tikiwiki/packages/tiki-pkg-mpdf/setasign/fpdi/local-tests/get-info.php

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2023-11-20 21:52:04 +01:00
<?php
use setasign\Fpdi\Fpdi;
use setasign\Fpdi\PdfParser\Type\PdfDictionary;
use setasign\Fpdi\PdfParser\Type\PdfHexString;
use setasign\Fpdi\PdfParser\Type\PdfName;
use setasign\Fpdi\PdfParser\Type\PdfString;
use setasign\Fpdi\PdfParser\Type\PdfNumeric;
use setasign\Fpdi\PdfParser\Type\PdfBoolean;
use setasign\Fpdi\PdfParser\Type\PdfType;
require_once '../vendor/autoload.php';
$GLOBALS['paths'] = [
__DIR__ . '/../tests/_files/',
'/var/www/privatewebs/jan.slabon/default/html/pdfs/'
];
require 'filelist.php';
class FpdiWithInfo extends Fpdi
{
/**
* Returns the data of the Info dictionary (only scalar values are returned).
*
* @return array
* @throws \setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException
* @throws \setasign\Fpdi\PdfParser\PdfParserException
* @throws \setasign\Fpdi\PdfParser\Type\PdfTypeException
*/
public function getInfoFromSourceFile()
{
if ($this->currentReaderId === null) {
throw new \BadMethodCallException('No reader initiated. Call setSourceFile() first.');
}
$reader = $this->getPdfReader($this->currentReaderId);
$parser = $reader->getParser();
$trailer = $reader->getParser()->getCrossReference()->getTrailer();
$info = PdfType::resolve(PdfDictionary::get($trailer, 'Info'), $parser);
$result = [];
if ($info instanceof PdfDictionary) {
foreach ($info->value as $key => $value) {
$value = PdfType::resolve($value, $parser);
switch (get_class($value)) {
case PdfString::class:
$result[$key] = self::pdfStringToUtf8(PdfString::unescape($value->value));
break;
case PdfHexString::class:
$result[$key] = self::pdfStringToUtf8(\hex2bin($value->value));
break;
case PdfName::class:
$result[$key] = PdfName::unescape($value->value);
break;
case PdfNumeric::class:
case PdfBoolean::class:
$result[$key] = $value->value;
break;
}
}
}
return $result;
}
/**
* Converts a PDF string to UTF-8 encoding.
*
* @param string $string
* @return false|string
*/
protected static function pdfStringToUtf8($string)
{
static $table;
if (strpos($string, "\xFE\xFF") === 0 || strpos($string, "\xFF\xFE") === 0) {
return \iconv('UTF-16', 'UTF-8', $string);
}
if ($table === null) {
$table = \json_decode(file_get_contents('assets/pdfdoc-encoding.json'), true);
}
$result = '';
for ($pos = 0, $len = strlen($string); $pos < $len; $pos++) {
$result .= $table[ord($string[$pos])];
}
return $result;
}
}
$files = $_GET['f'];
if (!is_array($files)) {
$files = [$files];
}
foreach ($files as $file) {
$pdf = new FpdiWithInfo();
$pdf->setSourceFile($file);
echo "<pre>";
var_dump($pdf->getInfoFromSourceFile());
echo "</pre>";
}