file.
	188	*/
03690d13 TC	189	private function produceMobi()
	190	{
	191	$mobi = new \MOBI();
	192	$content = new \MOBIFile();
	193
	194	/*
	195	* Book metadata
	196	*/
03690d13 TC	197	$content->set('title', $this->title);
	198	$content->set('author', implode($this->authors));
	199	$content->set('subject', $this->title);
	200
	201	/*
	202	* Front page
	203	*/
add597ba JB	204	$content->appendParagraph($this->getExportInformation('PHPMobi'));
	205	if (file_exists($this->logoPath)) {
	206	$content->appendImage(imagecreatefrompng($this->logoPath));
	207	}
03690d13 TC	208	$content->appendPageBreak();
	209
	210	/*
	211	* Adding actual entries
	212	*/
03690d13 TC	213	foreach ($this->entries as $entry) {
	214	$content->appendChapterTitle($entry->getTitle());
	215	$content->appendParagraph($entry->getContent());
	216	$content->appendPageBreak();
	217	}
	218	$mobi->setContentProvider($content);
	219
	220	// the browser inside Kindle Devices doesn't likes special caracters either, we limit to A-z/0-9
	221	$this->title = preg_replace('/[^A-Za-z0-9\-]/', '', $this->title);
	222
add597ba JB	223	return Response::create(
	224	$mobi->toString(),
	225	200,
	226	array(
	227	'Accept-Ranges' => 'bytes',
	228	'Content-Description' => 'File Transfer',
	229	'Content-type' => 'application/x-mobipocket-ebook',
	230	'Content-Disposition' => 'attachment; filename="'.$this->title.'.mobi"',
	231	'Content-Transfer-Encoding' => 'binary',
	232	)
	233	)->send();
03690d13 TC	234	}
03690d13 TC	235
add597ba JB	236	/**
	237	* Use TCPDF to dump a .pdf file.
	238	*/
03690d13 TC	239	private function producePDF()
	240	{
	241	$pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
	242
	243	/*
	244	* Book metadata
	245	*/
03690d13 TC	246	$pdf->SetCreator(PDF_CREATOR);
	247	$pdf->SetAuthor('wallabag');
	248	$pdf->SetTitle($this->title);
	249	$pdf->SetSubject('Articles via wallabag');
	250	$pdf->SetKeywords('wallabag');
	251
	252	/*
	253	* Front page
	254	*/
03690d13	255	$pdf->AddPage();
add597ba	256	$intro = '<h1>'.$this->title.'</h1>'.$this->getExportInformation('tcpdf');
03690d13 TC	257
	258	$pdf->writeHTMLCell(0, 0, '', '', $intro, 0, 1, 0, true, '', true);
	259
	260	/*
	261	* Adding actual entries
	262	*/
03690d13 TC	263	foreach ($this->entries as $entry) {
	264	foreach ($this->tags as $tag) {
	265	$pdf->SetKeywords($tag['value']);
	266	}
	267
	268	$pdf->AddPage();
	269	$html = '<h1>'.$entry->getTitle().'</h1>';
	270	$html .= $entry->getContent();
add597ba	271
03690d13 TC	272	$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true);
	273	}
	274
	275	// set image scale factor
	276	$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
	277
add597ba JB	278	return Response::create(
	279	$pdf->Output('', 'S'),
	280	200,
	281	array(
	282	'Content-Description' => 'File Transfer',
	283	'Content-type' => 'application/pdf',
	284	'Content-Disposition' => 'attachment; filename="'.$this->title.'.pdf"',
	285	'Content-Transfer-Encoding' => 'binary',
	286	)
	287	)->send();
03690d13 TC	288	}
03690d13 TC	289
add597ba JB	290	/**
	291	* Inspired from CsvFileDumper.
	292	*/
03690d13 TC	293	private function produceCSV()
03690d13 TC	294	{
add597ba JB	295	$delimiter = ';';
	296	$enclosure = '"';
	297	$handle = fopen('php://memory', 'rb+');
03690d13	298
add597ba	299	fputcsv($handle, array('Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language'), $delimiter, $enclosure);
03690d13	300
03690d13	301	foreach ($this->entries as $entry) {
add597ba JB	302	fputcsv(
	303	$handle,
	304	array(
	305	$entry->getTitle(),
	306	$entry->getURL(),
	307	$entry->getContent(),
	308	implode(', ', $entry->getTags()->toArray()),
	309	$entry->getMimetype(),
	310	$entry->getLanguage(),
	311	),
	312	$delimiter,
	313	$enclosure
	314	);
	315	}
	316
	317	rewind($handle);
	318	$output = stream_get_contents($handle);
	319	fclose($handle);
	320
	321	return Response::create(
	322	$output,
	323	200,
	324	array(
	325	'Content-type' => 'application/csv',
	326	'Content-Disposition' => 'attachment; filename="'.$this->title.'.csv"',
	327	'Content-Transfer-Encoding' => 'UTF-8',
	328	)
	329	)->send();
	330	}
	331
b3cc1a14 TC	332	private function produceJSON()
	333	{
	334	$serializer = $this->prepareSerializingContent();
	335	$jsonContent = $serializer->serialize($this->entries, 'json');
	336
	337	return Response::create(
	338	$jsonContent,
	339	200,
	340	array(
	341	'Content-type' => 'application/json',
	342	'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
	343	'Content-Transfer-Encoding' => 'UTF-8',
	344	)
	345	)->send();
	346	}
	347
	348	private function produceXML()
	349	{
	350	$serializer = $this->prepareSerializingContent();
	351	$xmlContent = $serializer->serialize($this->entries, 'xml');
	352
	353	return Response::create(
	354	$xmlContent,
	355	200,
	356	array(
	357	'Content-type' => 'application/xml',
	358	'Content-Disposition' => 'attachment; filename="'.$this->title.'.xml"',
	359	'Content-Transfer-Encoding' => 'UTF-8',
	360	)
	361	)->send();
	362	}
	363	/**
	364	* Return a Serializer object for producing processes that need it (JSON & XML).
	365	*
	366	* @return Serializer
	367	*/
	368	private function prepareSerializingContent()
	369	{
	370	$encoders = array(new XmlEncoder(), new JsonEncoder());
	371	$normalizers = array(new ObjectNormalizer());
	372	$normalizers[0]->setIgnoredAttributes(array('user', 'createdAt', 'updatedAt'));
	373
	374	return new Serializer($normalizers, $encoders);
	375	}
	376
add597ba JB	377	/**
	378	* Return a kind of footer / information for the epub.
	379	*
	380	* @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi
	381	*
	382	* @return string
	383	*/
	384	private function getExportInformation($type)
	385	{
	386	$info = str_replace('%EXPORT_METHOD%', $type, $this->footerTemplate);
	387
	388	if ('tcpdf' === $type) {
	389	return str_replace('%IMAGE%', '<img src="'.$this->logoPath.'" />', $info);
03690d13	390	}
add597ba JB	391
add597ba JB	392	return str_replace('%IMAGE%', '', $info);
03690d13 TC	393	}
03690d13 TC	394	}