diff options
Diffstat (limited to 'vendor/setasign/fpdi/src')
48 files changed, 6299 insertions, 0 deletions
diff --git a/vendor/setasign/fpdi/src/FpdfTpl.php b/vendor/setasign/fpdi/src/FpdfTpl.php new file mode 100644 index 0000000..4b93f53 --- /dev/null +++ b/vendor/setasign/fpdi/src/FpdfTpl.php @@ -0,0 +1,21 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +/** + * Class FpdfTpl + * + * This class adds a templating feature to FPDF. + */ +class FpdfTpl extends \FPDF +{ + use FpdfTplTrait; +} diff --git a/vendor/setasign/fpdi/src/FpdfTplTrait.php b/vendor/setasign/fpdi/src/FpdfTplTrait.php new file mode 100644 index 0000000..d2da97c --- /dev/null +++ b/vendor/setasign/fpdi/src/FpdfTplTrait.php @@ -0,0 +1,470 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +/** + * Trait FpdfTplTrait + * + * This class adds a templating feature to tFPDF. + */ +trait FpdfTplTrait +{ + /** + * Data of all created templates. + * + * @var array + */ + protected $templates = []; + + /** + * The template id for the currently created template. + * + * @var null|int + */ + protected $currentTemplateId; + + /** + * A counter for template ids. + * + * @var int + */ + protected $templateId = 0; + + /** + * Set the page format of the current page. + * + * @param array $size An array with two values defining the size. + * @param string $orientation "L" for landscape, "P" for portrait. + * @throws \BadMethodCallException + */ + public function setPageFormat($size, $orientation) + { + if ($this->currentTemplateId !== null) { + throw new \BadMethodCallException('The page format cannot be changed when writing to a template.'); + } + + if (!\in_array($orientation, ['P', 'L'], true)) { + throw new \InvalidArgumentException(\sprintf( + 'Invalid page orientation "%s"! Only "P" and "L" are allowed!', + $orientation + )); + } + + $size = $this->_getpagesize($size); + + if ( + $orientation != $this->CurOrientation + || $size[0] != $this->CurPageSize[0] + || $size[1] != $this->CurPageSize[1] + ) { + // New size or orientation + if ($orientation === 'P') { + $this->w = $size[0]; + $this->h = $size[1]; + } else { + $this->w = $size[1]; + $this->h = $size[0]; + } + $this->wPt = $this->w * $this->k; + $this->hPt = $this->h * $this->k; + $this->PageBreakTrigger = $this->h - $this->bMargin; + $this->CurOrientation = $orientation; + $this->CurPageSize = $size; + + $this->PageInfo[$this->page]['size'] = array($this->wPt, $this->hPt); + } + } + + /** + * Draws a template onto the page or another template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param array|float|int $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size + * @see FpdfTplTrait::getTemplateSize() + */ + public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + if (!isset($this->templates[$tpl])) { + throw new \InvalidArgumentException('Template does not exist!'); + } + + if (\is_array($x)) { + unset($x['tpl']); + \extract($x, EXTR_IF_EXISTS); + /** @noinspection NotOptimalIfConditionsInspection */ + /** @noinspection PhpConditionAlreadyCheckedInspection */ + if (\is_array($x)) { + $x = 0; + } + } + + $template = $this->templates[$tpl]; + + $originalSize = $this->getTemplateSize($tpl); + $newSize = $this->getTemplateSize($tpl, $width, $height); + if ($adjustPageSize) { + $this->setPageFormat($newSize, $newSize['orientation']); + } + + $this->_out( + // reset standard values, translate and scale + \sprintf( + 'q 0 J 1 w 0 j 0 G 0 g %.4F 0 0 %.4F %.4F %.4F cm /%s Do Q', + ($newSize['width'] / $originalSize['width']), + ($newSize['height'] / $originalSize['height']), + $x * $this->k, + ($this->h - $y - $newSize['height']) * $this->k, + $template['id'] + ) + ); + + return $newSize; + } + + /** + * Get the size of a template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P) + */ + public function getTemplateSize($tpl, $width = null, $height = null) + { + if (!isset($this->templates[$tpl])) { + return false; + } + + if ($width === null && $height === null) { + $width = $this->templates[$tpl]['width']; + $height = $this->templates[$tpl]['height']; + } elseif ($width === null) { + $width = $height * $this->templates[$tpl]['width'] / $this->templates[$tpl]['height']; + } + + if ($height === null) { + $height = $width * $this->templates[$tpl]['height'] / $this->templates[$tpl]['width']; + } + + if ($height <= 0. || $width <= 0.) { + throw new \InvalidArgumentException('Width or height parameter needs to be larger than zero.'); + } + + return [ + 'width' => $width, + 'height' => $height, + 0 => $width, + 1 => $height, + 'orientation' => $width > $height ? 'L' : 'P' + ]; + } + + /** + * Begins a new template. + * + * @param float|int|null $width The width of the template. If null, the current page width is used. + * @param float|int|null $height The height of the template. If null, the current page height is used. + * @param bool $groupXObject Define the form XObject as a group XObject to support transparency (if used). + * @return int A template identifier. + */ + public function beginTemplate($width = null, $height = null, $groupXObject = false) + { + if ($width === null) { + $width = $this->w; + } + + if ($height === null) { + $height = $this->h; + } + + $templateId = $this->getNextTemplateId(); + + // initiate buffer with current state of FPDF + $buffer = "2 J\n" + . \sprintf('%.2F w', $this->LineWidth * $this->k) . "\n"; + + if ($this->FontFamily) { + $buffer .= \sprintf("BT /F%d %.2F Tf ET\n", $this->CurrentFont['i'], $this->FontSizePt); + } + + if ($this->DrawColor !== '0 G') { + $buffer .= $this->DrawColor . "\n"; + } + if ($this->FillColor !== '0 g') { + $buffer .= $this->FillColor . "\n"; + } + + if ($groupXObject && \version_compare('1.4', $this->PDFVersion, '>')) { + $this->PDFVersion = '1.4'; + } + + $this->templates[$templateId] = [ + 'objectNumber' => null, + 'id' => 'TPL' . $templateId, + 'buffer' => $buffer, + 'width' => $width, + 'height' => $height, + 'groupXObject' => $groupXObject, + 'state' => [ + 'x' => $this->x, + 'y' => $this->y, + 'AutoPageBreak' => $this->AutoPageBreak, + 'bMargin' => $this->bMargin, + 'tMargin' => $this->tMargin, + 'lMargin' => $this->lMargin, + 'rMargin' => $this->rMargin, + 'h' => $this->h, + 'w' => $this->w, + 'FontFamily' => $this->FontFamily, + 'FontStyle' => $this->FontStyle, + 'FontSizePt' => $this->FontSizePt, + 'FontSize' => $this->FontSize, + 'underline' => $this->underline, + 'TextColor' => $this->TextColor, + 'DrawColor' => $this->DrawColor, + 'FillColor' => $this->FillColor, + 'ColorFlag' => $this->ColorFlag + ] + ]; + + $this->SetAutoPageBreak(false); + $this->currentTemplateId = $templateId; + + $this->h = $height; + $this->w = $width; + + $this->SetXY($this->lMargin, $this->tMargin); + $this->SetRightMargin($this->w - $width + $this->rMargin); + + return $templateId; + } + + /** + * Ends a template. + * + * @return bool|int|null A template identifier. + */ + public function endTemplate() + { + if ($this->currentTemplateId === null) { + return false; + } + + $templateId = $this->currentTemplateId; + $template = $this->templates[$templateId]; + + $state = $template['state']; + $this->SetXY($state['x'], $state['y']); + $this->tMargin = $state['tMargin']; + $this->lMargin = $state['lMargin']; + $this->rMargin = $state['rMargin']; + $this->h = $state['h']; + $this->w = $state['w']; + $this->SetAutoPageBreak($state['AutoPageBreak'], $state['bMargin']); + + $this->FontFamily = $state['FontFamily']; + $this->FontStyle = $state['FontStyle']; + $this->FontSizePt = $state['FontSizePt']; + $this->FontSize = $state['FontSize']; + + $this->TextColor = $state['TextColor']; + $this->DrawColor = $state['DrawColor']; + $this->FillColor = $state['FillColor']; + $this->ColorFlag = $state['ColorFlag']; + + $this->underline = $state['underline']; + + $fontKey = $this->FontFamily . $this->FontStyle; + if ($fontKey) { + $this->CurrentFont =& $this->fonts[$fontKey]; + } else { + unset($this->CurrentFont); + } + + $this->currentTemplateId = null; + + return $templateId; + } + + /** + * Get the next template id. + * + * @return int + */ + protected function getNextTemplateId() + { + return $this->templateId++; + } + + /* overwritten FPDF methods: */ + + /** + * @inheritdoc + */ + public function AddPage($orientation = '', $size = '', $rotation = 0) + { + if ($this->currentTemplateId !== null) { + throw new \BadMethodCallException('Pages cannot be added when writing to a template.'); + } + parent::AddPage($orientation, $size, $rotation); + } + + /** + * @inheritdoc + */ + public function Link($x, $y, $w, $h, $link) + { + if ($this->currentTemplateId !== null) { + throw new \BadMethodCallException('Links cannot be set when writing to a template.'); + } + parent::Link($x, $y, $w, $h, $link); + } + + /** + * @inheritdoc + */ + public function SetLink($link, $y = 0, $page = -1) + { + if ($this->currentTemplateId !== null) { + throw new \BadMethodCallException('Links cannot be set when writing to a template.'); + } + return parent::SetLink($link, $y, $page); + } + + /** + * @inheritdoc + */ + public function SetDrawColor($r, $g = null, $b = null) + { + parent::SetDrawColor($r, $g, $b); + if ($this->page === 0 && $this->currentTemplateId !== null) { + $this->_out($this->DrawColor); + } + } + + /** + * @inheritdoc + */ + public function SetFillColor($r, $g = null, $b = null) + { + parent::SetFillColor($r, $g, $b); + if ($this->page === 0 && $this->currentTemplateId !== null) { + $this->_out($this->FillColor); + } + } + + /** + * @inheritdoc + */ + public function SetLineWidth($width) + { + parent::SetLineWidth($width); + if ($this->page === 0 && $this->currentTemplateId !== null) { + $this->_out(\sprintf('%.2F w', $width * $this->k)); + } + } + + /** + * @inheritdoc + */ + public function SetFont($family, $style = '', $size = 0) + { + parent::SetFont($family, $style, $size); + if ($this->page === 0 && $this->currentTemplateId !== null) { + $this->_out(\sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt)); + } + } + + /** + * @inheritdoc + */ + public function SetFontSize($size) + { + parent::SetFontSize($size); + if ($this->page === 0 && $this->currentTemplateId !== null) { + $this->_out(sprintf('BT /F%d %.2F Tf ET', $this->CurrentFont['i'], $this->FontSizePt)); + } + } + + /** + * @inheritdoc + */ + protected function _putimages() + { + parent::_putimages(); + + foreach ($this->templates as $key => $template) { + $this->_newobj(); + $this->templates[$key]['objectNumber'] = $this->n; + + $this->_put('<</Type /XObject /Subtype /Form /FormType 1'); + $this->_put(\sprintf( + '/BBox[0 0 %.2F %.2F]', + $template['width'] * $this->k, + $template['height'] * $this->k + )); + $this->_put('/Resources 2 0 R'); // default resources dictionary of FPDF + + if ($this->compress) { + $buffer = \gzcompress($template['buffer']); + $this->_put('/Filter/FlateDecode'); + } else { + $buffer = $template['buffer']; + } + + $this->_put('/Length ' . \strlen($buffer)); + + if ($template['groupXObject']) { + $this->_put('/Group <</Type/Group/S/Transparency>>'); + } + + $this->_put('>>'); + $this->_putstream($buffer); + $this->_put('endobj'); + } + } + + /** + * @inheritdoc + */ + protected function _putxobjectdict() + { + foreach ($this->templates as $key => $template) { + $this->_put('/' . $template['id'] . ' ' . $template['objectNumber'] . ' 0 R'); + } + + parent::_putxobjectdict(); + } + + /** + * @inheritdoc + */ + public function _out($s) + { + if ($this->currentTemplateId !== null) { + $this->templates[$this->currentTemplateId]['buffer'] .= $s . "\n"; + } else { + parent::_out($s); + } + } +} diff --git a/vendor/setasign/fpdi/src/Fpdi.php b/vendor/setasign/fpdi/src/Fpdi.php new file mode 100644 index 0000000..157f87c --- /dev/null +++ b/vendor/setasign/fpdi/src/Fpdi.php @@ -0,0 +1,153 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfNull; + +/** + * Class Fpdi + * + * This class let you import pages of existing PDF documents into a reusable structure for FPDF. + */ +class Fpdi extends FpdfTpl +{ + use FpdiTrait; + + /** + * FPDI version + * + * @string + */ + const VERSION = '2.3.6'; + + protected function _enddoc() + { + parent::_enddoc(); + $this->cleanUp(); + } + + /** + * Draws an imported page or a template onto the page or another template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size + * @see Fpdi::getTemplateSize() + */ + public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + if (isset($this->importedPages[$tpl])) { + $size = $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize); + if ($this->currentTemplateId !== null) { + $this->templates[$this->currentTemplateId]['resources']['templates']['importedPages'][$tpl] = $tpl; + } + return $size; + } + + return parent::useTemplate($tpl, $x, $y, $width, $height, $adjustPageSize); + } + + /** + * Get the size of an imported page or template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P) + */ + public function getTemplateSize($tpl, $width = null, $height = null) + { + $size = parent::getTemplateSize($tpl, $width, $height); + if ($size === false) { + return $this->getImportedPageSize($tpl, $width, $height); + } + + return $size; + } + + /** + * @inheritdoc + * @throws CrossReferenceException + * @throws PdfParserException + */ + protected function _putimages() + { + $this->currentReaderId = null; + parent::_putimages(); + + foreach ($this->importedPages as $key => $pageData) { + $this->_newobj(); + $this->importedPages[$key]['objectNumber'] = $this->n; + $this->currentReaderId = $pageData['readerId']; + $this->writePdfType($pageData['stream']); + $this->_put('endobj'); + } + + foreach (\array_keys($this->readers) as $readerId) { + $parser = $this->getPdfReader($readerId)->getParser(); + $this->currentReaderId = $readerId; + + while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) { + try { + $object = $parser->getIndirectObject($objectNumber); + } catch (CrossReferenceException $e) { + if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) { + $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull()); + } else { + throw $e; + } + } + + $this->writePdfType($object); + } + } + + $this->currentReaderId = null; + } + + /** + * @inheritdoc + */ + protected function _putxobjectdict() + { + foreach ($this->importedPages as $key => $pageData) { + $this->_put('/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R'); + } + + parent::_putxobjectdict(); + } + + /** + * @inheritdoc + */ + protected function _put($s, $newLine = true) + { + if ($newLine) { + $this->buffer .= $s . "\n"; + } else { + $this->buffer .= $s; + } + } +} diff --git a/vendor/setasign/fpdi/src/FpdiException.php b/vendor/setasign/fpdi/src/FpdiException.php new file mode 100644 index 0000000..2286667 --- /dev/null +++ b/vendor/setasign/fpdi/src/FpdiException.php @@ -0,0 +1,18 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +/** + * Base exception class for the FPDI package. + */ +class FpdiException extends \Exception +{ +} diff --git a/vendor/setasign/fpdi/src/FpdiTrait.php b/vendor/setasign/fpdi/src/FpdiTrait.php new file mode 100644 index 0000000..3b29857 --- /dev/null +++ b/vendor/setasign/fpdi/src/FpdiTrait.php @@ -0,0 +1,559 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\Filter\FilterException; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\StreamReader; +use setasign\Fpdi\PdfParser\Type\PdfArray; +use setasign\Fpdi\PdfParser\Type\PdfBoolean; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfHexString; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference; +use setasign\Fpdi\PdfParser\Type\PdfName; +use setasign\Fpdi\PdfParser\Type\PdfNull; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfStream; +use setasign\Fpdi\PdfParser\Type\PdfString; +use setasign\Fpdi\PdfParser\Type\PdfToken; +use setasign\Fpdi\PdfParser\Type\PdfType; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; +use setasign\Fpdi\PdfReader\PageBoundaries; +use setasign\Fpdi\PdfReader\PdfReader; +use setasign\Fpdi\PdfReader\PdfReaderException; +use /* This namespace/class is used by the commercial FPDI PDF-Parser add-on. */ + /** @noinspection PhpUndefinedClassInspection */ + /** @noinspection PhpUndefinedNamespaceInspection */ + setasign\FpdiPdfParser\PdfParser\PdfParser as FpdiPdfParser; + +/** + * The FpdiTrait + * + * This trait offers the core functionalities of FPDI. By passing them to a trait we can reuse it with e.g. TCPDF in a + * very easy way. + */ +trait FpdiTrait +{ + /** + * The pdf reader instances. + * + * @var PdfReader[] + */ + protected $readers = []; + + /** + * Instances created internally. + * + * @var array + */ + protected $createdReaders = []; + + /** + * The current reader id. + * + * @var string|null + */ + protected $currentReaderId; + + /** + * Data of all imported pages. + * + * @var array + */ + protected $importedPages = []; + + /** + * A map from object numbers of imported objects to new assigned object numbers by FPDF. + * + * @var array + */ + protected $objectMap = []; + + /** + * An array with information about objects, which needs to be copied to the resulting document. + * + * @var array + */ + protected $objectsToCopy = []; + + /** + * Release resources and file handles. + * + * This method is called internally when the document is created successfully. By default it only cleans up + * stream reader instances which were created internally. + * + * @param bool $allReaders + */ + public function cleanUp($allReaders = false) + { + $readers = $allReaders ? array_keys($this->readers) : $this->createdReaders; + foreach ($readers as $id) { + $this->readers[$id]->getParser()->getStreamReader()->cleanUp(); + unset($this->readers[$id]); + } + + $this->createdReaders = []; + } + + /** + * Set the minimal PDF version. + * + * @param string $pdfVersion + */ + protected function setMinPdfVersion($pdfVersion) + { + if (\version_compare($pdfVersion, $this->PDFVersion, '>')) { + $this->PDFVersion = $pdfVersion; + } + } + + /** @noinspection PhpUndefinedClassInspection */ + /** + * Get a new pdf parser instance. + * + * @param StreamReader $streamReader + * @return PdfParser|FpdiPdfParser + */ + protected function getPdfParserInstance(StreamReader $streamReader) + { + // note: if you get an exception here - turn off errors/warnings on not found for your autoloader. + // psr-4 (https://www.php-fig.org/psr/psr-4/) says: Autoloader implementations MUST NOT throw + // exceptions, MUST NOT raise errors of any level, and SHOULD NOT return a value. + /** @noinspection PhpUndefinedClassInspection */ + if (\class_exists(FpdiPdfParser::class)) { + /** @noinspection PhpUndefinedClassInspection */ + return new FpdiPdfParser($streamReader); + } + + return new PdfParser($streamReader); + } + + /** + * Get an unique reader id by the $file parameter. + * + * @param string|resource|PdfReader|StreamReader $file An open file descriptor, a path to a file, a PdfReader + * instance or a StreamReader instance. + * @return string + */ + protected function getPdfReaderId($file) + { + if (\is_resource($file)) { + $id = (string) $file; + } elseif (\is_string($file)) { + $id = \realpath($file); + if ($id === false) { + $id = $file; + } + } elseif (\is_object($file)) { + $id = \spl_object_hash($file); + } else { + throw new \InvalidArgumentException( + \sprintf('Invalid type in $file parameter (%s)', \gettype($file)) + ); + } + + /** @noinspection OffsetOperationsInspection */ + if (isset($this->readers[$id])) { + return $id; + } + + if (\is_resource($file)) { + $streamReader = new StreamReader($file); + } elseif (\is_string($file)) { + $streamReader = StreamReader::createByFile($file); + $this->createdReaders[] = $id; + } else { + $streamReader = $file; + } + + $reader = new PdfReader($this->getPdfParserInstance($streamReader)); + /** @noinspection OffsetOperationsInspection */ + $this->readers[$id] = $reader; + + return $id; + } + + /** + * Get a pdf reader instance by its id. + * + * @param string $id + * @return PdfReader + */ + protected function getPdfReader($id) + { + if (isset($this->readers[$id])) { + return $this->readers[$id]; + } + + throw new \InvalidArgumentException( + \sprintf('No pdf reader with the given id (%s) exists.', $id) + ); + } + + /** + * Set the source PDF file. + * + * @param string|resource|StreamReader $file Path to the file or a stream resource or a StreamReader instance. + * @return int The page count of the PDF document. + * @throws PdfParserException + */ + public function setSourceFile($file) + { + $this->currentReaderId = $this->getPdfReaderId($file); + $this->objectsToCopy[$this->currentReaderId] = []; + + $reader = $this->getPdfReader($this->currentReaderId); + $this->setMinPdfVersion($reader->getPdfVersion()); + + return $reader->getPageCount(); + } + + /** + * Imports a page. + * + * @param int $pageNumber The page number. + * @param string $box The page boundary to import. Default set to PageBoundaries::CROP_BOX. + * @param bool $groupXObject Define the form XObject as a group XObject to support transparency (if used). + * @return string A unique string identifying the imported page. + * @throws CrossReferenceException + * @throws FilterException + * @throws PdfParserException + * @throws PdfTypeException + * @throws PdfReaderException + * @see PageBoundaries + */ + public function importPage($pageNumber, $box = PageBoundaries::CROP_BOX, $groupXObject = true) + { + if (null === $this->currentReaderId) { + throw new \BadMethodCallException('No reader initiated. Call setSourceFile() first.'); + } + + $pageId = $this->currentReaderId; + + $pageNumber = (int)$pageNumber; + $pageId .= '|' . $pageNumber . '|' . ($groupXObject ? '1' : '0'); + + // for backwards compatibility with FPDI 1 + $box = \ltrim($box, '/'); + if (!PageBoundaries::isValidName($box)) { + throw new \InvalidArgumentException( + \sprintf('Box name is invalid: "%s"', $box) + ); + } + + $pageId .= '|' . $box; + + if (isset($this->importedPages[$pageId])) { + return $pageId; + } + + $reader = $this->getPdfReader($this->currentReaderId); + $page = $reader->getPage($pageNumber); + + $bbox = $page->getBoundary($box); + if ($bbox === false) { + throw new PdfReaderException( + \sprintf("Page doesn't have a boundary box (%s).", $box), + PdfReaderException::MISSING_DATA + ); + } + + $dict = new PdfDictionary(); + $dict->value['Type'] = PdfName::create('XObject'); + $dict->value['Subtype'] = PdfName::create('Form'); + $dict->value['FormType'] = PdfNumeric::create(1); + $dict->value['BBox'] = $bbox->toPdfArray(); + + if ($groupXObject) { + $this->setMinPdfVersion('1.4'); + $dict->value['Group'] = PdfDictionary::create([ + 'Type' => PdfName::create('Group'), + 'S' => PdfName::create('Transparency') + ]); + } + + $resources = $page->getAttribute('Resources'); + if ($resources !== null) { + $dict->value['Resources'] = $resources; + } + + list($width, $height) = $page->getWidthAndHeight($box); + + $a = 1; + $b = 0; + $c = 0; + $d = 1; + $e = -$bbox->getLlx(); + $f = -$bbox->getLly(); + + $rotation = $page->getRotation(); + + if ($rotation !== 0) { + $rotation *= -1; + $angle = $rotation * M_PI / 180; + $a = \cos($angle); + $b = \sin($angle); + $c = -$b; + $d = $a; + + switch ($rotation) { + case -90: + $e = -$bbox->getLly(); + $f = $bbox->getUrx(); + break; + case -180: + $e = $bbox->getUrx(); + $f = $bbox->getUry(); + break; + case -270: + $e = $bbox->getUry(); + $f = -$bbox->getLlx(); + break; + } + } + + // we need to rotate/translate + if ($a != 1 || $b != 0 || $c != 0 || $d != 1 || $e != 0 || $f != 0) { + $dict->value['Matrix'] = PdfArray::create([ + PdfNumeric::create($a), PdfNumeric::create($b), PdfNumeric::create($c), + PdfNumeric::create($d), PdfNumeric::create($e), PdfNumeric::create($f) + ]); + } + + // try to use the existing content stream + $pageDict = $page->getPageDictionary(); + + try { + $contentsObject = PdfType::resolve(PdfDictionary::get($pageDict, 'Contents'), $reader->getParser(), true); + $contents = PdfType::resolve($contentsObject, $reader->getParser()); + + // just copy the stream reference if it is only a single stream + if ( + ($contentsIsStream = ($contents instanceof PdfStream)) + || ($contents instanceof PdfArray && \count($contents->value) === 1) + ) { + if ($contentsIsStream) { + /** + * @var PdfIndirectObject $contentsObject + */ + $stream = $contents; + } else { + $stream = PdfType::resolve($contents->value[0], $reader->getParser()); + } + + $filter = PdfDictionary::get($stream->value, 'Filter'); + if (!$filter instanceof PdfNull) { + $dict->value['Filter'] = $filter; + } + $length = PdfType::resolve(PdfDictionary::get($stream->value, 'Length'), $reader->getParser()); + $dict->value['Length'] = $length; + $stream->value = $dict; + // otherwise extract it from the array and re-compress the whole stream + } else { + $streamContent = $this->compress + ? \gzcompress($page->getContentStream()) + : $page->getContentStream(); + + $dict->value['Length'] = PdfNumeric::create(\strlen($streamContent)); + if ($this->compress) { + $dict->value['Filter'] = PdfName::create('FlateDecode'); + } + + $stream = PdfStream::create($dict, $streamContent); + } + // Catch faulty pages and use an empty content stream + } catch (FpdiException $e) { + $dict->value['Length'] = PdfNumeric::create(0); + $stream = PdfStream::create($dict, ''); + } + + $this->importedPages[$pageId] = [ + 'objectNumber' => null, + 'readerId' => $this->currentReaderId, + 'id' => 'TPL' . $this->getNextTemplateId(), + 'width' => $width / $this->k, + 'height' => $height / $this->k, + 'stream' => $stream + ]; + + return $pageId; + } + + /** + * Draws an imported page onto the page. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $pageId The page id + * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size. + * @see Fpdi::getTemplateSize() + */ + public function useImportedPage($pageId, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + if (\is_array($x)) { + /** @noinspection OffsetOperationsInspection */ + unset($x['pageId']); + \extract($x, EXTR_IF_EXISTS); + /** @noinspection NotOptimalIfConditionsInspection */ + if (\is_array($x)) { + $x = 0; + } + } + + if (!isset($this->importedPages[$pageId])) { + throw new \InvalidArgumentException('Imported page does not exist!'); + } + + $importedPage = $this->importedPages[$pageId]; + + $originalSize = $this->getTemplateSize($pageId); + $newSize = $this->getTemplateSize($pageId, $width, $height); + if ($adjustPageSize) { + $this->setPageFormat($newSize, $newSize['orientation']); + } + + $this->_out( + // reset standard values, translate and scale + \sprintf( + 'q 0 J 1 w 0 j 0 G 0 g %.4F 0 0 %.4F %.4F %.4F cm /%s Do Q', + ($newSize['width'] / $originalSize['width']), + ($newSize['height'] / $originalSize['height']), + $x * $this->k, + ($this->h - $y - $newSize['height']) * $this->k, + $importedPage['id'] + ) + ); + + return $newSize; + } + + /** + * Get the size of an imported page. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P) + */ + public function getImportedPageSize($tpl, $width = null, $height = null) + { + if (isset($this->importedPages[$tpl])) { + $importedPage = $this->importedPages[$tpl]; + + if ($width === null && $height === null) { + $width = $importedPage['width']; + $height = $importedPage['height']; + } elseif ($width === null) { + $width = $height * $importedPage['width'] / $importedPage['height']; + } + + if ($height === null) { + $height = $width * $importedPage['height'] / $importedPage['width']; + } + + if ($height <= 0. || $width <= 0.) { + throw new \InvalidArgumentException('Width or height parameter needs to be larger than zero.'); + } + + return [ + 'width' => $width, + 'height' => $height, + 0 => $width, + 1 => $height, + 'orientation' => $width > $height ? 'L' : 'P' + ]; + } + + return false; + } + + /** + * Writes a PdfType object to the resulting buffer. + * + * @param PdfType $value + * @throws PdfTypeException + */ + protected function writePdfType(PdfType $value) + { + if ($value instanceof PdfNumeric) { + if (\is_int($value->value)) { + $this->_put($value->value . ' ', false); + } else { + $this->_put(\rtrim(\rtrim(\sprintf('%.5F', $value->value), '0'), '.') . ' ', false); + } + } elseif ($value instanceof PdfName) { + $this->_put('/' . $value->value . ' ', false); + } elseif ($value instanceof PdfString) { + $this->_put('(' . $value->value . ')', false); + } elseif ($value instanceof PdfHexString) { + $this->_put('<' . $value->value . '>'); + } elseif ($value instanceof PdfBoolean) { + $this->_put($value->value ? 'true ' : 'false ', false); + } elseif ($value instanceof PdfArray) { + $this->_put('[', false); + foreach ($value->value as $entry) { + $this->writePdfType($entry); + } + $this->_put(']'); + } elseif ($value instanceof PdfDictionary) { + $this->_put('<<', false); + foreach ($value->value as $name => $entry) { + $this->_put('/' . $name . ' ', false); + $this->writePdfType($entry); + } + $this->_put('>>'); + } elseif ($value instanceof PdfToken) { + $this->_put($value->value); + } elseif ($value instanceof PdfNull) { + $this->_put('null '); + } elseif ($value instanceof PdfStream) { + /** + * @var $value PdfStream + */ + $this->writePdfType($value->value); + $this->_put('stream'); + $this->_put($value->getStream()); + $this->_put('endstream'); + } elseif ($value instanceof PdfIndirectObjectReference) { + if (!isset($this->objectMap[$this->currentReaderId])) { + $this->objectMap[$this->currentReaderId] = []; + } + + if (!isset($this->objectMap[$this->currentReaderId][$value->value])) { + $this->objectMap[$this->currentReaderId][$value->value] = ++$this->n; + $this->objectsToCopy[$this->currentReaderId][] = $value->value; + } + + $this->_put($this->objectMap[$this->currentReaderId][$value->value] . ' 0 R ', false); + } elseif ($value instanceof PdfIndirectObject) { + /** + * @var PdfIndirectObject $value + */ + $n = $this->objectMap[$this->currentReaderId][$value->objectNumber]; + $this->_newobj($n); + $this->writePdfType($value->value); + $this->_put('endobj'); + } + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/AbstractReader.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/AbstractReader.php new file mode 100644 index 0000000..b54237b --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/AbstractReader.php @@ -0,0 +1,95 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfToken; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; + +/** + * Abstract class for cross-reference reader classes. + */ +abstract class AbstractReader +{ + /** + * @var PdfParser + */ + protected $parser; + + /** + * @var PdfDictionary + */ + protected $trailer; + + /** + * AbstractReader constructor. + * + * @param PdfParser $parser + * @throws CrossReferenceException + * @throws PdfTypeException + */ + public function __construct(PdfParser $parser) + { + $this->parser = $parser; + $this->readTrailer(); + } + + /** + * Get the trailer dictionary. + * + * @return PdfDictionary + */ + public function getTrailer() + { + return $this->trailer; + } + + /** + * Read the trailer dictionary. + * + * @throws CrossReferenceException + * @throws PdfTypeException + */ + protected function readTrailer() + { + try { + $trailerKeyword = $this->parser->readValue(null, PdfToken::class); + if ($trailerKeyword->value !== 'trailer') { + throw new CrossReferenceException( + \sprintf( + 'Unexpected end of cross reference. "trailer"-keyword expected, got: %s.', + $trailerKeyword->value + ), + CrossReferenceException::UNEXPECTED_END + ); + } + } catch (PdfTypeException $e) { + throw new CrossReferenceException( + 'Unexpected end of cross reference. "trailer"-keyword expected, got an invalid object type.', + CrossReferenceException::UNEXPECTED_END, + $e + ); + } + + try { + $trailer = $this->parser->readValue(null, PdfDictionary::class); + } catch (PdfTypeException $e) { + throw new CrossReferenceException( + 'Unexpected end of cross reference. Trailer not found.', + CrossReferenceException::UNEXPECTED_END, + $e + ); + } + + $this->trailer = $trailer; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReference.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReference.php new file mode 100644 index 0000000..c47e8c4 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReference.php @@ -0,0 +1,326 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfStream; +use setasign\Fpdi\PdfParser\Type\PdfToken; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; + +/** + * Class CrossReference + * + * This class processes the standard cross reference of a PDF document. + */ +class CrossReference +{ + /** + * The byte length in which the "startxref" keyword should be searched. + * + * @var int + */ + public static $trailerSearchLength = 5500; + + /** + * @var int + */ + protected $fileHeaderOffset = 0; + + /** + * @var PdfParser + */ + protected $parser; + + /** + * @var ReaderInterface[] + */ + protected $readers = []; + + /** + * CrossReference constructor. + * + * @param PdfParser $parser + * @throws CrossReferenceException + * @throws PdfTypeException + */ + public function __construct(PdfParser $parser, $fileHeaderOffset = 0) + { + $this->parser = $parser; + $this->fileHeaderOffset = $fileHeaderOffset; + + $offset = $this->findStartXref(); + $reader = null; + /** @noinspection TypeUnsafeComparisonInspection */ + while ($offset != false) { // By doing an unsafe comparsion we ignore faulty references to byte offset 0 + try { + $reader = $this->readXref($offset + $this->fileHeaderOffset); + } catch (CrossReferenceException $e) { + // sometimes the file header offset is part of the byte offsets, so let's retry by resetting it to zero. + if ($e->getCode() === CrossReferenceException::INVALID_DATA && $this->fileHeaderOffset !== 0) { + $this->fileHeaderOffset = 0; + $reader = $this->readXref($offset + $this->fileHeaderOffset); + } else { + throw $e; + } + } + + $trailer = $reader->getTrailer(); + $this->checkForEncryption($trailer); + $this->readers[] = $reader; + + if (isset($trailer->value['Prev'])) { + $offset = $trailer->value['Prev']->value; + } else { + $offset = false; + } + } + + // fix faulty sub-section header + if ($reader instanceof FixedReader) { + /** + * @var FixedReader $reader + */ + $reader->fixFaultySubSectionShift(); + } + + if ($reader === null) { + throw new CrossReferenceException('No cross-reference found.', CrossReferenceException::NO_XREF_FOUND); + } + } + + /** + * Get the size of the cross reference. + * + * @return integer + */ + public function getSize() + { + return $this->getTrailer()->value['Size']->value; + } + + /** + * Get the trailer dictionary. + * + * @return PdfDictionary + */ + public function getTrailer() + { + return $this->readers[0]->getTrailer(); + } + + /** + * Get the cross reference readser instances. + * + * @return ReaderInterface[] + */ + public function getReaders() + { + return $this->readers; + } + + /** + * Get the offset by an object number. + * + * @param int $objectNumber + * @return integer|bool + */ + public function getOffsetFor($objectNumber) + { + foreach ($this->getReaders() as $reader) { + $offset = $reader->getOffsetFor($objectNumber); + if ($offset !== false) { + return $offset; + } + } + + return false; + } + + /** + * Get an indirect object by its object number. + * + * @param int $objectNumber + * @return PdfIndirectObject + * @throws CrossReferenceException + */ + public function getIndirectObject($objectNumber) + { + $offset = $this->getOffsetFor($objectNumber); + if ($offset === false) { + throw new CrossReferenceException( + \sprintf('Object (id:%s) not found.', $objectNumber), + CrossReferenceException::OBJECT_NOT_FOUND + ); + } + + $parser = $this->parser; + + $parser->getTokenizer()->clearStack(); + $parser->getStreamReader()->reset($offset + $this->fileHeaderOffset); + + try { + /** @var PdfIndirectObject $object */ + $object = $parser->readValue(null, PdfIndirectObject::class); + } catch (PdfTypeException $e) { + throw new CrossReferenceException( + \sprintf('Object (id:%s) not found at location (%s).', $objectNumber, $offset), + CrossReferenceException::OBJECT_NOT_FOUND, + $e + ); + } + + if ($object->objectNumber !== $objectNumber) { + throw new CrossReferenceException( + \sprintf('Wrong object found, got %s while %s was expected.', $object->objectNumber, $objectNumber), + CrossReferenceException::OBJECT_NOT_FOUND + ); + } + + return $object; + } + + /** + * Read the cross-reference table at a given offset. + * + * Internally the method will try to evaluate the best reader for this cross-reference. + * + * @param int $offset + * @return ReaderInterface + * @throws CrossReferenceException + * @throws PdfTypeException + */ + protected function readXref($offset) + { + $this->parser->getStreamReader()->reset($offset); + $this->parser->getTokenizer()->clearStack(); + $initValue = $this->parser->readValue(); + + return $this->initReaderInstance($initValue); + } + + /** + * Get a cross-reference reader instance. + * + * @param PdfToken|PdfIndirectObject $initValue + * @return ReaderInterface|bool + * @throws CrossReferenceException + * @throws PdfTypeException + */ + protected function initReaderInstance($initValue) + { + $position = $this->parser->getStreamReader()->getPosition() + + $this->parser->getStreamReader()->getOffset() + $this->fileHeaderOffset; + + if ($initValue instanceof PdfToken && $initValue->value === 'xref') { + try { + return new FixedReader($this->parser); + } catch (CrossReferenceException $e) { + $this->parser->getStreamReader()->reset($position); + $this->parser->getTokenizer()->clearStack(); + + return new LineReader($this->parser); + } + } + + if ($initValue instanceof PdfIndirectObject) { + try { + $stream = PdfStream::ensure($initValue->value); + } catch (PdfTypeException $e) { + throw new CrossReferenceException( + 'Invalid object type at xref reference offset.', + CrossReferenceException::INVALID_DATA, + $e + ); + } + + $type = PdfDictionary::get($stream->value, 'Type'); + if ($type->value !== 'XRef') { + throw new CrossReferenceException( + 'The xref position points to an incorrect object type.', + CrossReferenceException::INVALID_DATA + ); + } + + $this->checkForEncryption($stream->value); + + throw new CrossReferenceException( + 'This PDF document probably uses a compression technique which is not supported by the ' . + 'free parser shipped with FPDI. (See https://www.setasign.com/fpdi-pdf-parser for more details)', + CrossReferenceException::COMPRESSED_XREF + ); + } + + throw new CrossReferenceException( + 'The xref position points to an incorrect object type.', + CrossReferenceException::INVALID_DATA + ); + } + + /** + * Check for encryption. + * + * @param PdfDictionary $dictionary + * @throws CrossReferenceException + */ + protected function checkForEncryption(PdfDictionary $dictionary) + { + if (isset($dictionary->value['Encrypt'])) { + throw new CrossReferenceException( + 'This PDF document is encrypted and cannot be processed with FPDI.', + CrossReferenceException::ENCRYPTED + ); + } + } + + /** + * Find the start position for the first cross-reference. + * + * @return int The byte-offset position of the first cross-reference. + * @throws CrossReferenceException + */ + protected function findStartXref() + { + $reader = $this->parser->getStreamReader(); + $reader->reset(-self::$trailerSearchLength, self::$trailerSearchLength); + + $buffer = $reader->getBuffer(false); + $pos = \strrpos($buffer, 'startxref'); + $addOffset = 9; + if ($pos === false) { + // Some corrupted documents uses startref, instead of startxref + $pos = \strrpos($buffer, 'startref'); + if ($pos === false) { + throw new CrossReferenceException( + 'Unable to find pointer to xref table', + CrossReferenceException::NO_STARTXREF_FOUND + ); + } + $addOffset = 8; + } + + $reader->setOffset($pos + $addOffset); + + try { + $value = $this->parser->readValue(null, PdfNumeric::class); + } catch (PdfTypeException $e) { + throw new CrossReferenceException( + 'Invalid data after startxref keyword.', + CrossReferenceException::INVALID_DATA, + $e + ); + } + + return $value->value; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReferenceException.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReferenceException.php new file mode 100644 index 0000000..7d88d5d --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/CrossReferenceException.php @@ -0,0 +1,79 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\PdfParserException; + +/** + * Exception used by the CrossReference and Reader classes. + */ +class CrossReferenceException extends PdfParserException +{ + /** + * @var int + */ + const INVALID_DATA = 0x0101; + + /** + * @var int + */ + const XREF_MISSING = 0x0102; + + /** + * @var int + */ + const ENTRIES_TOO_LARGE = 0x0103; + + /** + * @var int + */ + const ENTRIES_TOO_SHORT = 0x0104; + + /** + * @var int + */ + const NO_ENTRIES = 0x0105; + + /** + * @var int + */ + const NO_TRAILER_FOUND = 0x0106; + + /** + * @var int + */ + const NO_STARTXREF_FOUND = 0x0107; + + /** + * @var int + */ + const NO_XREF_FOUND = 0x0108; + + /** + * @var int + */ + const UNEXPECTED_END = 0x0109; + + /** + * @var int + */ + const OBJECT_NOT_FOUND = 0x010A; + + /** + * @var int + */ + const COMPRESSED_XREF = 0x010B; + + /** + * @var int + */ + const ENCRYPTED = 0x010C; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/FixedReader.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/FixedReader.php new file mode 100644 index 0000000..883feec --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/FixedReader.php @@ -0,0 +1,199 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\StreamReader; + +/** + * Class FixedReader + * + * This reader allows a very less overhead parsing of single entries of the cross-reference, because the main entries + * are only read when needed and not in a single run. + */ +class FixedReader extends AbstractReader implements ReaderInterface +{ + /** + * @var StreamReader + */ + protected $reader; + + /** + * Data of subsections. + * + * @var array + */ + protected $subSections; + + /** + * FixedReader constructor. + * + * @param PdfParser $parser + * @throws CrossReferenceException + */ + public function __construct(PdfParser $parser) + { + $this->reader = $parser->getStreamReader(); + $this->read(); + parent::__construct($parser); + } + + /** + * Get all subsection data. + * + * @return array + */ + public function getSubSections() + { + return $this->subSections; + } + + /** + * @inheritdoc + */ + public function getOffsetFor($objectNumber) + { + foreach ($this->subSections as $offset => list($startObject, $objectCount)) { + /** + * @var int $startObject + * @var int $objectCount + */ + if ($objectNumber >= $startObject && $objectNumber < ($startObject + $objectCount)) { + $position = $offset + 20 * ($objectNumber - $startObject); + $this->reader->ensure($position, 20); + $line = $this->reader->readBytes(20); + if ($line[17] === 'f') { + return false; + } + + return (int) \substr($line, 0, 10); + } + } + + return false; + } + + /** + * Read the cross-reference. + * + * This reader will only read the subsections in this method. The offsets were resolved individually by this + * information. + * + * @throws CrossReferenceException + */ + protected function read() + { + $subSections = []; + + $startObject = $entryCount = $lastLineStart = null; + $validityChecked = false; + while (($line = $this->reader->readLine(20)) !== false) { + if (\strpos($line, 'trailer') !== false) { + $this->reader->reset($lastLineStart); + break; + } + + // jump over if line content doesn't match the expected string + if (\sscanf($line, '%d %d', $startObject, $entryCount) !== 2) { + continue; + } + + $oldPosition = $this->reader->getPosition(); + $position = $oldPosition + $this->reader->getOffset(); + + if (!$validityChecked && $entryCount > 0) { + $nextLine = $this->reader->readBytes(21); + /* Check the next line for maximum of 20 bytes and not longer + * By catching 21 bytes and trimming the length should be still 21. + */ + if (\strlen(\trim($nextLine)) !== 21) { + throw new CrossReferenceException( + 'Cross-reference entries are larger than 20 bytes.', + CrossReferenceException::ENTRIES_TOO_LARGE + ); + } + + /* Check for less than 20 bytes: cut the line to 20 bytes and trim; have to result in exactly 18 bytes. + * If it would have less bytes the substring would get the first bytes of the next line which would + * evaluate to a 20 bytes long string after trimming. + */ + if (\strlen(\trim(\substr($nextLine, 0, 20))) !== 18) { + throw new CrossReferenceException( + 'Cross-reference entries are less than 20 bytes.', + CrossReferenceException::ENTRIES_TOO_SHORT + ); + } + + $validityChecked = true; + } + + $subSections[$position] = [$startObject, $entryCount]; + + $lastLineStart = $position + $entryCount * 20; + $this->reader->reset($lastLineStart); + } + + // reset after the last correct parsed line + $this->reader->reset($lastLineStart); + + if (\count($subSections) === 0) { + throw new CrossReferenceException( + 'No entries found in cross-reference.', + CrossReferenceException::NO_ENTRIES + ); + } + + $this->subSections = $subSections; + } + + /** + * Fixes an invalid object number shift. + * + * This method can be used to repair documents with an invalid subsection header: + * + * <code> + * xref + * 1 7 + * 0000000000 65535 f + * 0000000009 00000 n + * 0000412075 00000 n + * 0000412172 00000 n + * 0000412359 00000 n + * 0000412417 00000 n + * 0000412468 00000 n + * </code> + * + * It shall only be called on the first table. + * + * @return bool + */ + public function fixFaultySubSectionShift() + { + $subSections = $this->getSubSections(); + if (\count($subSections) > 1) { + return false; + } + + $subSection = \current($subSections); + if ($subSection[0] != 1) { + return false; + } + + if ($this->getOffsetFor(1) === false) { + foreach ($subSections as $offset => list($startObject, $objectCount)) { + $this->subSections[$offset] = [$startObject - 1, $objectCount]; + } + return true; + } + + return false; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/LineReader.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/LineReader.php new file mode 100644 index 0000000..b6f0e42 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/LineReader.php @@ -0,0 +1,167 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\StreamReader; + +/** + * Class LineReader + * + * This reader class read all cross-reference entries in a single run. + * It supports reading cross-references with e.g. invalid data (e.g. entries with a length < or > 20 bytes). + */ +class LineReader extends AbstractReader implements ReaderInterface +{ + /** + * The object offsets. + * + * @var array + */ + protected $offsets; + + /** + * LineReader constructor. + * + * @param PdfParser $parser + * @throws CrossReferenceException + */ + public function __construct(PdfParser $parser) + { + $this->read($this->extract($parser->getStreamReader())); + parent::__construct($parser); + } + + /** + * @inheritdoc + */ + public function getOffsetFor($objectNumber) + { + if (isset($this->offsets[$objectNumber])) { + return $this->offsets[$objectNumber][0]; + } + + return false; + } + + /** + * Get all found offsets. + * + * @return array + */ + public function getOffsets() + { + return $this->offsets; + } + + /** + * Extracts the cross reference data from the stream reader. + * + * @param StreamReader $reader + * @return string + * @throws CrossReferenceException + */ + protected function extract(StreamReader $reader) + { + $bytesPerCycle = 100; + $reader->reset(null, $bytesPerCycle); + + $cycles = 0; + do { + // 6 = length of "trailer" - 1 + $pos = \max(($bytesPerCycle * $cycles) - 6, 0); + $trailerPos = \strpos($reader->getBuffer(false), 'trailer', $pos); + $cycles++; + } while ($trailerPos === false && $reader->increaseLength($bytesPerCycle) !== false); + + if ($trailerPos === false) { + throw new CrossReferenceException( + 'Unexpected end of cross reference. "trailer"-keyword not found.', + CrossReferenceException::NO_TRAILER_FOUND + ); + } + + $xrefContent = \substr($reader->getBuffer(false), 0, $trailerPos); + $reader->reset($reader->getPosition() + $trailerPos); + + return $xrefContent; + } + + /** + * Read the cross-reference entries. + * + * @param string $xrefContent + * @throws CrossReferenceException + */ + protected function read($xrefContent) + { + // get eol markers in the first 100 bytes + \preg_match_all("/(\r\n|\n|\r)/", \substr($xrefContent, 0, 100), $m); + + if (\count($m[0]) === 0) { + throw new CrossReferenceException( + 'No data found in cross-reference.', + CrossReferenceException::INVALID_DATA + ); + } + + // count(array_count_values()) is faster then count(array_unique()) + // @see https://github.com/symfony/symfony/pull/23731 + // can be reverted for php7.2 + $differentLineEndings = \count(\array_count_values($m[0])); + if ($differentLineEndings > 1) { + $lines = \preg_split("/(\r\n|\n|\r)/", $xrefContent, -1, PREG_SPLIT_NO_EMPTY); + } else { + $lines = \explode($m[0][0], $xrefContent); + } + + unset($differentLineEndings, $m); + if (!\is_array($lines)) { + $this->offsets = []; + return; + } + + $start = 0; + $offsets = []; + + // trim all lines and remove empty lines + $lines = \array_filter(\array_map('\trim', $lines)); + foreach ($lines as $line) { + $pieces = \explode(' ', $line); + + switch (\count($pieces)) { + case 2: + $start = (int) $pieces[0]; + break; + + case 3: + switch ($pieces[2]) { + case 'n': + $offsets[$start] = [(int) $pieces[0], (int) $pieces[1]]; + $start++; + break 2; + case 'f': + $start++; + break 2; + } + // fall through if pieces doesn't match + + default: + throw new CrossReferenceException( + \sprintf('Unexpected data in xref table (%s)', \implode(' ', $pieces)), + CrossReferenceException::INVALID_DATA + ); + } + } + + $this->offsets = $offsets; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/CrossReference/ReaderInterface.php b/vendor/setasign/fpdi/src/PdfParser/CrossReference/ReaderInterface.php new file mode 100644 index 0000000..d2dfdd0 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/CrossReference/ReaderInterface.php @@ -0,0 +1,34 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\CrossReference; + +use setasign\Fpdi\PdfParser\Type\PdfDictionary; + +/** + * ReaderInterface for cross-reference readers. + */ +interface ReaderInterface +{ + /** + * Get an offset by an object number. + * + * @param int $objectNumber + * @return int|bool False if the offset was not found. + */ + public function getOffsetFor($objectNumber); + + /** + * Get the trailer related to this cross reference. + * + * @return PdfDictionary + */ + public function getTrailer(); +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85.php b/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85.php new file mode 100644 index 0000000..1dc936d --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85.php @@ -0,0 +1,102 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Class for handling ASCII base-85 encoded data + */ +class Ascii85 implements FilterInterface +{ + /** + * Decode ASCII85 encoded string. + * + * @param string $data The input string + * @return string + * @throws Ascii85Exception + */ + public function decode($data) + { + $out = ''; + $state = 0; + $chn = null; + + $data = \preg_replace('/\s/', '', $data); + + $l = \strlen($data); + + /** @noinspection ForeachInvariantsInspection */ + for ($k = 0; $k < $l; ++$k) { + $ch = \ord($data[$k]) & 0xff; + + //Start <~ + if ($k === 0 && $ch === 60 && isset($data[$k + 1]) && (\ord($data[$k + 1]) & 0xFF) === 126) { + $k++; + continue; + } + //End ~> + if ($ch === 126 && isset($data[$k + 1]) && (\ord($data[$k + 1]) & 0xFF) === 62) { + break; + } + + if ($ch === 122 /* z */ && $state === 0) { + $out .= \chr(0) . \chr(0) . \chr(0) . \chr(0); + continue; + } + + if ($ch < 33 /* ! */ || $ch > 117 /* u */) { + throw new Ascii85Exception( + 'Illegal character found while ASCII85 decode.', + Ascii85Exception::ILLEGAL_CHAR_FOUND + ); + } + + $chn[$state] = $ch - 33;/* ! */ + $state++; + + if ($state === 5) { + $state = 0; + $r = 0; + for ($j = 0; $j < 5; ++$j) { + /** @noinspection UnnecessaryCastingInspection */ + $r = (int)($r * 85 + $chn[$j]); + } + + $out .= \chr($r >> 24) + . \chr($r >> 16) + . \chr($r >> 8) + . \chr($r); + } + } + + if ($state === 1) { + throw new Ascii85Exception( + 'Illegal length while ASCII85 decode.', + Ascii85Exception::ILLEGAL_LENGTH + ); + } + + if ($state === 2) { + $r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1] + 1) * 85 * 85 * 85; + $out .= \chr($r >> 24); + } elseif ($state === 3) { + $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + ($chn[2] + 1) * 85 * 85; + $out .= \chr($r >> 24); + $out .= \chr($r >> 16); + } elseif ($state === 4) { + $r = $chn[0] * 85 * 85 * 85 * 85 + $chn[1] * 85 * 85 * 85 + $chn[2] * 85 * 85 + ($chn[3] + 1) * 85; + $out .= \chr($r >> 24); + $out .= \chr($r >> 16); + $out .= \chr($r >> 8); + } + + return $out; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85Exception.php b/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85Exception.php new file mode 100644 index 0000000..f4b6758 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/Ascii85Exception.php @@ -0,0 +1,27 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Exception for Ascii85 filter class + */ +class Ascii85Exception extends FilterException +{ + /** + * @var integer + */ + const ILLEGAL_CHAR_FOUND = 0x0301; + + /** + * @var integer + */ + const ILLEGAL_LENGTH = 0x0302; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/AsciiHex.php b/vendor/setasign/fpdi/src/PdfParser/Filter/AsciiHex.php new file mode 100644 index 0000000..d0c3436 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/AsciiHex.php @@ -0,0 +1,47 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Class for handling ASCII hexadecimal encoded data + */ +class AsciiHex implements FilterInterface +{ + /** + * Converts an ASCII hexadecimal encoded string into its binary representation. + * + * @param string $data The input string + * @return string + */ + public function decode($data) + { + $data = \preg_replace('/[^0-9A-Fa-f]/', '', \rtrim($data, '>')); + if ((\strlen($data) % 2) === 1) { + $data .= '0'; + } + + return \pack('H*', $data); + } + + /** + * Converts a string into ASCII hexadecimal representation. + * + * @param string $data The input string + * @param boolean $leaveEOD + * @return string + */ + public function encode($data, $leaveEOD = false) + { + $t = \unpack('H*', $data); + return \current($t) + . ($leaveEOD ? '' : '>'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/FilterException.php b/vendor/setasign/fpdi/src/PdfParser/Filter/FilterException.php new file mode 100644 index 0000000..c55a7a8 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/FilterException.php @@ -0,0 +1,23 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +use setasign\Fpdi\PdfParser\PdfParserException; + +/** + * Exception for filters + */ +class FilterException extends PdfParserException +{ + const UNSUPPORTED_FILTER = 0x0201; + + const NOT_IMPLEMENTED = 0x0202; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/FilterInterface.php b/vendor/setasign/fpdi/src/PdfParser/Filter/FilterInterface.php new file mode 100644 index 0000000..3700190 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/FilterInterface.php @@ -0,0 +1,25 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Interface for filters + */ +interface FilterInterface +{ + /** + * Decode a string. + * + * @param string $data The input string + * @return string + */ + public function decode($data); +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/Flate.php b/vendor/setasign/fpdi/src/PdfParser/Filter/Flate.php new file mode 100644 index 0000000..b8f79d1 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/Flate.php @@ -0,0 +1,86 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Class for handling zlib/deflate encoded data + */ +class Flate implements FilterInterface +{ + /** + * Checks whether the zlib extension is loaded. + * + * Used for testing purpose. + * + * @return boolean + * @internal + */ + protected function extensionLoaded() + { + return \extension_loaded('zlib'); + } + + /** + * Decodes a flate compressed string. + * + * @param string|false $data The input string + * @return string + * @throws FlateException + */ + public function decode($data) + { + if ($this->extensionLoaded()) { + $oData = $data; + $data = (($data !== '') ? @\gzuncompress($data) : ''); + if ($data === false) { + // let's try if the checksum is CRC32 + $fh = fopen('php://temp', 'w+b'); + fwrite($fh, "\x1f\x8b\x08\x00\x00\x00\x00\x00" . $oData); + stream_filter_append($fh, 'zlib.inflate', STREAM_FILTER_READ, ['window' => 30]); + fseek($fh, 0); + $data = @stream_get_contents($fh); + fclose($fh); + + if ($data) { + return $data; + } + + // Try this fallback + $tries = 0; + + $oDataLen = strlen($oData); + while ($tries < 6 && ($data === false || (strlen($data) < ($oDataLen - $tries - 1)))) { + $data = @(gzinflate(substr($oData, $tries))); + $tries++; + } + + // let's use this fallback only if the $data is longer than the original data + if (strlen($data) > ($oDataLen - $tries - 1)) { + return $data; + } + + if (!$data) { + throw new FlateException( + 'Error while decompressing stream.', + FlateException::DECOMPRESS_ERROR + ); + } + } + } else { + throw new FlateException( + 'To handle FlateDecode filter, enable zlib support in PHP.', + FlateException::NO_ZLIB + ); + } + + return $data; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/FlateException.php b/vendor/setasign/fpdi/src/PdfParser/Filter/FlateException.php new file mode 100644 index 0000000..d897ac8 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/FlateException.php @@ -0,0 +1,27 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Exception for flate filter class + */ +class FlateException extends FilterException +{ + /** + * @var integer + */ + const NO_ZLIB = 0x0401; + + /** + * @var integer + */ + const DECOMPRESS_ERROR = 0x0402; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/Lzw.php b/vendor/setasign/fpdi/src/PdfParser/Filter/Lzw.php new file mode 100644 index 0000000..bedb5b7 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/Lzw.php @@ -0,0 +1,187 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Class for handling LZW encoded data + */ +class Lzw implements FilterInterface +{ + /** + * @var null|string + */ + protected $data; + + /** + * @var array + */ + protected $sTable = []; + + /** + * @var int + */ + protected $dataLength = 0; + + /** + * @var int + */ + protected $tIdx; + + /** + * @var int + */ + protected $bitsToGet = 9; + + /** + * @var int + */ + protected $bytePointer; + + /** + * @var int + */ + protected $nextData = 0; + + /** + * @var int + */ + protected $nextBits = 0; + + /** + * @var array + */ + protected $andTable = [511, 1023, 2047, 4095]; + + /** + * Method to decode LZW compressed data. + * + * @param string $data The compressed data + * @return string The uncompressed data + * @throws LzwException + */ + public function decode($data) + { + if ($data[0] === "\x00" && $data[1] === "\x01") { + throw new LzwException( + 'LZW flavour not supported.', + LzwException::LZW_FLAVOUR_NOT_SUPPORTED + ); + } + + $this->initsTable(); + + $this->data = $data; + $this->dataLength = \strlen($data); + + // Initialize pointers + $this->bytePointer = 0; + + $this->nextData = 0; + $this->nextBits = 0; + + $oldCode = 0; + + $uncompData = ''; + + while (($code = $this->getNextCode()) !== 257) { + if ($code === 256) { + $this->initsTable(); + $code = $this->getNextCode(); + + if ($code === 257) { + break; + } + + $uncompData .= $this->sTable[$code]; + $oldCode = $code; + } else { + if ($code < $this->tIdx) { + $string = $this->sTable[$code]; + $uncompData .= $string; + + $this->addStringToTable($this->sTable[$oldCode], $string[0]); + $oldCode = $code; + } else { + $string = $this->sTable[$oldCode]; + $string .= $string[0]; + $uncompData .= $string; + + $this->addStringToTable($string); + $oldCode = $code; + } + } + } + + return $uncompData; + } + + /** + * Initialize the string table. + */ + protected function initsTable() + { + $this->sTable = []; + + for ($i = 0; $i < 256; $i++) { + $this->sTable[$i] = \chr($i); + } + + $this->tIdx = 258; + $this->bitsToGet = 9; + } + + /** + * Add a new string to the string table. + * + * @param string $oldString + * @param string $newString + */ + protected function addStringToTable($oldString, $newString = '') + { + $string = $oldString . $newString; + + // Add this new String to the table + $this->sTable[$this->tIdx++] = $string; + + if ($this->tIdx === 511) { + $this->bitsToGet = 10; + } elseif ($this->tIdx === 1023) { + $this->bitsToGet = 11; + } elseif ($this->tIdx === 2047) { + $this->bitsToGet = 12; + } + } + + /** + * Returns the next 9, 10, 11 or 12 bits. + * + * @return integer + */ + protected function getNextCode() + { + if ($this->bytePointer === $this->dataLength) { + return 257; + } + + $this->nextData = ($this->nextData << 8) | (\ord($this->data[$this->bytePointer++]) & 0xff); + $this->nextBits += 8; + + if ($this->nextBits < $this->bitsToGet) { + $this->nextData = ($this->nextData << 8) | (\ord($this->data[$this->bytePointer++]) & 0xff); + $this->nextBits += 8; + } + + $code = ($this->nextData >> ($this->nextBits - $this->bitsToGet)) & $this->andTable[$this->bitsToGet - 9]; + $this->nextBits -= $this->bitsToGet; + + return $code; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Filter/LzwException.php b/vendor/setasign/fpdi/src/PdfParser/Filter/LzwException.php new file mode 100644 index 0000000..6ebad4f --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Filter/LzwException.php @@ -0,0 +1,22 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Filter; + +/** + * Exception for LZW filter class + */ +class LzwException extends FilterException +{ + /** + * @var integer + */ + const LZW_FLAVOUR_NOT_SUPPORTED = 0x0501; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/PdfParser.php b/vendor/setasign/fpdi/src/PdfParser/PdfParser.php new file mode 100644 index 0000000..f724314 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/PdfParser.php @@ -0,0 +1,381 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReference; +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\Type\PdfArray; +use setasign\Fpdi\PdfParser\Type\PdfBoolean; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfHexString; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference; +use setasign\Fpdi\PdfParser\Type\PdfName; +use setasign\Fpdi\PdfParser\Type\PdfNull; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfStream; +use setasign\Fpdi\PdfParser\Type\PdfString; +use setasign\Fpdi\PdfParser\Type\PdfToken; +use setasign\Fpdi\PdfParser\Type\PdfType; + +/** + * A PDF parser class + */ +class PdfParser +{ + /** + * @var StreamReader + */ + protected $streamReader; + + /** + * @var Tokenizer + */ + protected $tokenizer; + + /** + * The file header. + * + * @var string + */ + protected $fileHeader; + + /** + * The offset to the file header. + * + * @var int + */ + protected $fileHeaderOffset; + + /** + * @var CrossReference|null + */ + protected $xref; + + /** + * All read objects. + * + * @var array + */ + protected $objects = []; + + /** + * PdfParser constructor. + * + * @param StreamReader $streamReader + */ + public function __construct(StreamReader $streamReader) + { + $this->streamReader = $streamReader; + $this->tokenizer = new Tokenizer($streamReader); + } + + /** + * Removes cycled references. + * + * @internal + */ + public function cleanUp() + { + $this->xref = null; + } + + /** + * Get the stream reader instance. + * + * @return StreamReader + */ + public function getStreamReader() + { + return $this->streamReader; + } + + /** + * Get the tokenizer instance. + * + * @return Tokenizer + */ + public function getTokenizer() + { + return $this->tokenizer; + } + + /** + * Resolves the file header. + * + * @throws PdfParserException + * @return int + */ + protected function resolveFileHeader() + { + if ($this->fileHeader) { + return $this->fileHeaderOffset; + } + + $this->streamReader->reset(0); + $maxIterations = 1000; + while (true) { + $buffer = $this->streamReader->getBuffer(false); + $offset = \strpos($buffer, '%PDF-'); + if ($offset === false) { + if (!$this->streamReader->increaseLength(100) || (--$maxIterations === 0)) { + throw new PdfParserException( + 'Unable to find PDF file header.', + PdfParserException::FILE_HEADER_NOT_FOUND + ); + } + continue; + } + break; + } + + $this->fileHeaderOffset = $offset; + $this->streamReader->setOffset($offset); + + $this->fileHeader = \trim($this->streamReader->readLine()); + return $this->fileHeaderOffset; + } + + /** + * Get the cross reference instance. + * + * @return CrossReference + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function getCrossReference() + { + if ($this->xref === null) { + $this->xref = new CrossReference($this, $this->resolveFileHeader()); + } + + return $this->xref; + } + + /** + * Get the PDF version. + * + * @return int[] An array of major and minor version. + * @throws PdfParserException + */ + public function getPdfVersion() + { + $this->resolveFileHeader(); + + if (\preg_match('/%PDF-(\d)\.(\d)/', $this->fileHeader, $result) === 0) { + throw new PdfParserException( + 'Unable to extract PDF version from file header.', + PdfParserException::PDF_VERSION_NOT_FOUND + ); + } + list(, $major, $minor) = $result; + + $catalog = $this->getCatalog(); + if (isset($catalog->value['Version'])) { + $versionParts = \explode( + '.', + PdfName::unescape(PdfType::resolve($catalog->value['Version'], $this)->value) + ); + if (count($versionParts) === 2) { + list($major, $minor) = $versionParts; + } + } + + return [(int) $major, (int) $minor]; + } + + /** + * Get the catalog dictionary. + * + * @return PdfDictionary + * @throws Type\PdfTypeException + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function getCatalog() + { + $trailer = $this->getCrossReference()->getTrailer(); + + $catalog = PdfType::resolve(PdfDictionary::get($trailer, 'Root'), $this); + + return PdfDictionary::ensure($catalog); + } + + /** + * Get an indirect object by its object number. + * + * @param int $objectNumber + * @param bool $cache + * @return PdfIndirectObject + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function getIndirectObject($objectNumber, $cache = false) + { + $objectNumber = (int) $objectNumber; + if (isset($this->objects[$objectNumber])) { + return $this->objects[$objectNumber]; + } + + $object = $this->getCrossReference()->getIndirectObject($objectNumber); + + if ($cache) { + $this->objects[$objectNumber] = $object; + } + + return $object; + } + + /** + * Read a PDF value. + * + * @param null|bool|string $token + * @param null|string $expectedType + * @return false|PdfArray|PdfBoolean|PdfDictionary|PdfHexString|PdfIndirectObject|PdfIndirectObjectReference|PdfName|PdfNull|PdfNumeric|PdfStream|PdfString|PdfToken + * @throws Type\PdfTypeException + */ + public function readValue($token = null, $expectedType = null) + { + if ($token === null) { + $token = $this->tokenizer->getNextToken(); + } + + if ($token === false) { + if ($expectedType !== null) { + throw new Type\PdfTypeException('Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE); + } + return false; + } + + switch ($token) { + case '(': + $this->ensureExpectedType($token, $expectedType); + return PdfString::parse($this->streamReader); + + case '<': + if ($this->streamReader->getByte() === '<') { + $this->ensureExpectedType('<<', $expectedType); + $this->streamReader->addOffset(1); + return PdfDictionary::parse($this->tokenizer, $this->streamReader, $this); + } + + $this->ensureExpectedType($token, $expectedType); + return PdfHexString::parse($this->streamReader); + + case '/': + $this->ensureExpectedType($token, $expectedType); + return PdfName::parse($this->tokenizer, $this->streamReader); + + case '[': + $this->ensureExpectedType($token, $expectedType); + return PdfArray::parse($this->tokenizer, $this); + + default: + if (\is_numeric($token)) { + if (($token2 = $this->tokenizer->getNextToken()) !== false) { + if (\is_numeric($token2) && ($token3 = $this->tokenizer->getNextToken()) !== false) { + switch ($token3) { + case 'obj': + if ($expectedType !== null && $expectedType !== PdfIndirectObject::class) { + throw new Type\PdfTypeException( + 'Got unexpected token type.', + Type\PdfTypeException::INVALID_DATA_TYPE + ); + } + + return PdfIndirectObject::parse( + (int) $token, + (int) $token2, + $this, + $this->tokenizer, + $this->streamReader + ); + case 'R': + if ( + $expectedType !== null && + $expectedType !== PdfIndirectObjectReference::class + ) { + throw new Type\PdfTypeException( + 'Got unexpected token type.', + Type\PdfTypeException::INVALID_DATA_TYPE + ); + } + + return PdfIndirectObjectReference::create((int) $token, (int) $token2); + } + + $this->tokenizer->pushStack($token3); + } + + $this->tokenizer->pushStack($token2); + } + + if ($expectedType !== null && $expectedType !== PdfNumeric::class) { + throw new Type\PdfTypeException( + 'Got unexpected token type.', + Type\PdfTypeException::INVALID_DATA_TYPE + ); + } + return PdfNumeric::create($token + 0); + } + + if ($token === 'true' || $token === 'false') { + $this->ensureExpectedType($token, $expectedType); + return PdfBoolean::create($token === 'true'); + } + + if ($token === 'null') { + $this->ensureExpectedType($token, $expectedType); + return new PdfNull(); + } + + if ($expectedType !== null && $expectedType !== PdfToken::class) { + throw new Type\PdfTypeException( + 'Got unexpected token type.', + Type\PdfTypeException::INVALID_DATA_TYPE + ); + } + + $v = new PdfToken(); + $v->value = $token; + + return $v; + } + } + + /** + * Ensures that the token will evaluate to an expected object type (or not). + * + * @param string $token + * @param string|null $expectedType + * @return bool + * @throws Type\PdfTypeException + */ + private function ensureExpectedType($token, $expectedType) + { + static $mapping = [ + '(' => PdfString::class, + '<' => PdfHexString::class, + '<<' => PdfDictionary::class, + '/' => PdfName::class, + '[' => PdfArray::class, + 'true' => PdfBoolean::class, + 'false' => PdfBoolean::class, + 'null' => PdfNull::class + ]; + + if ($expectedType === null || $mapping[$token] === $expectedType) { + return true; + } + + throw new Type\PdfTypeException('Got unexpected token type.', Type\PdfTypeException::INVALID_DATA_TYPE); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/PdfParserException.php b/vendor/setasign/fpdi/src/PdfParser/PdfParserException.php new file mode 100644 index 0000000..6d034d8 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/PdfParserException.php @@ -0,0 +1,49 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser; + +use setasign\Fpdi\FpdiException; + +/** + * Exception for the pdf parser class + */ +class PdfParserException extends FpdiException +{ + /** + * @var int + */ + const NOT_IMPLEMENTED = 0x0001; + + /** + * @var int + */ + const IMPLEMENTED_IN_FPDI_PDF_PARSER = 0x0002; + + /** + * @var int + */ + const INVALID_DATA_TYPE = 0x0003; + + /** + * @var int + */ + const FILE_HEADER_NOT_FOUND = 0x0004; + + /** + * @var int + */ + const PDF_VERSION_NOT_FOUND = 0x0005; + + /** + * @var int + */ + const INVALID_DATA_SIZE = 0x0006; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/StreamReader.php b/vendor/setasign/fpdi/src/PdfParser/StreamReader.php new file mode 100644 index 0000000..ee40ebb --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/StreamReader.php @@ -0,0 +1,471 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser; + +/** + * A stream reader class + */ +class StreamReader +{ + /** + * Creates a stream reader instance by a string value. + * + * @param string $content + * @param int $maxMemory + * @return StreamReader + */ + public static function createByString($content, $maxMemory = 2097152) + { + $h = \fopen('php://temp/maxmemory:' . ((int) $maxMemory), 'r+b'); + \fwrite($h, $content); + \rewind($h); + + return new self($h, true); + } + + /** + * Creates a stream reader instance by a filename. + * + * @param string $filename + * @return StreamReader + */ + public static function createByFile($filename) + { + $h = \fopen($filename, 'rb'); + return new self($h, true); + } + + /** + * Defines whether the stream should be closed when the stream reader instance is deconstructed or not. + * + * @var bool + */ + protected $closeStream; + + /** + * The stream resource. + * + * @var resource + */ + protected $stream; + + /** + * The byte-offset position in the stream. + * + * @var int + */ + protected $position; + + /** + * The byte-offset position in the buffer. + * + * @var int + */ + protected $offset; + + /** + * The buffer length. + * + * @var int + */ + protected $bufferLength; + + /** + * The total length of the stream. + * + * @var int + */ + protected $totalLength; + + /** + * The buffer. + * + * @var string + */ + protected $buffer; + + /** + * StreamReader constructor. + * + * @param resource $stream + * @param bool $closeStream Defines whether to close the stream resource if the instance is destructed or not. + */ + public function __construct($stream, $closeStream = false) + { + if (!\is_resource($stream)) { + throw new \InvalidArgumentException( + 'No stream given.' + ); + } + + $metaData = \stream_get_meta_data($stream); + if (!$metaData['seekable']) { + throw new \InvalidArgumentException( + 'Given stream is not seekable!' + ); + } + + $this->stream = $stream; + $this->closeStream = $closeStream; + $this->reset(); + } + + /** + * The destructor. + */ + public function __destruct() + { + $this->cleanUp(); + } + + /** + * Closes the file handle. + */ + public function cleanUp() + { + if ($this->closeStream && is_resource($this->stream)) { + \fclose($this->stream); + } + } + + /** + * Returns the byte length of the buffer. + * + * @param bool $atOffset + * @return int + */ + public function getBufferLength($atOffset = false) + { + if ($atOffset === false) { + return $this->bufferLength; + } + + return $this->bufferLength - $this->offset; + } + + /** + * Get the current position in the stream. + * + * @return int + */ + public function getPosition() + { + return $this->position; + } + + /** + * Returns the current buffer. + * + * @param bool $atOffset + * @return string + */ + public function getBuffer($atOffset = true) + { + if ($atOffset === false) { + return $this->buffer; + } + + $string = \substr($this->buffer, $this->offset); + + return (string) $string; + } + + /** + * Gets a byte at a specific position in the buffer. + * + * If the position is invalid the method will return false. + * + * If the $position parameter is set to null the value of $this->offset will be used. + * + * @param int|null $position + * @return string|bool + */ + public function getByte($position = null) + { + $position = (int) ($position !== null ? $position : $this->offset); + if ( + $position >= $this->bufferLength + && (!$this->increaseLength() || $position >= $this->bufferLength) + ) { + return false; + } + + return $this->buffer[$position]; + } + + /** + * Returns a byte at a specific position, and set the offset to the next byte position. + * + * If the position is invalid the method will return false. + * + * If the $position parameter is set to null the value of $this->offset will be used. + * + * @param int|null $position + * @return string|bool + */ + public function readByte($position = null) + { + if ($position !== null) { + $position = (int) $position; + // check if needed bytes are available in the current buffer + if (!($position >= $this->position && $position < $this->position + $this->bufferLength)) { + $this->reset($position); + $offset = $this->offset; + } else { + $offset = $position - $this->position; + } + } else { + $offset = $this->offset; + } + + if ( + $offset >= $this->bufferLength + && ((!$this->increaseLength()) || $offset >= $this->bufferLength) + ) { + return false; + } + + $this->offset = $offset + 1; + return $this->buffer[$offset]; + } + + /** + * Read bytes from the current or a specific offset position and set the internal pointer to the next byte. + * + * If the position is invalid the method will return false. + * + * If the $position parameter is set to null the value of $this->offset will be used. + * + * @param int $length + * @param int|null $position + * @return string|false + */ + public function readBytes($length, $position = null) + { + $length = (int) $length; + if ($position !== null) { + // check if needed bytes are available in the current buffer + if (!($position >= $this->position && $position < $this->position + $this->bufferLength)) { + $this->reset($position, $length); + $offset = $this->offset; + } else { + $offset = $position - $this->position; + } + } else { + $offset = $this->offset; + } + + if ( + ($offset + $length) > $this->bufferLength + && ((!$this->increaseLength($length)) || ($offset + $length) > $this->bufferLength) + ) { + return false; + } + + $bytes = \substr($this->buffer, $offset, $length); + $this->offset = $offset + $length; + + return $bytes; + } + + /** + * Read a line from the current position. + * + * @param int $length + * @return string|bool + */ + public function readLine($length = 1024) + { + if ($this->ensureContent() === false) { + return false; + } + + $line = ''; + while ($this->ensureContent()) { + $char = $this->readByte(); + + if ($char === "\n") { + break; + } + + if ($char === "\r") { + if ($this->getByte() === "\n") { + $this->addOffset(1); + } + break; + } + + $line .= $char; + + if (\strlen($line) >= $length) { + break; + } + } + + return $line; + } + + /** + * Set the offset position in the current buffer. + * + * @param int $offset + */ + public function setOffset($offset) + { + if ($offset > $this->bufferLength || $offset < 0) { + throw new \OutOfRangeException( + \sprintf('Offset (%s) out of range (length: %s)', $offset, $this->bufferLength) + ); + } + + $this->offset = (int) $offset; + } + + /** + * Returns the current offset in the current buffer. + * + * @return int + */ + public function getOffset() + { + return $this->offset; + } + + /** + * Add an offset to the current offset. + * + * @param int $offset + */ + public function addOffset($offset) + { + $this->setOffset($this->offset + $offset); + } + + /** + * Make sure that there is at least one character beyond the current offset in the buffer. + * + * @return bool + */ + public function ensureContent() + { + while ($this->offset >= $this->bufferLength) { + if (!$this->increaseLength()) { + return false; + } + } + return true; + } + + /** + * Returns the stream. + * + * @return resource + */ + public function getStream() + { + return $this->stream; + } + + /** + * Gets the total available length. + * + * @return int + */ + public function getTotalLength() + { + if ($this->totalLength === null) { + $stat = \fstat($this->stream); + $this->totalLength = $stat['size']; + } + + return $this->totalLength; + } + + /** + * Resets the buffer to a position and re-read the buffer with the given length. + * + * If the $pos parameter is negative the start buffer position will be the $pos'th position from + * the end of the file. + * + * If the $pos parameter is negative and the absolute value is bigger then the totalLength of + * the file $pos will set to zero. + * + * @param int|null $pos Start position of the new buffer + * @param int $length Length of the new buffer. Mustn't be negative + */ + public function reset($pos = 0, $length = 200) + { + if ($pos === null) { + $pos = $this->position + $this->offset; + } elseif ($pos < 0) { + $pos = \max(0, $this->getTotalLength() + $pos); + } + + \fseek($this->stream, $pos); + + $this->position = $pos; + $this->buffer = $length > 0 ? \fread($this->stream, $length) : ''; + $this->bufferLength = \strlen($this->buffer); + $this->offset = 0; + + // If a stream wrapper is in use it is possible that + // length values > 8096 will be ignored, so use the + // increaseLength()-method to correct that behavior + if ($this->bufferLength < $length && $this->increaseLength($length - $this->bufferLength)) { + // increaseLength parameter is $minLength, so cut to have only the required bytes in the buffer + $this->buffer = \substr($this->buffer, 0, $length); + $this->bufferLength = \strlen($this->buffer); + } + } + + /** + * Ensures bytes in the buffer with a specific length and location in the file. + * + * @param int $pos + * @param int $length + * @see reset() + */ + public function ensure($pos, $length) + { + if ( + $pos >= $this->position + && $pos < ($this->position + $this->bufferLength) + && ($this->position + $this->bufferLength) >= ($pos + $length) + ) { + $this->offset = $pos - $this->position; + } else { + $this->reset($pos, $length); + } + } + + /** + * Forcefully read more data into the buffer. + * + * @param int $minLength + * @return bool Returns false if the stream reaches the end + */ + public function increaseLength($minLength = 100) + { + $length = \max($minLength, 100); + + if (\feof($this->stream) || $this->getTotalLength() === $this->position + $this->bufferLength) { + return false; + } + + $newLength = $this->bufferLength + $length; + do { + $this->buffer .= \fread($this->stream, $newLength - $this->bufferLength); + $this->bufferLength = \strlen($this->buffer); + } while (($this->bufferLength !== $newLength) && !\feof($this->stream)); + + return true; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Tokenizer.php b/vendor/setasign/fpdi/src/PdfParser/Tokenizer.php new file mode 100644 index 0000000..a3bcd01 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Tokenizer.php @@ -0,0 +1,154 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser; + +/** + * A tokenizer class. + */ +class Tokenizer +{ + /** + * @var StreamReader + */ + protected $streamReader; + + /** + * A token stack. + * + * @var string[] + */ + protected $stack = []; + + /** + * Tokenizer constructor. + * + * @param StreamReader $streamReader + */ + public function __construct(StreamReader $streamReader) + { + $this->streamReader = $streamReader; + } + + /** + * Get the stream reader instance. + * + * @return StreamReader + */ + public function getStreamReader() + { + return $this->streamReader; + } + + /** + * Clear the token stack. + */ + public function clearStack() + { + $this->stack = []; + } + + /** + * Push a token onto the stack. + * + * @param string $token + */ + public function pushStack($token) + { + $this->stack[] = $token; + } + + /** + * Get next token. + * + * @return bool|string + */ + public function getNextToken() + { + $token = \array_pop($this->stack); + if ($token !== null) { + return $token; + } + + if (($byte = $this->streamReader->readByte()) === false) { + return false; + } + + if (\in_array($byte, ["\x20", "\x0A", "\x0D", "\x0C", "\x09", "\x00"], true)) { + if ($this->leapWhiteSpaces() === false) { + return false; + } + $byte = $this->streamReader->readByte(); + } + + switch ($byte) { + case '/': + case '[': + case ']': + case '(': + case ')': + case '{': + case '}': + case '<': + case '>': + return $byte; + case '%': + $this->streamReader->readLine(); + return $this->getNextToken(); + } + + /* This way is faster than checking single bytes. + */ + $bufferOffset = $this->streamReader->getOffset(); + do { + $lastBuffer = $this->streamReader->getBuffer(false); + $pos = \strcspn( + $lastBuffer, + "\x00\x09\x0A\x0C\x0D\x20()<>[]{}/%", + $bufferOffset + ); + } while ( + // Break the loop if a delimiter or white space char is matched + // in the current buffer or increase the buffers length + $lastBuffer !== false && + ( + $bufferOffset + $pos === \strlen($lastBuffer) && + $this->streamReader->increaseLength() + ) + ); + + $result = \substr($lastBuffer, $bufferOffset - 1, $pos + 1); + $this->streamReader->setOffset($bufferOffset + $pos); + + return $result; + } + + /** + * Leap white spaces. + * + * @return boolean + */ + public function leapWhiteSpaces() + { + do { + if (!$this->streamReader->ensureContent()) { + return false; + } + + $buffer = $this->streamReader->getBuffer(false); + $matches = \strspn($buffer, "\x20\x0A\x0C\x0D\x09\x00", $this->streamReader->getOffset()); + if ($matches > 0) { + $this->streamReader->addOffset($matches); + } + } while ($this->streamReader->getOffset() >= $this->streamReader->getBufferLength()); + + return true; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfArray.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfArray.php new file mode 100644 index 0000000..5d0bbbd --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfArray.php @@ -0,0 +1,85 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\Tokenizer; + +/** + * Class representing a PDF array object + * + * @property array $value The value of the PDF type. + */ +class PdfArray extends PdfType +{ + /** + * Parses an array of the passed tokenizer and parser. + * + * @param Tokenizer $tokenizer + * @param PdfParser $parser + * @return bool|self + * @throws PdfTypeException + */ + public static function parse(Tokenizer $tokenizer, PdfParser $parser) + { + $result = []; + + // Recurse into this function until we reach the end of the array. + while (($token = $tokenizer->getNextToken()) !== ']') { + if ($token === false || ($value = $parser->readValue($token)) === false) { + return false; + } + + $result[] = $value; + } + + $v = new self(); + $v->value = $result; + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param PdfType[] $values + * @return self + */ + public static function create(array $values = []) + { + $v = new self(); + $v->value = $values; + + return $v; + } + + /** + * Ensures that the passed array is a PdfArray instance with a (optional) specific size. + * + * @param mixed $array + * @param null|int $size + * @return self + * @throws PdfTypeException + */ + public static function ensure($array, $size = null) + { + $result = PdfType::ensureType(self::class, $array, 'Array value expected.'); + + if ($size !== null && \count($array->value) !== $size) { + throw new PdfTypeException( + \sprintf('Array with %s entries expected.', $size), + PdfTypeException::INVALID_DATA_SIZE + ); + } + + return $result; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfBoolean.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfBoolean.php new file mode 100644 index 0000000..ba4233a --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfBoolean.php @@ -0,0 +1,42 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +/** + * Class representing a boolean PDF object + */ +class PdfBoolean extends PdfType +{ + /** + * Helper method to create an instance. + * + * @param bool $value + * @return self + */ + public static function create($value) + { + $v = new self(); + $v->value = (bool) $value; + return $v; + } + + /** + * Ensures that the passed value is a PdfBoolean instance. + * + * @param mixed $value + * @return self + * @throws PdfTypeException + */ + public static function ensure($value) + { + return PdfType::ensureType(self::class, $value, 'Boolean value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfDictionary.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfDictionary.php new file mode 100644 index 0000000..2818842 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfDictionary.php @@ -0,0 +1,134 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\StreamReader; +use setasign\Fpdi\PdfParser\Tokenizer; + +/** + * Class representing a PDF dictionary object + */ +class PdfDictionary extends PdfType +{ + /** + * Parses a dictionary of the passed tokenizer, stream-reader and parser. + * + * @param Tokenizer $tokenizer + * @param StreamReader $streamReader + * @param PdfParser $parser + * @return bool|self + * @throws PdfTypeException + */ + public static function parse(Tokenizer $tokenizer, StreamReader $streamReader, PdfParser $parser) + { + $entries = []; + + while (true) { + $token = $tokenizer->getNextToken(); + if ($token === '>' && $streamReader->getByte() === '>') { + $streamReader->addOffset(1); + break; + } + + $key = $parser->readValue($token); + if ($key === false) { + return false; + } + + // ensure the first value to be a Name object + if (!($key instanceof PdfName)) { + $lastToken = null; + // ignore all other entries and search for the closing brackets + while (($token = $tokenizer->getNextToken()) !== '>' && $token !== false && $lastToken !== '>') { + $lastToken = $token; + } + + if ($token === false) { + return false; + } + + break; + } + + + $value = $parser->readValue(); + if ($value === false) { + return false; + } + + if ($value instanceof PdfNull) { + continue; + } + + // catch missing value + if ($value instanceof PdfToken && $value->value === '>' && $streamReader->getByte() === '>') { + $streamReader->addOffset(1); + break; + } + + $entries[$key->value] = $value; + } + + $v = new self(); + $v->value = $entries; + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param PdfType[] $entries The keys are the name entries of the dictionary. + * @return self + */ + public static function create(array $entries = []) + { + $v = new self(); + $v->value = $entries; + + return $v; + } + + /** + * Get a value by its key from a dictionary or a default value. + * + * @param mixed $dictionary + * @param string $key + * @param PdfType|null $default + * @return PdfNull|PdfType + * @throws PdfTypeException + */ + public static function get($dictionary, $key, PdfType $default = null) + { + $dictionary = self::ensure($dictionary); + + if (isset($dictionary->value[$key])) { + return $dictionary->value[$key]; + } + + return $default === null + ? new PdfNull() + : $default; + } + + /** + * Ensures that the passed value is a PdfDictionary instance. + * + * @param mixed $dictionary + * @return self + * @throws PdfTypeException + */ + public static function ensure($dictionary) + { + return PdfType::ensureType(self::class, $dictionary, 'Dictionary value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfHexString.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfHexString.php new file mode 100644 index 0000000..0084ada --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfHexString.php @@ -0,0 +1,77 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\StreamReader; + +/** + * Class representing a hexadecimal encoded PDF string object + */ +class PdfHexString extends PdfType +{ + /** + * Parses a hexadecimal string object from the stream reader. + * + * @param StreamReader $streamReader + * @return bool|self + */ + public static function parse(StreamReader $streamReader) + { + $bufferOffset = $streamReader->getOffset(); + + while (true) { + $buffer = $streamReader->getBuffer(false); + $pos = \strpos($buffer, '>', $bufferOffset); + if ($pos === false) { + if (!$streamReader->increaseLength()) { + return false; + } + continue; + } + + break; + } + + $result = \substr($buffer, $bufferOffset, $pos - $bufferOffset); + $streamReader->setOffset($pos + 1); + + $v = new self(); + $v->value = $result; + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param string $string The hex encoded string. + * @return self + */ + public static function create($string) + { + $v = new self(); + $v->value = $string; + + return $v; + } + + /** + * Ensures that the passed value is a PdfHexString instance. + * + * @param mixed $hexString + * @return self + * @throws PdfTypeException + */ + public static function ensure($hexString) + { + return PdfType::ensureType(self::class, $hexString, 'Hex string value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObject.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObject.php new file mode 100644 index 0000000..15786d0 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObject.php @@ -0,0 +1,103 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\StreamReader; +use setasign\Fpdi\PdfParser\Tokenizer; + +/** + * Class representing an indirect object + */ +class PdfIndirectObject extends PdfType +{ + /** + * Parses an indirect object from a tokenizer, parser and stream-reader. + * + * @param int $objectNumberToken + * @param int $objectGenerationNumberToken + * @param PdfParser $parser + * @param Tokenizer $tokenizer + * @param StreamReader $reader + * @return bool|self + * @throws PdfTypeException + */ + public static function parse( + $objectNumberToken, + $objectGenerationNumberToken, + PdfParser $parser, + Tokenizer $tokenizer, + StreamReader $reader + ) { + $value = $parser->readValue(); + if ($value === false) { + return false; + } + + $nextToken = $tokenizer->getNextToken(); + if ($nextToken === 'stream') { + $value = PdfStream::parse($value, $reader, $parser); + } elseif ($nextToken !== false) { + $tokenizer->pushStack($nextToken); + } + + $v = new self(); + $v->objectNumber = (int) $objectNumberToken; + $v->generationNumber = (int) $objectGenerationNumberToken; + $v->value = $value; + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param int $objectNumber + * @param int $generationNumber + * @param PdfType $value + * @return self + */ + public static function create($objectNumber, $generationNumber, PdfType $value) + { + $v = new self(); + $v->objectNumber = (int) $objectNumber; + $v->generationNumber = (int) $generationNumber; + $v->value = $value; + + return $v; + } + + /** + * Ensures that the passed value is a PdfIndirectObject instance. + * + * @param mixed $indirectObject + * @return self + * @throws PdfTypeException + */ + public static function ensure($indirectObject) + { + return PdfType::ensureType(self::class, $indirectObject, 'Indirect object expected.'); + } + + /** + * The object number. + * + * @var int + */ + public $objectNumber; + + /** + * The generation number. + * + * @var int + */ + public $generationNumber; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObjectReference.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObjectReference.php new file mode 100644 index 0000000..2725d0c --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfIndirectObjectReference.php @@ -0,0 +1,52 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +/** + * Class representing an indirect object reference + */ +class PdfIndirectObjectReference extends PdfType +{ + /** + * Helper method to create an instance. + * + * @param int $objectNumber + * @param int $generationNumber + * @return self + */ + public static function create($objectNumber, $generationNumber) + { + $v = new self(); + $v->value = (int) $objectNumber; + $v->generationNumber = (int) $generationNumber; + + return $v; + } + + /** + * Ensures that the passed value is a PdfIndirectObject instance. + * + * @param mixed $value + * @return self + * @throws PdfTypeException + */ + public static function ensure($value) + { + return PdfType::ensureType(self::class, $value, 'Indirect reference value expected.'); + } + + /** + * The generation number. + * + * @var int + */ + public $generationNumber; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfName.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfName.php new file mode 100644 index 0000000..194a13f --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfName.php @@ -0,0 +1,82 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\StreamReader; +use setasign\Fpdi\PdfParser\Tokenizer; + +/** + * Class representing a PDF name object + */ +class PdfName extends PdfType +{ + /** + * Parses a name object from the passed tokenizer and stream-reader. + * + * @param Tokenizer $tokenizer + * @param StreamReader $streamReader + * @return self + */ + public static function parse(Tokenizer $tokenizer, StreamReader $streamReader) + { + $v = new self(); + if (\strspn($streamReader->getByte(), "\x00\x09\x0A\x0C\x0D\x20()<>[]{}/%") === 0) { + $v->value = (string) $tokenizer->getNextToken(); + return $v; + } + + $v->value = ''; + return $v; + } + + /** + * Unescapes a name string. + * + * @param string $value + * @return string + */ + public static function unescape($value) + { + if (strpos($value, '#') === false) { + return $value; + } + + return preg_replace_callback('/#([a-fA-F\d]{2})/', function ($matches) { + return chr(hexdec($matches[1])); + }, $value); + } + + /** + * Helper method to create an instance. + * + * @param string $string + * @return self + */ + public static function create($string) + { + $v = new self(); + $v->value = $string; + + return $v; + } + + /** + * Ensures that the passed value is a PdfName instance. + * + * @param mixed $name + * @return self + * @throws PdfTypeException + */ + public static function ensure($name) + { + return PdfType::ensureType(self::class, $name, 'Name value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfNull.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfNull.php new file mode 100644 index 0000000..0c4c108 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfNull.php @@ -0,0 +1,19 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +/** + * Class representing a PDF null object + */ +class PdfNull extends PdfType +{ + // empty body +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfNumeric.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfNumeric.php new file mode 100644 index 0000000..9de912b --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfNumeric.php @@ -0,0 +1,43 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +/** + * Class representing a numeric PDF object + */ +class PdfNumeric extends PdfType +{ + /** + * Helper method to create an instance. + * + * @param int|float $value + * @return PdfNumeric + */ + public static function create($value) + { + $v = new self(); + $v->value = $value + 0; + + return $v; + } + + /** + * Ensures that the passed value is a PdfNumeric instance. + * + * @param mixed $value + * @return self + * @throws PdfTypeException + */ + public static function ensure($value) + { + return PdfType::ensureType(self::class, $value, 'Numeric value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfStream.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfStream.php new file mode 100644 index 0000000..6d4c5a8 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfStream.php @@ -0,0 +1,326 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\Filter\Ascii85; +use setasign\Fpdi\PdfParser\Filter\AsciiHex; +use setasign\Fpdi\PdfParser\Filter\FilterException; +use setasign\Fpdi\PdfParser\Filter\Flate; +use setasign\Fpdi\PdfParser\Filter\Lzw; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\StreamReader; +use setasign\FpdiPdfParser\PdfParser\Filter\Predictor; + +/** + * Class representing a PDF stream object + */ +class PdfStream extends PdfType +{ + /** + * Parses a stream from a stream reader. + * + * @param PdfDictionary $dictionary + * @param StreamReader $reader + * @param PdfParser $parser Optional to keep backwards compatibility + * @return self + * @throws PdfTypeException + */ + public static function parse(PdfDictionary $dictionary, StreamReader $reader, PdfParser $parser = null) + { + $v = new self(); + $v->value = $dictionary; + $v->reader = $reader; + $v->parser = $parser; + + $offset = $reader->getOffset(); + + // Find the first "newline" + while (($firstByte = $reader->getByte($offset)) !== false) { + if ($firstByte !== "\n" && $firstByte !== "\r") { + $offset++; + } else { + break; + } + } + + if ($firstByte === false) { + throw new PdfTypeException( + 'Unable to parse stream data. No newline after the stream keyword found.', + PdfTypeException::NO_NEWLINE_AFTER_STREAM_KEYWORD + ); + } + + $sndByte = $reader->getByte($offset + 1); + if ($firstByte === "\n" || $firstByte === "\r") { + $offset++; + } + + if ($sndByte === "\n" && $firstByte !== "\n") { + $offset++; + } + + $reader->setOffset($offset); + // let's only save the byte-offset and read the stream only when needed + $v->stream = $reader->getPosition() + $reader->getOffset(); + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param PdfDictionary $dictionary + * @param string $stream + * @return self + */ + public static function create(PdfDictionary $dictionary, $stream) + { + $v = new self(); + $v->value = $dictionary; + $v->stream = (string) $stream; + + return $v; + } + + /** + * Ensures that the passed value is a PdfStream instance. + * + * @param mixed $stream + * @return self + * @throws PdfTypeException + */ + public static function ensure($stream) + { + return PdfType::ensureType(self::class, $stream, 'Stream value expected.'); + } + + /** + * The stream or its byte-offset position. + * + * @var int|string + */ + protected $stream; + + /** + * The stream reader instance. + * + * @var StreamReader|null + */ + protected $reader; + + /** + * The PDF parser instance. + * + * @var PdfParser + */ + protected $parser; + + /** + * Get the stream data. + * + * @param bool $cache Whether cache the stream data or not. + * @return bool|string + * @throws PdfTypeException + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function getStream($cache = false) + { + if (\is_int($this->stream)) { + $length = PdfDictionary::get($this->value, 'Length'); + if ($this->parser !== null) { + $length = PdfType::resolve($length, $this->parser); + } + + if (!($length instanceof PdfNumeric) || $length->value === 0) { + $this->reader->reset($this->stream, 100000); + $buffer = $this->extractStream(); + } else { + $this->reader->reset($this->stream, $length->value); + $buffer = $this->reader->getBuffer(false); + if ($this->parser !== null) { + $this->reader->reset($this->stream + strlen($buffer)); + $this->parser->getTokenizer()->clearStack(); + $token = $this->parser->readValue(); + if ($token === false || !($token instanceof PdfToken) || $token->value !== 'endstream') { + $this->reader->reset($this->stream, 100000); + $buffer = $this->extractStream(); + $this->reader->reset($this->stream + strlen($buffer)); + } + } + } + + if ($cache === false) { + return $buffer; + } + + $this->stream = $buffer; + $this->reader = null; + } + + return $this->stream; + } + + /** + * Extract the stream "manually". + * + * @return string + * @throws PdfTypeException + */ + protected function extractStream() + { + while (true) { + $buffer = $this->reader->getBuffer(false); + $length = \strpos($buffer, 'endstream'); + if ($length === false) { + if (!$this->reader->increaseLength(100000)) { + throw new PdfTypeException('Cannot extract stream.'); + } + continue; + } + break; + } + + $buffer = \substr($buffer, 0, $length); + $lastByte = \substr($buffer, -1); + + /* Check for EOL marker = + * CARRIAGE RETURN (\r) and a LINE FEED (\n) or just a LINE FEED (\n}, + * and not by a CARRIAGE RETURN (\r) alone + */ + if ($lastByte === "\n") { + $buffer = \substr($buffer, 0, -1); + + $lastByte = \substr($buffer, -1); + if ($lastByte === "\r") { + $buffer = \substr($buffer, 0, -1); + } + } + + // There are streams in the wild, which have only white signs in them but need to be parsed manually due + // to a problem encountered before (e.g. Length === 0). We should set them to empty streams to avoid problems + // in further processing (e.g. applying of filters). + if (trim($buffer) === '') { + $buffer = ''; + } + + return $buffer; + } + + /** + * Get the unfiltered stream data. + * + * @return string + * @throws FilterException + * @throws PdfParserException + */ + public function getUnfilteredStream() + { + $stream = $this->getStream(); + $filters = PdfDictionary::get($this->value, 'Filter'); + if ($filters instanceof PdfNull) { + return $stream; + } + + if ($filters instanceof PdfArray) { + $filters = $filters->value; + } else { + $filters = [$filters]; + } + + $decodeParams = PdfDictionary::get($this->value, 'DecodeParms'); + if ($decodeParams instanceof PdfArray) { + $decodeParams = $decodeParams->value; + } else { + $decodeParams = [$decodeParams]; + } + + foreach ($filters as $key => $filter) { + if (!($filter instanceof PdfName)) { + continue; + } + + $decodeParam = null; + if (isset($decodeParams[$key])) { + $decodeParam = ($decodeParams[$key] instanceof PdfDictionary ? $decodeParams[$key] : null); + } + + switch ($filter->value) { + case 'FlateDecode': + case 'Fl': + case 'LZWDecode': + case 'LZW': + if (\strpos($filter->value, 'LZW') === 0) { + $filterObject = new Lzw(); + } else { + $filterObject = new Flate(); + } + + $stream = $filterObject->decode($stream); + + if ($decodeParam instanceof PdfDictionary) { + $predictor = PdfDictionary::get($decodeParam, 'Predictor', PdfNumeric::create(1)); + if ($predictor->value !== 1) { + if (!\class_exists(Predictor::class)) { + throw new PdfParserException( + 'This PDF document makes use of features which are only implemented in the ' . + 'commercial "FPDI PDF-Parser" add-on (see https://www.setasign.com/fpdi-pdf-' . + 'parser).', + PdfParserException::IMPLEMENTED_IN_FPDI_PDF_PARSER + ); + } + + $colors = PdfDictionary::get($decodeParam, 'Colors', PdfNumeric::create(1)); + $bitsPerComponent = PdfDictionary::get( + $decodeParam, + 'BitsPerComponent', + PdfNumeric::create(8) + ); + + $columns = PdfDictionary::get($decodeParam, 'Columns', PdfNumeric::create(1)); + + $filterObject = new Predictor( + $predictor->value, + $colors->value, + $bitsPerComponent->value, + $columns->value + ); + + $stream = $filterObject->decode($stream); + } + } + + break; + case 'ASCII85Decode': + case 'A85': + $filterObject = new Ascii85(); + $stream = $filterObject->decode($stream); + break; + + case 'ASCIIHexDecode': + case 'AHx': + $filterObject = new AsciiHex(); + $stream = $filterObject->decode($stream); + break; + + default: + throw new FilterException( + \sprintf('Unsupported filter "%s".', $filter->value), + FilterException::UNSUPPORTED_FILTER + ); + } + } + + return $stream; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfString.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfString.php new file mode 100644 index 0000000..1636e68 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfString.php @@ -0,0 +1,172 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\StreamReader; + +/** + * Class representing a PDF string object + */ +class PdfString extends PdfType +{ + /** + * Parses a string object from the stream reader. + * + * @param StreamReader $streamReader + * @return self + */ + public static function parse(StreamReader $streamReader) + { + $pos = $startPos = $streamReader->getOffset(); + $openBrackets = 1; + do { + $buffer = $streamReader->getBuffer(false); + for ($length = \strlen($buffer); $openBrackets !== 0 && $pos < $length; $pos++) { + switch ($buffer[$pos]) { + case '(': + $openBrackets++; + break; + case ')': + $openBrackets--; + break; + case '\\': + $pos++; + } + } + } while ($openBrackets !== 0 && $streamReader->increaseLength()); + + $result = \substr($buffer, $startPos, $openBrackets + $pos - $startPos - 1); + $streamReader->setOffset($pos); + + $v = new self(); + $v->value = $result; + + return $v; + } + + /** + * Helper method to create an instance. + * + * @param string $value The string needs to be escaped accordingly. + * @return self + */ + public static function create($value) + { + $v = new self(); + $v->value = $value; + + return $v; + } + + /** + * Ensures that the passed value is a PdfString instance. + * + * @param mixed $string + * @return self + * @throws PdfTypeException + */ + public static function ensure($string) + { + return PdfType::ensureType(self::class, $string, 'String value expected.'); + } + + /** + * Unescapes escaped sequences in a PDF string according to the PDF specification. + * + * @param string $s + * @return string + */ + public static function unescape($s) + { + $out = ''; + /** @noinspection ForeachInvariantsInspection */ + for ($count = 0, $n = \strlen($s); $count < $n; $count++) { + if ($s[$count] !== '\\') { + $out .= $s[$count]; + } else { + // A backslash at the end of the string - ignore it + if ($count === ($n - 1)) { + break; + } + + switch ($s[++$count]) { + case ')': + case '(': + case '\\': + $out .= $s[$count]; + break; + + case 'f': + $out .= "\x0C"; + break; + + case 'b': + $out .= "\x08"; + break; + + case 't': + $out .= "\x09"; + break; + + case 'r': + $out .= "\x0D"; + break; + + case 'n': + $out .= "\x0A"; + break; + + case "\r": + if ($count !== $n - 1 && $s[$count + 1] === "\n") { + $count++; + } + break; + + case "\n": + break; + + default: + $actualChar = \ord($s[$count]); + // ascii 48 = number 0 + // ascii 57 = number 9 + if ($actualChar >= 48 && $actualChar <= 57) { + $oct = '' . $s[$count]; + + /** @noinspection NotOptimalIfConditionsInspection */ + if ( + $count + 1 < $n + && \ord($s[$count + 1]) >= 48 + && \ord($s[$count + 1]) <= 57 + ) { + $count++; + $oct .= $s[$count]; + + /** @noinspection NotOptimalIfConditionsInspection */ + if ( + $count + 1 < $n + && \ord($s[$count + 1]) >= 48 + && \ord($s[$count + 1]) <= 57 + ) { + $oct .= $s[++$count]; + } + } + + $out .= \chr(\octdec($oct)); + } else { + // If the character is not one of those defined, the backslash is ignored + $out .= $s[$count]; + } + } + } + } + return $out; + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfToken.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfToken.php new file mode 100644 index 0000000..012b9fd --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfToken.php @@ -0,0 +1,43 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +/** + * Class representing PDF token object + */ +class PdfToken extends PdfType +{ + /** + * Helper method to create an instance. + * + * @param string $token + * @return self + */ + public static function create($token) + { + $v = new self(); + $v->value = $token; + + return $v; + } + + /** + * Ensures that the passed value is a PdfToken instance. + * + * @param mixed $token + * @return self + * @throws PdfTypeException + */ + public static function ensure($token) + { + return PdfType::ensureType(self::class, $token, 'Token value expected.'); + } +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php new file mode 100644 index 0000000..7672dcd --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfType.php @@ -0,0 +1,78 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; + +/** + * A class defining a PDF data type + */ +class PdfType +{ + /** + * Resolves a PdfType value to its value. + * + * This method is used to evaluate indirect and direct object references until a final value is reached. + * + * @param PdfType $value + * @param PdfParser $parser + * @param bool $stopAtIndirectObject + * @return PdfType + * @throws CrossReferenceException + * @throws PdfParserException + */ + public static function resolve(PdfType $value, PdfParser $parser, $stopAtIndirectObject = false) + { + if ($value instanceof PdfIndirectObject) { + if ($stopAtIndirectObject === true) { + return $value; + } + + return self::resolve($value->value, $parser, $stopAtIndirectObject); + } + + if ($value instanceof PdfIndirectObjectReference) { + return self::resolve($parser->getIndirectObject($value->value), $parser, $stopAtIndirectObject); + } + + return $value; + } + + /** + * Ensure that a value is an instance of a specific PDF type. + * + * @param string $type + * @param PdfType $value + * @param string $errorMessage + * @return mixed + * @throws PdfTypeException + */ + protected static function ensureType($type, $value, $errorMessage) + { + if (!($value instanceof $type)) { + throw new PdfTypeException( + $errorMessage, + PdfTypeException::INVALID_DATA_TYPE + ); + } + + return $value; + } + + /** + * The value of the PDF type. + * + * @var mixed + */ + public $value; +} diff --git a/vendor/setasign/fpdi/src/PdfParser/Type/PdfTypeException.php b/vendor/setasign/fpdi/src/PdfParser/Type/PdfTypeException.php new file mode 100644 index 0000000..593d147 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfParser/Type/PdfTypeException.php @@ -0,0 +1,24 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfParser\Type; + +use setasign\Fpdi\PdfParser\PdfParserException; + +/** + * Exception class for pdf type classes + */ +class PdfTypeException extends PdfParserException +{ + /** + * @var int + */ + const NO_NEWLINE_AFTER_STREAM_KEYWORD = 0x0601; +} diff --git a/vendor/setasign/fpdi/src/PdfReader/DataStructure/Rectangle.php b/vendor/setasign/fpdi/src/PdfReader/DataStructure/Rectangle.php new file mode 100644 index 0000000..9b19ff8 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfReader/DataStructure/Rectangle.php @@ -0,0 +1,173 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfReader\DataStructure; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfArray; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfType; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; + +/** + * Class representing a rectangle + */ +class Rectangle +{ + /** + * @var int|float + */ + protected $llx; + + /** + * @var int|float + */ + protected $lly; + + /** + * @var int|float + */ + protected $urx; + + /** + * @var int|float + */ + protected $ury; + + /** + * Create a rectangle instance by a PdfArray. + * + * @param PdfArray|mixed $array + * @param PdfParser $parser + * @return Rectangle + * @throws PdfTypeException + * @throws CrossReferenceException + * @throws PdfParserException + */ + public static function byPdfArray($array, PdfParser $parser) + { + $array = PdfArray::ensure(PdfType::resolve($array, $parser), 4)->value; + $ax = PdfNumeric::ensure(PdfType::resolve($array[0], $parser))->value; + $ay = PdfNumeric::ensure(PdfType::resolve($array[1], $parser))->value; + $bx = PdfNumeric::ensure(PdfType::resolve($array[2], $parser))->value; + $by = PdfNumeric::ensure(PdfType::resolve($array[3], $parser))->value; + + return new self($ax, $ay, $bx, $by); + } + + /** + * Rectangle constructor. + * + * @param float|int $ax + * @param float|int $ay + * @param float|int $bx + * @param float|int $by + */ + public function __construct($ax, $ay, $bx, $by) + { + $this->llx = \min($ax, $bx); + $this->lly = \min($ay, $by); + $this->urx = \max($ax, $bx); + $this->ury = \max($ay, $by); + } + + /** + * Get the width of the rectangle. + * + * @return float|int + */ + public function getWidth() + { + return $this->urx - $this->llx; + } + + /** + * Get the height of the rectangle. + * + * @return float|int + */ + public function getHeight() + { + return $this->ury - $this->lly; + } + + /** + * Get the lower left abscissa. + * + * @return float|int + */ + public function getLlx() + { + return $this->llx; + } + + /** + * Get the lower left ordinate. + * + * @return float|int + */ + public function getLly() + { + return $this->lly; + } + + /** + * Get the upper right abscissa. + * + * @return float|int + */ + public function getUrx() + { + return $this->urx; + } + + /** + * Get the upper right ordinate. + * + * @return float|int + */ + public function getUry() + { + return $this->ury; + } + + /** + * Get the rectangle as an array. + * + * @return array + */ + public function toArray() + { + return [ + $this->llx, + $this->lly, + $this->urx, + $this->ury + ]; + } + + /** + * Get the rectangle as a PdfArray. + * + * @return PdfArray + */ + public function toPdfArray() + { + $array = new PdfArray(); + $array->value[] = PdfNumeric::create($this->llx); + $array->value[] = PdfNumeric::create($this->lly); + $array->value[] = PdfNumeric::create($this->urx); + $array->value[] = PdfNumeric::create($this->ury); + + return $array; + } +} diff --git a/vendor/setasign/fpdi/src/PdfReader/Page.php b/vendor/setasign/fpdi/src/PdfReader/Page.php new file mode 100644 index 0000000..b207c79 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfReader/Page.php @@ -0,0 +1,271 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfReader; + +use setasign\Fpdi\PdfParser\Filter\FilterException; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfArray; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfNull; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfStream; +use setasign\Fpdi\PdfParser\Type\PdfType; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; +use setasign\Fpdi\PdfReader\DataStructure\Rectangle; +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; + +/** + * Class representing a page of a PDF document + */ +class Page +{ + /** + * @var PdfIndirectObject + */ + protected $pageObject; + + /** + * @var PdfDictionary + */ + protected $pageDictionary; + + /** + * @var PdfParser + */ + protected $parser; + + /** + * Inherited attributes + * + * @var null|array + */ + protected $inheritedAttributes; + + /** + * Page constructor. + * + * @param PdfIndirectObject $page + * @param PdfParser $parser + */ + public function __construct(PdfIndirectObject $page, PdfParser $parser) + { + $this->pageObject = $page; + $this->parser = $parser; + } + + /** + * Get the indirect object of this page. + * + * @return PdfIndirectObject + */ + public function getPageObject() + { + return $this->pageObject; + } + + /** + * Get the dictionary of this page. + * + * @return PdfDictionary + * @throws PdfParserException + * @throws PdfTypeException + * @throws CrossReferenceException + */ + public function getPageDictionary() + { + if (null === $this->pageDictionary) { + $this->pageDictionary = PdfDictionary::ensure(PdfType::resolve($this->getPageObject(), $this->parser)); + } + + return $this->pageDictionary; + } + + /** + * Get a page attribute. + * + * @param string $name + * @param bool $inherited + * @return PdfType|null + * @throws PdfParserException + * @throws PdfTypeException + * @throws CrossReferenceException + */ + public function getAttribute($name, $inherited = true) + { + $dict = $this->getPageDictionary(); + + if (isset($dict->value[$name])) { + return $dict->value[$name]; + } + + $inheritedKeys = ['Resources', 'MediaBox', 'CropBox', 'Rotate']; + if ($inherited && \in_array($name, $inheritedKeys, true)) { + if ($this->inheritedAttributes === null) { + $this->inheritedAttributes = []; + $inheritedKeys = \array_filter($inheritedKeys, function ($key) use ($dict) { + return !isset($dict->value[$key]); + }); + + if (\count($inheritedKeys) > 0) { + $parentDict = PdfType::resolve(PdfDictionary::get($dict, 'Parent'), $this->parser); + while ($parentDict instanceof PdfDictionary) { + foreach ($inheritedKeys as $index => $key) { + if (isset($parentDict->value[$key])) { + $this->inheritedAttributes[$key] = $parentDict->value[$key]; + unset($inheritedKeys[$index]); + } + } + + /** @noinspection NotOptimalIfConditionsInspection */ + if (isset($parentDict->value['Parent']) && \count($inheritedKeys) > 0) { + $parentDict = PdfType::resolve(PdfDictionary::get($parentDict, 'Parent'), $this->parser); + } else { + break; + } + } + } + } + + if (isset($this->inheritedAttributes[$name])) { + return $this->inheritedAttributes[$name]; + } + } + + return null; + } + + /** + * Get the rotation value. + * + * @return int + * @throws PdfParserException + * @throws PdfTypeException + * @throws CrossReferenceException + */ + public function getRotation() + { + $rotation = $this->getAttribute('Rotate'); + if (null === $rotation) { + return 0; + } + + $rotation = PdfNumeric::ensure(PdfType::resolve($rotation, $this->parser))->value % 360; + + if ($rotation < 0) { + $rotation += 360; + } + + return $rotation; + } + + /** + * Get a boundary of this page. + * + * @param string $box + * @param bool $fallback + * @return bool|Rectangle + * @throws PdfParserException + * @throws PdfTypeException + * @throws CrossReferenceException + * @see PageBoundaries + */ + public function getBoundary($box = PageBoundaries::CROP_BOX, $fallback = true) + { + $value = $this->getAttribute($box); + + if ($value !== null) { + return Rectangle::byPdfArray($value, $this->parser); + } + + if ($fallback === false) { + return false; + } + + switch ($box) { + case PageBoundaries::BLEED_BOX: + case PageBoundaries::TRIM_BOX: + case PageBoundaries::ART_BOX: + return $this->getBoundary(PageBoundaries::CROP_BOX, true); + case PageBoundaries::CROP_BOX: + return $this->getBoundary(PageBoundaries::MEDIA_BOX, true); + } + + return false; + } + + /** + * Get the width and height of this page. + * + * @param string $box + * @param bool $fallback + * @return array|bool + * @throws PdfParserException + * @throws PdfTypeException + * @throws CrossReferenceException + */ + public function getWidthAndHeight($box = PageBoundaries::CROP_BOX, $fallback = true) + { + $boundary = $this->getBoundary($box, $fallback); + if ($boundary === false) { + return false; + } + + $rotation = $this->getRotation(); + $interchange = ($rotation / 90) % 2; + + return [ + $interchange ? $boundary->getHeight() : $boundary->getWidth(), + $interchange ? $boundary->getWidth() : $boundary->getHeight() + ]; + } + + /** + * Get the raw content stream. + * + * @return string + * @throws PdfReaderException + * @throws PdfTypeException + * @throws FilterException + * @throws PdfParserException + */ + public function getContentStream() + { + $dict = $this->getPageDictionary(); + $contents = PdfType::resolve(PdfDictionary::get($dict, 'Contents'), $this->parser); + if ($contents instanceof PdfNull) { + return ''; + } + + if ($contents instanceof PdfArray) { + $result = []; + foreach ($contents->value as $content) { + $content = PdfType::resolve($content, $this->parser); + if (!($content instanceof PdfStream)) { + continue; + } + $result[] = $content->getUnfilteredStream(); + } + + return \implode("\n", $result); + } + + if ($contents instanceof PdfStream) { + return $contents->getUnfilteredStream(); + } + + throw new PdfReaderException( + 'Array or stream expected.', + PdfReaderException::UNEXPECTED_DATA_TYPE + ); + } +} diff --git a/vendor/setasign/fpdi/src/PdfReader/PageBoundaries.php b/vendor/setasign/fpdi/src/PdfReader/PageBoundaries.php new file mode 100644 index 0000000..9a6a1f3 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfReader/PageBoundaries.php @@ -0,0 +1,94 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfReader; + +/** + * An abstract class for page boundary constants and some helper methods + */ +abstract class PageBoundaries +{ + /** + * MediaBox + * + * The media box defines the boundaries of the physical medium on which the page is to be printed. + * + * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries + * @var string + */ + const MEDIA_BOX = 'MediaBox'; + + /** + * CropBox + * + * The crop box defines the region to which the contents of the page shall be clipped (cropped) when displayed or + * printed. + * + * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries + * @var string + */ + const CROP_BOX = 'CropBox'; + + /** + * BleedBox + * + * The bleed box defines the region to which the contents of the page shall be clipped when output in a + * production environment. + * + * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries + * @var string + */ + const BLEED_BOX = 'BleedBox'; + + /** + * TrimBox + * + * The trim box defines the intended dimensions of the finished page after trimming. + * + * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries + * @var string + */ + const TRIM_BOX = 'TrimBox'; + + /** + * ArtBox + * + * The art box defines the extent of the page’s meaningful content (including potential white space) as intended + * by the page’s creator. + * + * @see PDF 32000-1:2008 - 14.11.2 Page Boundaries + * @var string + */ + const ART_BOX = 'ArtBox'; + + /** + * All page boundaries + * + * @var array + */ + public static $all = array( + self::MEDIA_BOX, + self::CROP_BOX, + self::BLEED_BOX, + self::TRIM_BOX, + self::ART_BOX + ); + + /** + * Checks if a name is a valid page boundary name. + * + * @param string $name The boundary name + * @return boolean A boolean value whether the name is valid or not. + */ + public static function isValidName($name) + { + return \in_array($name, self::$all, true); + } +} diff --git a/vendor/setasign/fpdi/src/PdfReader/PdfReader.php b/vendor/setasign/fpdi/src/PdfReader/PdfReader.php new file mode 100644 index 0000000..3ee8878 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfReader/PdfReader.php @@ -0,0 +1,234 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfReader; + +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\PdfParser; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfArray; +use setasign\Fpdi\PdfParser\Type\PdfDictionary; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObjectReference; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfType; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; + +/** + * A PDF reader class + */ +class PdfReader +{ + /** + * @var PdfParser + */ + protected $parser; + + /** + * @var int + */ + protected $pageCount; + + /** + * Indirect objects of resolved pages. + * + * @var PdfIndirectObjectReference[]|PdfIndirectObject[] + */ + protected $pages = []; + + /** + * PdfReader constructor. + * + * @param PdfParser $parser + */ + public function __construct(PdfParser $parser) + { + $this->parser = $parser; + } + + /** + * PdfReader destructor. + */ + public function __destruct() + { + if ($this->parser !== null) { + $this->parser->cleanUp(); + } + } + + /** + * Get the pdf parser instance. + * + * @return PdfParser + */ + public function getParser() + { + return $this->parser; + } + + /** + * Get the PDF version. + * + * @return string + * @throws PdfParserException + */ + public function getPdfVersion() + { + return \implode('.', $this->parser->getPdfVersion()); + } + + /** + * Get the page count. + * + * @return int + * @throws PdfTypeException + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function getPageCount() + { + if ($this->pageCount === null) { + $catalog = $this->parser->getCatalog(); + + $pages = PdfType::resolve(PdfDictionary::get($catalog, 'Pages'), $this->parser); + $count = PdfType::resolve(PdfDictionary::get($pages, 'Count'), $this->parser); + + $this->pageCount = PdfNumeric::ensure($count)->value; + } + + return $this->pageCount; + } + + /** + * Get a page instance. + * + * @param int $pageNumber + * @return Page + * @throws PdfTypeException + * @throws CrossReferenceException + * @throws PdfParserException + * @throws \InvalidArgumentException + */ + public function getPage($pageNumber) + { + if (!\is_numeric($pageNumber)) { + throw new \InvalidArgumentException( + 'Page number needs to be a number.' + ); + } + + if ($pageNumber < 1 || $pageNumber > $this->getPageCount()) { + throw new \InvalidArgumentException( + \sprintf( + 'Page number "%s" out of available page range (1 - %s)', + $pageNumber, + $this->getPageCount() + ) + ); + } + + $this->readPages(); + + $page = $this->pages[$pageNumber - 1]; + + if ($page instanceof PdfIndirectObjectReference) { + $readPages = function ($kids) use (&$readPages) { + $kids = PdfArray::ensure($kids); + + /** @noinspection LoopWhichDoesNotLoopInspection */ + foreach ($kids->value as $reference) { + $reference = PdfIndirectObjectReference::ensure($reference); + $object = $this->parser->getIndirectObject($reference->value); + $type = PdfDictionary::get($object->value, 'Type'); + + if ($type->value === 'Pages') { + return $readPages(PdfDictionary::get($object->value, 'Kids')); + } + + return $object; + } + + throw new PdfReaderException( + 'Kids array cannot be empty.', + PdfReaderException::KIDS_EMPTY + ); + }; + + $page = $this->parser->getIndirectObject($page->value); + $dict = PdfType::resolve($page, $this->parser); + $type = PdfDictionary::get($dict, 'Type'); + + if ($type->value === 'Pages') { + $kids = PdfType::resolve(PdfDictionary::get($dict, 'Kids'), $this->parser); + try { + $page = $this->pages[$pageNumber - 1] = $readPages($kids); + } catch (PdfReaderException $e) { + if ($e->getCode() !== PdfReaderException::KIDS_EMPTY) { + throw $e; + } + + // let's reset the pages array and read all page objects + $this->pages = []; + $this->readPages(true); + // @phpstan-ignore-next-line + $page = $this->pages[$pageNumber - 1]; + } + } else { + $this->pages[$pageNumber - 1] = $page; + } + } + + return new Page($page, $this->parser); + } + + /** + * Walk the page tree and resolve all indirect objects of all pages. + * + * @param bool $readAll + * @throws CrossReferenceException + * @throws PdfParserException + * @throws PdfTypeException + */ + protected function readPages($readAll = false) + { + if (\count($this->pages) > 0) { + return; + } + + $readPages = function ($kids, $count) use (&$readPages, $readAll) { + $kids = PdfArray::ensure($kids); + $isLeaf = ($count->value === \count($kids->value)); + + foreach ($kids->value as $reference) { + $reference = PdfIndirectObjectReference::ensure($reference); + + if (!$readAll && $isLeaf) { + $this->pages[] = $reference; + continue; + } + + $object = $this->parser->getIndirectObject($reference->value); + $type = PdfDictionary::get($object->value, 'Type'); + + if ($type->value === 'Pages') { + $readPages(PdfDictionary::get($object->value, 'Kids'), PdfDictionary::get($object->value, 'Count')); + } else { + $this->pages[] = $object; + } + } + }; + + $catalog = $this->parser->getCatalog(); + $pages = PdfType::resolve(PdfDictionary::get($catalog, 'Pages'), $this->parser); + $count = PdfType::resolve(PdfDictionary::get($pages, 'Count'), $this->parser); + $kids = PdfType::resolve(PdfDictionary::get($pages, 'Kids'), $this->parser); + $readPages($kids, $count); + } +} diff --git a/vendor/setasign/fpdi/src/PdfReader/PdfReaderException.php b/vendor/setasign/fpdi/src/PdfReader/PdfReaderException.php new file mode 100644 index 0000000..99f7d12 --- /dev/null +++ b/vendor/setasign/fpdi/src/PdfReader/PdfReaderException.php @@ -0,0 +1,34 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\PdfReader; + +use setasign\Fpdi\FpdiException; + +/** + * Exception for the pdf reader class + */ +class PdfReaderException extends FpdiException +{ + /** + * @var int + */ + const KIDS_EMPTY = 0x0101; + + /** + * @var int + */ + const UNEXPECTED_DATA_TYPE = 0x0102; + + /** + * @var int + */ + const MISSING_DATA = 0x0103; +} diff --git a/vendor/setasign/fpdi/src/Tcpdf/Fpdi.php b/vendor/setasign/fpdi/src/Tcpdf/Fpdi.php new file mode 100644 index 0000000..159f97b --- /dev/null +++ b/vendor/setasign/fpdi/src/Tcpdf/Fpdi.php @@ -0,0 +1,270 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\Tcpdf; + +use setasign\Fpdi\FpdiTrait; +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\Filter\AsciiHex; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfHexString; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfNull; +use setasign\Fpdi\PdfParser\Type\PdfNumeric; +use setasign\Fpdi\PdfParser\Type\PdfStream; +use setasign\Fpdi\PdfParser\Type\PdfString; +use setasign\Fpdi\PdfParser\Type\PdfType; +use setasign\Fpdi\PdfParser\Type\PdfTypeException; + +/** + * Class Fpdi + * + * This class let you import pages of existing PDF documents into a reusable structure for TCPDF. + * + * @method _encrypt_data(int $n, string $s) string + */ +class Fpdi extends \TCPDF +{ + use FpdiTrait { + writePdfType as fpdiWritePdfType; + useImportedPage as fpdiUseImportedPage; + } + + /** + * FPDI version + * + * @string + */ + const VERSION = '2.3.6'; + + /** + * A counter for template ids. + * + * @var int + */ + protected $templateId = 0; + + /** + * The currently used object number. + * + * @var int|null + */ + protected $currentObjectNumber; + + protected function _enddoc() + { + parent::_enddoc(); + $this->cleanUp(); + } + + /** + * Get the next template id. + * + * @return int + */ + protected function getNextTemplateId() + { + return $this->templateId++; + } + + /** + * Draws an imported page onto the page or another template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size + * @see FpdiTrait::getTemplateSize() + */ + public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + return $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize); + } + + /** + * Draws an imported page onto the page. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $pageId The page id + * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size. + * @see Fpdi::getTemplateSize() + */ + public function useImportedPage($pageId, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + $size = $this->fpdiUseImportedPage($pageId, $x, $y, $width, $height, $adjustPageSize); + if ($this->inxobj) { + $importedPage = $this->importedPages[$pageId]; + $this->xobjects[$this->xobjid]['importedPages'][$importedPage['id']] = $pageId; + } + + return $size; + } + + /** + * Get the size of an imported page. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P) + */ + public function getTemplateSize($tpl, $width = null, $height = null) + { + return $this->getImportedPageSize($tpl, $width, $height); + } + + /** + * @inheritdoc + */ + protected function _getxobjectdict() + { + $out = parent::_getxobjectdict(); + + foreach ($this->importedPages as $key => $pageData) { + $out .= '/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R '; + } + + return $out; + } + + /** + * @inheritdoc + * @throws CrossReferenceException + * @throws PdfParserException + */ + protected function _putxobjects() + { + foreach ($this->importedPages as $key => $pageData) { + $this->currentObjectNumber = $this->_newobj(); + $this->importedPages[$key]['objectNumber'] = $this->currentObjectNumber; + $this->currentReaderId = $pageData['readerId']; + $this->writePdfType($pageData['stream']); + $this->_put('endobj'); + } + + foreach (\array_keys($this->readers) as $readerId) { + $parser = $this->getPdfReader($readerId)->getParser(); + $this->currentReaderId = $readerId; + + while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) { + try { + $object = $parser->getIndirectObject($objectNumber); + } catch (CrossReferenceException $e) { + if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) { + $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull()); + } else { + throw $e; + } + } + + $this->writePdfType($object); + } + } + + // let's prepare resources for imported pages in templates + foreach ($this->xobjects as $xObjectId => $data) { + if (!isset($data['importedPages'])) { + continue; + } + + foreach ($data['importedPages'] as $id => $pageKey) { + $page = $this->importedPages[$pageKey]; + $this->xobjects[$xObjectId]['xobjects'][$id] = ['n' => $page['objectNumber']]; + } + } + + + parent::_putxobjects(); + $this->currentObjectNumber = null; + } + + /** + * Append content to the buffer of TCPDF. + * + * @param string $s + * @param bool $newLine + */ + protected function _put($s, $newLine = true) + { + if ($newLine) { + $this->setBuffer($s . "\n"); + } else { + $this->setBuffer($s); + } + } + + /** + * Begin a new object and return the object number. + * + * @param int|string $objid Object ID (leave empty to get a new ID). + * @return int object number + */ + protected function _newobj($objid = '') + { + $this->_out($this->_getobj($objid)); + return $this->n; + } + + /** + * Writes a PdfType object to the resulting buffer. + * + * @param PdfType $value + * @throws PdfTypeException + */ + protected function writePdfType(PdfType $value) + { + if (!$this->encrypted) { + $this->fpdiWritePdfType($value); + return; + } + + if ($value instanceof PdfString) { + $string = PdfString::unescape($value->value); + $string = $this->_encrypt_data($this->currentObjectNumber, $string); + $value->value = \TCPDF_STATIC::_escape($string); + } elseif ($value instanceof PdfHexString) { + $filter = new AsciiHex(); + $string = $filter->decode($value->value); + $string = $this->_encrypt_data($this->currentObjectNumber, $string); + $value->value = $filter->encode($string, true); + } elseif ($value instanceof PdfStream) { + $stream = $value->getStream(); + $stream = $this->_encrypt_data($this->currentObjectNumber, $stream); + $dictionary = $value->value; + $dictionary->value['Length'] = PdfNumeric::create(\strlen($stream)); + $value = PdfStream::create($dictionary, $stream); + } elseif ($value instanceof PdfIndirectObject) { + /** + * @var PdfIndirectObject $value + */ + $this->currentObjectNumber = $this->objectMap[$this->currentReaderId][$value->objectNumber]; + } + + $this->fpdiWritePdfType($value); + } +} diff --git a/vendor/setasign/fpdi/src/TcpdfFpdi.php b/vendor/setasign/fpdi/src/TcpdfFpdi.php new file mode 100644 index 0000000..9e6825b --- /dev/null +++ b/vendor/setasign/fpdi/src/TcpdfFpdi.php @@ -0,0 +1,23 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi; + +/** + * Class TcpdfFpdi + * + * This class let you import pages of existing PDF documents into a reusable structure for TCPDF. + * + * @deprecated Class was moved to \setasign\Fpdi\Tcpdf\Fpdi + */ +class TcpdfFpdi extends \setasign\Fpdi\Tcpdf\Fpdi +{ + // this class is moved to \setasign\Fpdi\Tcpdf\Fpdi +} diff --git a/vendor/setasign/fpdi/src/Tfpdf/FpdfTpl.php b/vendor/setasign/fpdi/src/Tfpdf/FpdfTpl.php new file mode 100644 index 0000000..c00d53d --- /dev/null +++ b/vendor/setasign/fpdi/src/Tfpdf/FpdfTpl.php @@ -0,0 +1,23 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\Tfpdf; + +use setasign\Fpdi\FpdfTplTrait; + +/** + * Class FpdfTpl + * + * We need to change some access levels and implement the setPageFormat() method to bring back compatibility to tFPDF. + */ +class FpdfTpl extends \tFPDF +{ + use FpdfTplTrait; +} diff --git a/vendor/setasign/fpdi/src/Tfpdf/Fpdi.php b/vendor/setasign/fpdi/src/Tfpdf/Fpdi.php new file mode 100644 index 0000000..77f340f --- /dev/null +++ b/vendor/setasign/fpdi/src/Tfpdf/Fpdi.php @@ -0,0 +1,154 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +namespace setasign\Fpdi\Tfpdf; + +use setasign\Fpdi\FpdiTrait; +use setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException; +use setasign\Fpdi\PdfParser\PdfParserException; +use setasign\Fpdi\PdfParser\Type\PdfIndirectObject; +use setasign\Fpdi\PdfParser\Type\PdfNull; + +/** + * Class Fpdi + * + * This class let you import pages of existing PDF documents into a reusable structure for tFPDF. + */ +class Fpdi extends FpdfTpl +{ + use FpdiTrait; + + /** + * FPDI version + * + * @string + */ + const VERSION = '2.3.6'; + + public function _enddoc() + { + parent::_enddoc(); + $this->cleanUp(); + } + + /** + * Draws an imported page or a template onto the page or another template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|array $x The abscissa of upper-left corner. Alternatively you could use an assoc array + * with the keys "x", "y", "width", "height", "adjustPageSize". + * @param float|int $y The ordinate of upper-left corner. + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @param bool $adjustPageSize + * @return array The size + * @see Fpdi::getTemplateSize() + */ + public function useTemplate($tpl, $x = 0, $y = 0, $width = null, $height = null, $adjustPageSize = false) + { + if (isset($this->importedPages[$tpl])) { + $size = $this->useImportedPage($tpl, $x, $y, $width, $height, $adjustPageSize); + if ($this->currentTemplateId !== null) { + $this->templates[$this->currentTemplateId]['resources']['templates']['importedPages'][$tpl] = $tpl; + } + return $size; + } + + return parent::useTemplate($tpl, $x, $y, $width, $height, $adjustPageSize); + } + + /** + * Get the size of an imported page or template. + * + * Give only one of the size parameters (width, height) to calculate the other one automatically in view to the + * aspect ratio. + * + * @param mixed $tpl The template id + * @param float|int|null $width The width. + * @param float|int|null $height The height. + * @return array|bool An array with following keys: width, height, 0 (=width), 1 (=height), orientation (L or P) + */ + public function getTemplateSize($tpl, $width = null, $height = null) + { + $size = parent::getTemplateSize($tpl, $width, $height); + if ($size === false) { + return $this->getImportedPageSize($tpl, $width, $height); + } + + return $size; + } + + /** + * @inheritdoc + * @throws CrossReferenceException + * @throws PdfParserException + */ + public function _putimages() + { + $this->currentReaderId = null; + parent::_putimages(); + + foreach ($this->importedPages as $key => $pageData) { + $this->_newobj(); + $this->importedPages[$key]['objectNumber'] = $this->n; + $this->currentReaderId = $pageData['readerId']; + $this->writePdfType($pageData['stream']); + $this->_put('endobj'); + } + + foreach (\array_keys($this->readers) as $readerId) { + $parser = $this->getPdfReader($readerId)->getParser(); + $this->currentReaderId = $readerId; + + while (($objectNumber = \array_pop($this->objectsToCopy[$readerId])) !== null) { + try { + $object = $parser->getIndirectObject($objectNumber); + } catch (CrossReferenceException $e) { + if ($e->getCode() === CrossReferenceException::OBJECT_NOT_FOUND) { + $object = PdfIndirectObject::create($objectNumber, 0, new PdfNull()); + } else { + throw $e; + } + } + + $this->writePdfType($object); + } + } + + $this->currentReaderId = null; + } + + /** + * @inheritdoc + */ + protected function _putxobjectdict() + { + foreach ($this->importedPages as $key => $pageData) { + $this->_put('/' . $pageData['id'] . ' ' . $pageData['objectNumber'] . ' 0 R'); + } + + parent::_putxobjectdict(); + } + + /** + * @inheritdoc + */ + protected function _put($s, $newLine = true) + { + if ($newLine) { + $this->buffer .= $s . "\n"; + } else { + $this->buffer .= $s; + } + } +} diff --git a/vendor/setasign/fpdi/src/autoload.php b/vendor/setasign/fpdi/src/autoload.php new file mode 100644 index 0000000..4c3df9d --- /dev/null +++ b/vendor/setasign/fpdi/src/autoload.php @@ -0,0 +1,21 @@ +<?php + +/** + * This file is part of FPDI + * + * @package setasign\Fpdi + * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com) + * @license http://opensource.org/licenses/mit-license The MIT License + */ + +spl_autoload_register(static function ($class) { + if (strpos($class, 'setasign\Fpdi\\') === 0) { + $filename = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 14)) . '.php'; + $fullpath = __DIR__ . DIRECTORY_SEPARATOR . $filename; + + if (is_file($fullpath)) { + /** @noinspection PhpIncludeInspection */ + require_once $fullpath; + } + } +}); |