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

<?php

namespace Wallabag\CoreBundle\Helper;

use JMS\Serializer;
use JMS\Serializer\SerializationContext;
use JMS\Serializer\SerializerBuilder;
use PHPePub\Core\EPub;
use PHPePub\Core\Structure\OPF\DublinCore;
use Symfony\Component\HttpFoundation\Response;
use Craue\ConfigBundle\Util\Config;

/**
 * This class doesn't have unit test BUT it's fully covered by a functional test with ExportControllerTest.
 */
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 Config $craueConfig CraueConfig instance to get wallabag instance url from database
     * @param string $logoPath    Path to the logo FROM THE BUNDLE SCOPE
     */
    public function __construct(Config $craueConfig, $logoPath)
    {
        $this->wallabagUrl = $craueConfig->get('wallabag_url');
        $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();
            case 'txt':
                return $this->produceTXT();
        }

        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(),
                    // remove new line to avoid crazy results
                    str_replace(array("\r\n", "\r", "\n"), '', $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()
    {
        return Response::create(
            $this->prepareSerializingContent('json'),
            200,
            array(
                'Content-type' => 'application/json',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        )->send();
    }

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

    private function produceTXT()
    {
        $content = '';
        $bar = str_repeat("=",100);
        foreach ($this->entries as $entry) {
            $content .= "\n\n" . $bar . "\n\n" . $entry->getTitle() . "\n\n" . $bar . "\n\n";
            $content .= trim(preg_replace('/\s+/S', ' ', strip_tags($entry->getContent()))) . "\n\n";
        }
        return Response::create(
            $content,
            200,
            array(
                'Content-type' => 'text/plain',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.txt"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        )->send();
    }


    /**
     * Return a Serializer object for producing processes that need it (JSON & XML).
     *
     * @return Serializer
     */
    private function prepareSerializingContent($format)
    {
        $serializer = SerializerBuilder::create()->build();

        return $serializer->serialize(
            $this->entries,
            $format,
            SerializationContext::create()->setGroups(array('entries_for_user'))
        );
    }

    /**
     * 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
619cc453 JB	5	use JMS\Serializer;
	6	use JMS\Serializer\SerializationContext;
	7	use JMS\Serializer\SerializerBuilder;
03690d13 TC	8	use PHPePub\Core\EPub;
03690d13 TC	9	use PHPePub\Core\Structure\OPF\DublinCore;
add597ba	10	use Symfony\Component\HttpFoundation\Response;
63e40f2d	11	use Craue\ConfigBundle\Util\Config;
03690d13	12
cceca9ea JB	13	/**
	14	* This class doesn't have unit test BUT it's fully covered by a functional test with ExportControllerTest.
	15	*/
03690d13 TC	16	class EntriesExport
03690d13 TC	17	{
add597ba JB	18	private $wallabagUrl;
	19	private $logoPath;
	20	private $title = '';
	21	private $entries = array();
03690d13	22	private $authors = array('wallabag');
add597ba JB	23	private $language = '';
	24	private $tags = array();
	25	private $footerTemplate = '<div style="text-align:center;">
	26	<p>Produced by wallabag with %EXPORT_METHOD%</p>
	27	<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>
	28	</div';
03690d13	29
add597ba	30	/**
63e40f2d	31	* @param Config $craueConfig CraueConfig instance to get wallabag instance url from database
add597ba JB	32	* @param string $logoPath Path to the logo FROM THE BUNDLE SCOPE
add597ba JB	33	*/
63e40f2d	34	public function __construct(Config $craueConfig, $logoPath)
03690d13	35	{
63e40f2d	36	$this->wallabagUrl = $craueConfig->get('wallabag_url');
add597ba JB	37	$this->logoPath = $logoPath;
	38	}
	39
	40	/**
	41	* Define entries.
	42	*
	43	* @param array\|Entry $entries An array of entries or one entry
	44	*/
	45	public function setEntries($entries)
	46	{
	47	if (!is_array($entries)) {
	48	$this->language = $entries->getLanguage();
	49	$entries = array($entries);
	50	}
	51
03690d13 TC	52	$this->entries = $entries;
	53
	54	foreach ($entries as $entry) {
	55	$this->tags[] = $entry->getTags();
	56	}
add597ba JB	57
add597ba JB	58	return $this;
03690d13 TC	59	}
	60
	61	/**
	62	* Sets the category of which we want to get articles, or just one entry.
	63	*
	64	* @param string $method Method to get articles
	65	*/
add597ba	66	public function updateTitle($method)
03690d13	67	{
add597ba JB	68	$this->title = $method.' articles';
	69
	70	if ('entry' === $method) {
	71	$this->title = $this->entries[0]->getTitle();
03690d13	72	}
add597ba JB	73
add597ba JB	74	return $this;
03690d13 TC	75	}
	76
	77	/**
	78	* Sets the output format.
	79	*
	80	* @param string $format
	81	*/
	82	public function exportAs($format)
	83	{
add597ba	84	switch ($format) {
03690d13	85	case 'epub':
add597ba	86	return $this->produceEpub();
03690d13 TC	87
03690d13 TC	88	case 'mobi':
add597ba	89	return $this->produceMobi();
03690d13 TC	90
03690d13 TC	91	case 'pdf':
add597ba	92	return $this->producePDF();
03690d13 TC	93
03690d13 TC	94	case 'csv':
add597ba	95	return $this->produceCSV();
b3cc1a14 TC	96
	97	case 'json':
	98	return $this->produceJSON();
	99
	100	case 'xml':
	101	return $this->produceXML();
6c08fb68 TC	102	case 'txt':
6c08fb68 TC	103	return $this->produceTXT();
03690d13	104	}
add597ba JB	105
add597ba JB	106	throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format));
03690d13 TC	107	}
03690d13 TC	108
add597ba JB	109	/**
	110	* Use PHPePub to dump a .epub file.
	111	*/
03690d13 TC	112	private function produceEpub()
	113	{
	114	/*
	115	* Start and End of the book
	116	*/
	117	$content_start =
	118	"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
	119	."<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
	120	.'<head>'
	121	."<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
add597ba	122	."<title>wallabag articles book</title>\n"
03690d13 TC	123	."</head>\n"
	124	."<body>\n";
	125
	126	$bookEnd = "</body>\n</html>\n";
	127
	128	$book = new EPub(EPub::BOOK_VERSION_EPUB3);
	129
	130	/*
	131	* Book metadata
	132	*/
	133
	134	$book->setTitle($this->title);
add597ba JB	135	// Could also be the ISBN number, prefered for published books, or a UUID.
	136	$book->setIdentifier($this->title, EPub::IDENTIFIER_URI);
	137	// 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.
	138	$book->setLanguage($this->language);
	139	$book->setDescription('Some articles saved on my wallabag');
03690d13 TC	140
	141	foreach ($this->authors as $author) {
	142	$book->setAuthor($author, $author);
	143	}
	144
add597ba JB	145	// I hope this is a non existant address :)
	146	$book->setPublisher('wallabag', 'wallabag');
	147	// Strictly not needed as the book date defaults to time().
	148	$book->setDate(time());
	149	$book->setSourceURL($this->wallabagUrl);
03690d13 TC	150
	151	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP');
	152	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag');
	153
	154	/*
	155	* Front page
	156	*/
add597ba JB	157	if (file_exists($this->logoPath)) {
	158	$book->setCoverImage('Cover.png', file_get_contents($this->logoPath), 'image/png');
	159	}
03690d13	160
add597ba	161	$book->addChapter('Notices', 'Cover2.html', $content_start.$this->getExportInformation('PHPePub').$bookEnd);
03690d13 TC	162
	163	$book->buildTOC();
	164
	165	/*
	166	* Adding actual entries
	167	*/
	168
add597ba JB	169	// set tags as subjects
	170	foreach ($this->entries as $entry) {
	171	foreach ($this->tags as $tag) {
	172	$book->setSubject($tag['value']);
	173	}
03690d13 TC	174
	175	$chapter = $content_start.$entry->getContent().$bookEnd;
	176	$book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
	177	}
add597ba JB	178
	179	return Response::create(
	180	$book->getBook(),
	181	200,
	182	array(
	183	'Content-Description' => 'File Transfer',
	184	'Content-type' => 'application/epub+zip',
	185	'Content-Disposition' => 'attachment; filename="'.$this->title.'.epub"',
	186	'Content-Transfer-Encoding' => 'binary',
	187	)
	188	)->send();
03690d13 TC	189	}
03690d13 TC	190
add597ba JB	191	/**
	192	* Use PHPMobi to dump a .mobi file.
	193	*/
03690d13 TC	194	private function produceMobi()
	195	{
	196	$mobi = new \MOBI();
	197	$content = new \MOBIFile();
	198
	199	/*
	200	* Book metadata
	201	*/
03690d13 TC	202	$content->set('title', $this->title);
	203	$content->set('author', implode($this->authors));
	204	$content->set('subject', $this->title);
	205
	206	/*
	207	* Front page
	208	*/
add597ba JB	209	$content->appendParagraph($this->getExportInformation('PHPMobi'));
	210	if (file_exists($this->logoPath)) {
	211	$content->appendImage(imagecreatefrompng($this->logoPath));
	212	}
03690d13 TC	213	$content->appendPageBreak();
	214
	215	/*
	216	* Adding actual entries
	217	*/
03690d13 TC	218	foreach ($this->entries as $entry) {
	219	$content->appendChapterTitle($entry->getTitle());
	220	$content->appendParagraph($entry->getContent());
	221	$content->appendPageBreak();
	222	}
	223	$mobi->setContentProvider($content);
	224
	225	// the browser inside Kindle Devices doesn't likes special caracters either, we limit to A-z/0-9
	226	$this->title = preg_replace('/[^A-Za-z0-9\-]/', '', $this->title);
	227
add597ba JB	228	return Response::create(
	229	$mobi->toString(),
	230	200,
	231	array(
	232	'Accept-Ranges' => 'bytes',
	233	'Content-Description' => 'File Transfer',
	234	'Content-type' => 'application/x-mobipocket-ebook',
	235	'Content-Disposition' => 'attachment; filename="'.$this->title.'.mobi"',
	236	'Content-Transfer-Encoding' => 'binary',
	237	)
	238	)->send();
03690d13 TC	239	}
03690d13 TC	240
add597ba JB	241	/**
	242	* Use TCPDF to dump a .pdf file.
	243	*/
03690d13 TC	244	private function producePDF()
	245	{
	246	$pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
	247
	248	/*
	249	* Book metadata
	250	*/
03690d13 TC	251	$pdf->SetCreator(PDF_CREATOR);
	252	$pdf->SetAuthor('wallabag');
	253	$pdf->SetTitle($this->title);
	254	$pdf->SetSubject('Articles via wallabag');
	255	$pdf->SetKeywords('wallabag');
	256
	257	/*
	258	* Front page
	259	*/
03690d13	260	$pdf->AddPage();
add597ba	261	$intro = '<h1>'.$this->title.'</h1>'.$this->getExportInformation('tcpdf');
03690d13 TC	262
	263	$pdf->writeHTMLCell(0, 0, '', '', $intro, 0, 1, 0, true, '', true);
	264
	265	/*
	266	* Adding actual entries
	267	*/
03690d13 TC	268	foreach ($this->entries as $entry) {
	269	foreach ($this->tags as $tag) {
	270	$pdf->SetKeywords($tag['value']);
	271	}
	272
	273	$pdf->AddPage();
	274	$html = '<h1>'.$entry->getTitle().'</h1>';
	275	$html .= $entry->getContent();
add597ba	276
03690d13 TC	277	$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true);
	278	}
	279
	280	// set image scale factor
	281	$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
	282
add597ba JB	283	return Response::create(
	284	$pdf->Output('', 'S'),
	285	200,
	286	array(
	287	'Content-Description' => 'File Transfer',
	288	'Content-type' => 'application/pdf',
	289	'Content-Disposition' => 'attachment; filename="'.$this->title.'.pdf"',
	290	'Content-Transfer-Encoding' => 'binary',
	291	)
	292	)->send();
03690d13 TC	293	}
03690d13 TC	294
add597ba JB	295	/**
	296	* Inspired from CsvFileDumper.
	297	*/
03690d13 TC	298	private function produceCSV()
03690d13 TC	299	{
add597ba JB	300	$delimiter = ';';
	301	$enclosure = '"';
	302	$handle = fopen('php://memory', 'rb+');
03690d13	303
add597ba	304	fputcsv($handle, array('Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language'), $delimiter, $enclosure);
03690d13	305
03690d13	306	foreach ($this->entries as $entry) {
add597ba JB	307	fputcsv(
	308	$handle,
	309	array(
	310	$entry->getTitle(),
	311	$entry->getURL(),
cceca9ea JB	312	// remove new line to avoid crazy results
cceca9ea JB	313	str_replace(array("\r\n", "\r", "\n"), '', $entry->getContent()),
add597ba JB	314	implode(', ', $entry->getTags()->toArray()),
	315	$entry->getMimetype(),
	316	$entry->getLanguage(),
	317	),
	318	$delimiter,
	319	$enclosure
	320	);
	321	}
	322
	323	rewind($handle);
	324	$output = stream_get_contents($handle);
	325	fclose($handle);
	326
	327	return Response::create(
	328	$output,
	329	200,
	330	array(
	331	'Content-type' => 'application/csv',
	332	'Content-Disposition' => 'attachment; filename="'.$this->title.'.csv"',
	333	'Content-Transfer-Encoding' => 'UTF-8',
	334	)
	335	)->send();
	336	}
	337
b3cc1a14 TC	338	private function produceJSON()
b3cc1a14 TC	339	{
b3cc1a14	340	return Response::create(
8ac95cbf	341	$this->prepareSerializingContent('json'),
b3cc1a14 TC	342	200,
	343	array(
	344	'Content-type' => 'application/json',
	345	'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
	346	'Content-Transfer-Encoding' => 'UTF-8',
	347	)
	348	)->send();
	349	}
	350
	351	private function produceXML()
	352	{
b3cc1a14	353	return Response::create(
8ac95cbf	354	$this->prepareSerializingContent('xml'),
b3cc1a14 TC	355	200,
	356	array(
	357	'Content-type' => 'application/xml',
	358	'Content-Disposition' => 'attachment; filename="'.$this->title.'.xml"',
	359	'Content-Transfer-Encoding' => 'UTF-8',
	360	)
	361	)->send();
	362	}
8ac95cbf	363
6c08fb68 TC	364	private function produceTXT()
	365	{
	366	$content = '';
f1611224	367	$bar = str_repeat("=",100);
6c08fb68	368	foreach ($this->entries as $entry) {
f1611224	369	$content .= "\n\n" . $bar . "\n\n" . $entry->getTitle() . "\n\n" . $bar . "\n\n";
365a3898	370	$content .= trim(preg_replace('/\s+/S', ' ', strip_tags($entry->getContent()))) . "\n\n";
6c08fb68 TC	371	}
	372	return Response::create(
	373	$content,
	374	200,
	375	array(
	376	'Content-type' => 'text/plain',
	377	'Content-Disposition' => 'attachment; filename="'.$this->title.'.txt"',
	378	'Content-Transfer-Encoding' => 'UTF-8',
	379	)
	380	)->send();
	381	}
	382
	383
b3cc1a14 TC	384	/**
	385	* Return a Serializer object for producing processes that need it (JSON & XML).
	386	*
	387	* @return Serializer
	388	*/
8ac95cbf	389	private function prepareSerializingContent($format)
b3cc1a14	390	{
268e9e72	391	$serializer = SerializerBuilder::create()->build();
b3cc1a14	392
cceca9ea JB	393	return $serializer->serialize(
	394	$this->entries,
	395	$format,
	396	SerializationContext::create()->setGroups(array('entries_for_user'))
	397	);
b3cc1a14 TC	398	}
b3cc1a14 TC	399
add597ba JB	400	/**
	401	* Return a kind of footer / information for the epub.
	402	*
	403	* @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi
	404	*
	405	* @return string
	406	*/
	407	private function getExportInformation($type)
	408	{
	409	$info = str_replace('%EXPORT_METHOD%', $type, $this->footerTemplate);
	410
	411	if ('tcpdf' === $type) {
	412	return str_replace('%IMAGE%', '<img src="'.$this->logoPath.'" />', $info);
03690d13	413	}
add597ba JB	414
add597ba JB	415	return str_replace('%IMAGE%', '', $info);
03690d13 TC	416	}
03690d13 TC	417	}