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Theodotos Andreou 2018-01-14 13:10:16 +00:00
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114
sites/all/modules/civicrm/packages/FPDI/filters/FilterASCII85.php Normal file
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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* Class FilterASCII85
*/
class FilterASCII85
{
/**
* Decode ASCII85 encoded string
*
* @param string $in
* @return string
* @throws Exception
*/
public function decode($in)
{
$ord = array(
'~' => ord('~'),
'z' => ord('z'),
'u' => ord('u'),
'z' => ord('z'),
'!' => ord('!')
);
$out = '';
$state = 0;
$chn = null;
$l = strlen($in);
for ($k = 0; $k < $l; ++$k) {
$ch = ord($in[$k]) & 0xff;
if ($ch == $ord['~']) {
break;
}
if (preg_match('/^\s$/',chr($ch))) {
continue;
}
if ($ch == $ord['z'] && $state == 0) {
$out .= chr(0) . chr(0) . chr(0) . chr(0);
continue;
}
if ($ch < $ord['!'] || $ch > $ord['u']) {
throw new Exception('Illegal character in ASCII85Decode.');
}
$chn[$state++] = $ch - $ord['!'];
if ($state == 5) {
$state = 0;
$r = 0;
for ($j = 0; $j < 5; ++$j)
$r = $r * 85 + $chn[$j];
$out .= chr($r >> 24);
$out .= chr($r >> 16);
$out .= chr($r >> 8);
$out .= chr($r);
}
}
$r = 0;
if ($state == 1) {
throw new Exception('Illegal length in ASCII85Decode.');
}
if ($state == 2) {
$r = $chn[0] * 85 * 85 * 85 * 85 + ($chn[1]+1) * 85 * 85 * 85;
$out .= chr($r >> 24);
} else if ($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);
} else if ($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;
}
/**
* NOT IMPLEMENTED
*
* @param string $in
* @return string
* @throws LogicException
*/
public function encode($in)
{
throw new LogicException("ASCII85 encoding not implemented.");
}
}

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sites/all/modules/civicrm/packages/FPDI/filters/FilterASCIIHexDecode.php Normal file
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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* Class FilterASCIIHexDecode
*/
class FilterASCIIHexDecode
{
/**
* Converts an ASCII hexadecimal encoded string into it's 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)
{
return current(unpack('H*', $data)) . ($leaveEOD ? '' : '>');
}
}

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sites/all/modules/civicrm/packages/FPDI/filters/FilterLZW.php Normal file
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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* Class FilterLZW
*/
class FilterLZW
{
protected $_sTable = array();
protected $_data = null;
protected $_dataLength = 0;
protected $_tIdx;
protected $_bitsToGet = 9;
protected $_bytePointer;
protected $_bitPointer;
protected $_nextData = 0;
protected $_nextBits = 0;
protected $_andTable = array(511, 1023, 2047, 4095);
/**
* Decodes LZW compressed data.
*
* @param string $data The compressed data.
* @throws Exception
* @return string
*/
public function decode($data)
{
if ($data[0] == 0x00 && $data[1] == 0x01) {
throw new Exception('LZW flavour not supported.');
}
$this->_initsTable();
$this->_data = $data;
$this->_dataLength = strlen($data);
// Initialize pointers
$this->_bytePointer = 0;
$this->_bitPointer = 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;
}
if (!isset($this->_sTable[$code])) {
throw new Exception('Error while decompression LZW compressed data.');
}
$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 . $string[0];
$unCompData .= $string;
$this->_addStringToTable($string);
$oldCode = $code;
}
}
}
return $unCompData;
}
/**
* Initialize the string table.
*/
protected function _initsTable()
{
$this->_sTable = array();
for ($i = 0; $i < 256; $i++)
$this->_sTable[$i] = chr($i);
$this->_tIdx = 258;
$this->_bitsToGet = 9;
}
/**
* Add a new string to the string table.
*/
protected function _addStringToTable($oldString, $newString = '')
{
$string = $oldString . $newString;
// Add this new String to the table
$this->_sTable[$this->_tIdx++] = $string;
if ($this->_tIdx == 511) {
$this->_bitsToGet = 10;
} else if ($this->_tIdx == 1023) {
$this->_bitsToGet = 11;
} else if ($this->_tIdx == 2047) {
$this->_bitsToGet = 12;
}
}
/**
* Returns the next 9, 10, 11 or 12 bits
*
* @return int
*/
protected function _getNextCode()
{
if ($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;
}
/**
* NOT IMPLEMENTED
*
* @param string $in
* @return string
* @throws LogicException
*/
public function encode($in)
{
throw new LogicException("LZW encoding not implemented.");
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
require_once('fpdi_bridge.php');
/**
* Class FPDF_TPL
*/
class FPDF_TPL extends fpdi_bridge
{
/**
* Array of template data
*
* @var array
*/
protected $_tpls = array();
/**
* Current Template-Id
*
* @var int
*/
public $tpl = 0;
/**
* "In Template"-Flag
*
* @var boolean
*/
protected $_inTpl = false;
/**
* Name prefix of templates used in Resources dictionary
*
* @var string A String defining the Prefix used as Template-Object-Names. Have to begin with an /
*/
public $tplPrefix = "/TPL";
/**
* Resources used by templates and pages
*
* @var array
*/
protected $_res = array();
/**
* Last used template data
*
* @var array
*/
public $lastUsedTemplateData = array();
/**
* Start a template.
*
* This method starts a template. You can give own coordinates to build an own sized
* template. Pay attention, that the margins are adapted to the new template size.
* If you want to write outside the template, for example to build a clipped template,
* you have to set the margins and "cursor"-position manual after beginTemplate()-call.
*
* If no parameter is given, the template uses the current page-size.
* The method returns an id of the current template. This id is used later for using this template.
* Warning: A created template is saved in the resulting PDF at all events. Also if you don't use it after creation!
*
* @param int $x The x-coordinate given in user-unit
* @param int $y The y-coordinate given in user-unit
* @param int $w The width given in user-unit
* @param int $h The height given in user-unit
* @return int The id of new created template
* @throws LogicException
*/
public function beginTemplate($x = null, $y = null, $w = null, $h = null)
{
if (is_subclass_of($this, 'TCPDF')) {
throw new LogicException('This method is only usable with FPDF. Use TCPDF methods startTemplate() instead.');
}
if ($this->page <= 0) {
throw new LogicException("You have to add at least a page first!");
}
if ($x == null)
$x = 0;
if ($y == null)
$y = 0;
if ($w == null)
$w = $this->w;
if ($h == null)
$h = $this->h;
// Save settings
$this->tpl++;
$tpl =& $this->_tpls[$this->tpl];
$tpl = array(
'o_x' => $this->x,
'o_y' => $this->y,
'o_AutoPageBreak' => $this->AutoPageBreak,
'o_bMargin' => $this->bMargin,
'o_tMargin' => $this->tMargin,
'o_lMargin' => $this->lMargin,
'o_rMargin' => $this->rMargin,
'o_h' => $this->h,
'o_w' => $this->w,
'o_FontFamily' => $this->FontFamily,
'o_FontStyle' => $this->FontStyle,
'o_FontSizePt' => $this->FontSizePt,
'o_FontSize' => $this->FontSize,
'buffer' => '',
'x' => $x,
'y' => $y,
'w' => $w,
'h' => $h
);
$this->SetAutoPageBreak(false);
// Define own high and width to calculate correct positions
$this->h = $h;
$this->w = $w;
$this->_inTpl = true;
$this->SetXY($x + $this->lMargin, $y + $this->tMargin);
$this->SetRightMargin($this->w - $w + $this->rMargin);
if ($this->CurrentFont) {
$fontKey = $this->FontFamily . $this->FontStyle;
if ($fontKey) {
$this->_res['tpl'][$this->tpl]['fonts'][$fontKey] =& $this->fonts[$fontKey];
$this->_out(sprintf('BT /F%d %.2f Tf ET', $this->CurrentFont['i'], $this->FontSizePt));
}
}
return $this->tpl;
}
/**
* End template.
*
* This method ends a template and reset initiated variables collected in {@link beginTemplate()}.
*
* @return int|boolean If a template is opened, the id is returned. If not a false is returned.
*/
public function endTemplate()
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::endTemplate'), $args);
}
if ($this->_inTpl) {
$this->_inTpl = false;
$tpl = $this->_tpls[$this->tpl];
$this->SetXY($tpl['o_x'], $tpl['o_y']);
$this->tMargin = $tpl['o_tMargin'];
$this->lMargin = $tpl['o_lMargin'];
$this->rMargin = $tpl['o_rMargin'];
$this->h = $tpl['o_h'];
$this->w = $tpl['o_w'];
$this->SetAutoPageBreak($tpl['o_AutoPageBreak'], $tpl['o_bMargin']);
$this->FontFamily = $tpl['o_FontFamily'];
$this->FontStyle = $tpl['o_FontStyle'];
$this->FontSizePt = $tpl['o_FontSizePt'];
$this->FontSize = $tpl['o_FontSize'];
$fontKey = $this->FontFamily . $this->FontStyle;
if ($fontKey)
$this->CurrentFont =& $this->fonts[$fontKey];
return $this->tpl;
} else {
return false;
}
}
/**
* Use a template in current page or other template.
*
* You can use a template in a page or in another template.
* You can give the used template a new size.
* All parameters are optional. The width or height is calculated automatically
* if one is given. If no parameter is given the origin size as defined in
* {@link beginTemplate()} method is used.
*
* The calculated or used width and height are returned as an array.
*
* @param int $tplIdx A valid template-id
* @param int $x The x-position
* @param int $y The y-position
* @param int $w The new width of the template
* @param int $h The new height of the template
* @return array The height and width of the template (array('w' => ..., 'h' => ...))
* @throws LogicException|InvalidArgumentException
*/
public function useTemplate($tplIdx, $x = null, $y = null, $w = 0, $h = 0)
{
if ($this->page <= 0) {
throw new LogicException('You have to add at least a page first!');
}
if (!isset($this->_tpls[$tplIdx])) {
throw new InvalidArgumentException('Template does not exist!');
}
if ($this->_inTpl) {
$this->_res['tpl'][$this->tpl]['tpls'][$tplIdx] =& $this->_tpls[$tplIdx];
}
$tpl = $this->_tpls[$tplIdx];
$_w = $tpl['w'];
$_h = $tpl['h'];
if ($x == null) {
$x = 0;
}
if ($y == null) {
$y = 0;
}
$x += $tpl['x'];
$y += $tpl['y'];
$wh = $this->getTemplateSize($tplIdx, $w, $h);
$w = $wh['w'];
$h = $wh['h'];
$tplData = array(
'x' => $this->x,
'y' => $this->y,
'w' => $w,
'h' => $h,
'scaleX' => ($w / $_w),
'scaleY' => ($h / $_h),
'tx' => $x,
'ty' => ($this->h - $y - $h),
'lty' => ($this->h - $y - $h) - ($this->h - $_h) * ($h / $_h)
);
$this->_out(sprintf('q %.4F 0 0 %.4F %.4F %.4F cm',
$tplData['scaleX'], $tplData['scaleY'], $tplData['tx'] * $this->k, $tplData['ty'] * $this->k)
); // Translate
$this->_out(sprintf('%s%d Do Q', $this->tplPrefix, $tplIdx));
$this->lastUsedTemplateData = $tplData;
return array('w' => $w, 'h' => $h);
}
/**
* Get the calculated size of a template.
*
* If one size is given, this method calculates the other one.
*
* @param int $tplIdx A valid template-id
* @param int $w The width of the template
* @param int $h The height of the template
* @return array The height and width of the template (array('w' => ..., 'h' => ...))
*/
public function getTemplateSize($tplIdx, $w = 0, $h = 0)
{
if (!isset($this->_tpls[$tplIdx]))
return false;
$tpl = $this->_tpls[$tplIdx];
$_w = $tpl['w'];
$_h = $tpl['h'];
if ($w == 0 && $h == 0) {
$w = $_w;
$h = $_h;
}
if ($w == 0)
$w = $h * $_w / $_h;
if($h == 0)
$h = $w * $_h / $_w;
return array("w" => $w, "h" => $h);
}
/**
* Sets the font used to print character strings.
*
* See FPDF/TCPDF documentation.
*
* @see http://fpdf.org/en/doc/setfont.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#afd56e360c43553830d543323e81bc045
*/
public function SetFont($family, $style = '', $size = null, $fontfile = '', $subset = 'default', $out = true)
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::SetFont'), $args);
}
parent::SetFont($family, $style, $size);
$fontkey = $this->FontFamily . $this->FontStyle;
if ($this->_inTpl) {
$this->_res['tpl'][$this->tpl]['fonts'][$fontkey] =& $this->fonts[$fontkey];
} else {
$this->_res['page'][$this->page]['fonts'][$fontkey] =& $this->fonts[$fontkey];
}
}
/**
* Puts an image.
*
* See FPDF/TCPDF documentation.
*
* @see http://fpdf.org/en/doc/image.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#a714c2bee7d6b39d4d6d304540c761352
*/
public function Image(
$file, $x = '', $y = '', $w = 0, $h = 0, $type = '', $link = '', $align = '', $resize = false,
$dpi = 300, $palign = '', $ismask = false, $imgmask = false, $border = 0, $fitbox = false,
$hidden = false, $fitonpage = false, $alt = false, $altimgs = array()
)
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::Image'), $args);
}
$ret = parent::Image($file, $x, $y, $w, $h, $type, $link);
if ($this->_inTpl) {
$this->_res['tpl'][$this->tpl]['images'][$file] =& $this->images[$file];
} else {
$this->_res['page'][$this->page]['images'][$file] =& $this->images[$file];
}
return $ret;
}
/**
* Adds a new page to the document.
*
* See FPDF/TCPDF documentation.
*
* This method cannot be used if you'd started a template.
*
* @see http://fpdf.org/en/doc/addpage.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#a5171e20b366b74523709d84c349c1ced
*/
public function AddPage($orientation = '', $format = '', $keepmargins = false, $tocpage = false)
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::AddPage'), $args);
}
if ($this->_inTpl) {
throw new LogicException('Adding pages in templates is not possible!');
}
parent::AddPage($orientation, $format);
}
/**
* Puts a link on a rectangular area of the page.
*
* Overwritten because adding links in a template will not work.
*
* @see http://fpdf.org/en/doc/link.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#ab87bf1826384fbfe30eb499d42f1d994
*/
public function Link($x, $y, $w, $h, $link, $spaces = 0)
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::Link'), $args);
}
if ($this->_inTpl) {
throw new LogicException('Using links in templates is not posible!');
}
parent::Link($x, $y, $w, $h, $link);
}
/**
* Creates a new internal link and returns its identifier.
*
* Overwritten because adding links in a template will not work.
*
* @see http://fpdf.org/en/doc/addlink.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#a749522038ed7786c3e1701435dcb891e
*/
public function AddLink()
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::AddLink'), $args);
}
if ($this->_inTpl) {
throw new LogicException('Adding links in templates is not possible!');
}
return parent::AddLink();
}
/**
* Defines the page and position a link points to.
*
* Overwritten because adding links in a template will not work.
*
* @see http://fpdf.org/en/doc/setlink.htm
* @see http://www.tcpdf.org/doc/code/classTCPDF.html#ace5be60e7857953ea5e2b89cb90df0ae
*/
public function SetLink($link, $y = 0, $page = -1)
{
if (is_subclass_of($this, 'TCPDF')) {
$args = func_get_args();
return call_user_func_array(array($this, 'TCPDF::SetLink'), $args);
}
if ($this->_inTpl) {
throw new LogicException('Setting links in templates is not possible!');
}
parent::SetLink($link, $y, $page);
}
/**
* Writes the form XObjects to the PDF document.
*/
protected function _putformxobjects()
{
$filter=($this->compress) ? '/Filter /FlateDecode ' : '';
reset($this->_tpls);
foreach($this->_tpls AS $tplIdx => $tpl) {
$this->_newobj();
$this->_tpls[$tplIdx]['n'] = $this->n;
$this->_out('<<'.$filter.'/Type /XObject');
$this->_out('/Subtype /Form');
$this->_out('/FormType 1');
$this->_out(sprintf('/BBox [%.2F %.2F %.2F %.2F]',
// llx
$tpl['x'] * $this->k,
// lly
-$tpl['y'] * $this->k,
// urx
($tpl['w'] + $tpl['x']) * $this->k,
// ury
($tpl['h'] - $tpl['y']) * $this->k
));
if ($tpl['x'] != 0 || $tpl['y'] != 0) {
$this->_out(sprintf('/Matrix [1 0 0 1 %.5F %.5F]',
-$tpl['x'] * $this->k * 2, $tpl['y'] * $this->k * 2
));
}
$this->_out('/Resources ');
$this->_out('<</ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
if (isset($this->_res['tpl'][$tplIdx])) {
$res = $this->_res['tpl'][$tplIdx];
if (isset($res['fonts']) && count($res['fonts'])) {
$this->_out('/Font <<');
foreach($res['fonts'] as $font) {
$this->_out('/F' . $font['i'] . ' ' . $font['n'] . ' 0 R');
}
$this->_out('>>');
}
if(isset($res['images']) || isset($res['tpls'])) {
$this->_out('/XObject <<');
if (isset($res['images'])) {
foreach($res['images'] as $image)
$this->_out('/I' . $image['i'] . ' ' . $image['n'] . ' 0 R');
}
if (isset($res['tpls'])) {
foreach($res['tpls'] as $i => $_tpl)
$this->_out($this->tplPrefix . $i . ' ' . $_tpl['n'] . ' 0 R');
}
$this->_out('>>');
}
}
$this->_out('>>');
$buffer = ($this->compress) ? gzcompress($tpl['buffer']) : $tpl['buffer'];
$this->_out('/Length ' . strlen($buffer) . ' >>');
$this->_putstream($buffer);
$this->_out('endobj');
}
}
/**
* Output images.
*
* Overwritten to add {@link _putformxobjects()} after _putimages().
*/
public function _putimages()
{
parent::_putimages();
$this->_putformxobjects();
}
/**
* Writes the references of XObject resources to the document.
*
* Overwritten to add the the templates to the XObject resource dictionary.
*/
public function _putxobjectdict()
{
parent::_putxobjectdict();
foreach($this->_tpls as $tplIdx => $tpl) {
$this->_out(sprintf('%s%d %d 0 R', $this->tplPrefix, $tplIdx, $tpl['n']));
}
}
/**
* Writes bytes to the resulting document.
*
* Overwritten to delegate the data to the template buffer.
*
* @param string $s
*/
public function _out($s)
{
if ($this->state == 2 && $this->_inTpl) {
$this->_tpls[$this->tpl]['buffer'] .= $s . "\n";
} else {
parent::_out($s);
}
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
require_once('fpdf_tpl.php');
/**
* Class FPDI
*/
class FPDI extends FPDF_TPL
{
/**
* FPDI version
*
* @string
*/
const VERSION = '1.5.0';
/**
* Actual filename
*
* @var string
*/
public $currentFilename;
/**
* Parser-Objects
*
* @var fpdi_pdf_parser[]
*/
public $parsers;
/**
* Current parser
*
* @var fpdi_pdf_parser
*/
public $currentParser;
/**
* The name of the last imported page box
*
* @var string
*/
public $lastUsedPageBox;
/**
* Object stack
*
* @var array
*/
protected $_objStack;
/**
* Done object stack
*
* @var array
*/
protected $_doneObjStack;
/**
* Current Object Id.
*
* @var integer
*/
protected $_currentObjId;
/**
* Cache for imported pages/template ids
*
* @var array
*/
protected $_importedPages = array();
/**
* Set a source-file.
*
* Depending on the PDF version of the used document the PDF version of the resulting document will
* be adjusted to the higher version.
*
* @param string $filename A valid path to the PDF document from which pages should be imported from
* @return int The number of pages in the document
*/
public function setSourceFile($filename)
{
$_filename = realpath($filename);
if (false !== $_filename)
$filename = $_filename;
$this->currentFilename = $filename;
if (!isset($this->parsers[$filename])) {
$this->parsers[$filename] = $this->_getPdfParser($filename);
$this->setPdfVersion(
max($this->getPdfVersion(), $this->parsers[$filename]->getPdfVersion())
);
}
$this->currentParser =& $this->parsers[$filename];
return $this->parsers[$filename]->getPageCount();
}
/**
* Returns a PDF parser object
*
* @param string $filename
* @return fpdi_pdf_parser
*/
protected function _getPdfParser($filename)
{
require_once('fpdi_pdf_parser.php');
return new fpdi_pdf_parser($filename);
}
/**
* Get the current PDF version.
*
* @return string
*/
public function getPdfVersion()
{
return $this->PDFVersion;
}
/**
* Set the PDF version.
*
* @param string $version
*/
public function setPdfVersion($version = '1.3')
{
$this->PDFVersion = $version;
}
/**
* Import a page.
*
* The second parameter defines the bounding box that should be used to transform the page into a
* form XObject.
*
* Following values are available: MediaBox, CropBox, BleedBox, TrimBox, ArtBox.
* If a box is not especially defined its default box will be used:
*
* <ul>
* <li>CropBox: Default -> MediaBox</li>
* <li>BleedBox: Default -> CropBox</li>
* <li>TrimBox: Default -> CropBox</li>
* <li>ArtBox: Default -> CropBox</li>
* </ul>
*
* It is possible to get the used page box by the {@link getLastUsedPageBox()} method.
*
* @param int $pageNo The page number
* @param string $boxName The boundary box to use when transforming the page into a form XObject
* @param boolean $groupXObject Define the form XObject as a group XObject to support transparency (if used)
* @return int An id of the imported page/template to use with e.g. fpdf_tpl::useTemplate()
* @throws LogicException|InvalidArgumentException
* @see getLastUsedPageBox()
*/
public function importPage($pageNo, $boxName = 'CropBox', $groupXObject = true)
{
if ($this->_inTpl) {
throw new LogicException('Please import the desired pages before creating a new template.');
}
$fn = $this->currentFilename;
$boxName = '/' . ltrim($boxName, '/');
// check if page already imported
$pageKey = $fn . '-' . ((int)$pageNo) . $boxName;
if (isset($this->_importedPages[$pageKey])) {
return $this->_importedPages[$pageKey];
}
$parser = $this->parsers[$fn];
$parser->setPageNo($pageNo);
if (!in_array($boxName, $parser->availableBoxes)) {
throw new InvalidArgumentException(sprintf('Unknown box: %s', $boxName));
}
$pageBoxes = $parser->getPageBoxes($pageNo, $this->k);
/**
* MediaBox
* CropBox: Default -> MediaBox
* BleedBox: Default -> CropBox
* TrimBox: Default -> CropBox
* ArtBox: Default -> CropBox
*/
if (!isset($pageBoxes[$boxName]) && ($boxName == '/BleedBox' || $boxName == '/TrimBox' || $boxName == '/ArtBox'))
$boxName = '/CropBox';
if (!isset($pageBoxes[$boxName]) && $boxName == '/CropBox')
$boxName = '/MediaBox';
if (!isset($pageBoxes[$boxName]))
return false;
$this->lastUsedPageBox = $boxName;
$box = $pageBoxes[$boxName];
$this->tpl++;
$this->_tpls[$this->tpl] = array();
$tpl =& $this->_tpls[$this->tpl];
$tpl['parser'] = $parser;
$tpl['resources'] = $parser->getPageResources();
$tpl['buffer'] = $parser->getContent();
$tpl['box'] = $box;
$tpl['groupXObject'] = $groupXObject;
if ($groupXObject) {
$this->setPdfVersion(max($this->getPdfVersion(), 1.4));
}
// To build an array that can be used by PDF_TPL::useTemplate()
$this->_tpls[$this->tpl] = array_merge($this->_tpls[$this->tpl], $box);
// An imported page will start at 0,0 all the time. Translation will be set in _putformxobjects()
$tpl['x'] = 0;
$tpl['y'] = 0;
// handle rotated pages
$rotation = $parser->getPageRotation($pageNo);
$tpl['_rotationAngle'] = 0;
if (isset($rotation[1]) && ($angle = $rotation[1] % 360) != 0) {
$steps = $angle / 90;
$_w = $tpl['w'];
$_h = $tpl['h'];
$tpl['w'] = $steps % 2 == 0 ? $_w : $_h;
$tpl['h'] = $steps % 2 == 0 ? $_h : $_w;
if ($angle < 0)
$angle += 360;
$tpl['_rotationAngle'] = $angle * -1;
}
$this->_importedPages[$pageKey] = $this->tpl;
return $this->tpl;
}
/**
* Returns the last used page boundary box.
*
* @return string The used boundary box: MediaBox, CropBox, BleedBox, TrimBox or ArtBox
*/
public function getLastUsedPageBox()
{
return $this->lastUsedPageBox;
}
/**
* Use a template or imported page in current page or other template.
*
* You can use a template in a page or in another template.
* You can give the used template a new size. All parameters are optional.
* The width or height is calculated automatically if one is given. If no
* parameter is given the origin size as defined in beginTemplate() or of
* the imported page is used.
*
* The calculated or used width and height are returned as an array.
*
* @param int $tplIdx A valid template-id
* @param int $x The x-position
* @param int $y The y-position
* @param int $w The new width of the template
* @param int $h The new height of the template
* @param boolean $adjustPageSize If set to true the current page will be resized to fit the dimensions
* of the template
*
* @return array The height and width of the template (array('w' => ..., 'h' => ...))
* @throws LogicException|InvalidArgumentException
*/
public function useTemplate($tplIdx, $x = null, $y = null, $w = 0, $h = 0, $adjustPageSize = false)
{
if ($adjustPageSize == true && is_null($x) && is_null($y)) {
$size = $this->getTemplateSize($tplIdx, $w, $h);
$orientation = $size['w'] > $size['h'] ? 'L' : 'P';
$size = array($size['w'], $size['h']);
if (is_subclass_of($this, 'TCPDF')) {
$this->setPageFormat($size, $orientation);
} else {
$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;
$this->PageSizes[$this->page] = array($this->wPt, $this->hPt);
}
}
}
$this->_out('q 0 J 1 w 0 j 0 G 0 g'); // reset standard values
$size = parent::useTemplate($tplIdx, $x, $y, $w, $h);
$this->_out('Q');
return $size;
}
/**
* Copy all imported objects to the resulting document.
*/
protected function _putimportedobjects()
{
if (!is_array($this->parsers) || count($this->parsers) === 0) {
return;
}
foreach($this->parsers AS $filename => $p) {
$this->currentParser =& $p;
if (!isset($this->_objStack[$filename]) || !is_array($this->_objStack[$filename])) {
continue;
}
while(($n = key($this->_objStack[$filename])) !== null) {
$nObj = $this->currentParser->resolveObject($this->_objStack[$filename][$n][1]);
$this->_newobj($this->_objStack[$filename][$n][0]);
if ($nObj[0] == pdf_parser::TYPE_STREAM) {
$this->_writeValue($nObj);
} else {
$this->_writeValue($nObj[1]);
}
$this->_out("\nendobj");
$this->_objStack[$filename][$n] = null; // free memory
unset($this->_objStack[$filename][$n]);
reset($this->_objStack[$filename]);
}
}
}
/**
* Writes the form XObjects to the PDF document.
*/
protected function _putformxobjects()
{
$filter=($this->compress) ? '/Filter /FlateDecode ' : '';
reset($this->_tpls);
foreach($this->_tpls AS $tplIdx => $tpl) {
$this->_newobj();
$currentN = $this->n; // TCPDF/Protection: rem current "n"
$this->_tpls[$tplIdx]['n'] = $this->n;
$this->_out('<<' . $filter . '/Type /XObject');
$this->_out('/Subtype /Form');
$this->_out('/FormType 1');
$this->_out(sprintf('/BBox [%.2F %.2F %.2F %.2F]',
(isset($tpl['box']['llx']) ? $tpl['box']['llx'] : $tpl['x']) * $this->k,
(isset($tpl['box']['lly']) ? $tpl['box']['lly'] : -$tpl['y']) * $this->k,
(isset($tpl['box']['urx']) ? $tpl['box']['urx'] : $tpl['w'] + $tpl['x']) * $this->k,
(isset($tpl['box']['ury']) ? $tpl['box']['ury'] : $tpl['h'] - $tpl['y']) * $this->k
));
$c = 1;
$s = 0;
$tx = 0;
$ty = 0;
if (isset($tpl['box'])) {
$tx = -$tpl['box']['llx'];
$ty = -$tpl['box']['lly'];
if ($tpl['_rotationAngle'] <> 0) {
$angle = $tpl['_rotationAngle'] * M_PI/180;
$c = cos($angle);
$s = sin($angle);
switch($tpl['_rotationAngle']) {
case -90:
$tx = -$tpl['box']['lly'];
$ty = $tpl['box']['urx'];
break;
case -180:
$tx = $tpl['box']['urx'];
$ty = $tpl['box']['ury'];
break;
case -270:
$tx = $tpl['box']['ury'];
$ty = -$tpl['box']['llx'];
break;
}
}
} else if ($tpl['x'] != 0 || $tpl['y'] != 0) {
$tx = -$tpl['x'] * 2;
$ty = $tpl['y'] * 2;
}
$tx *= $this->k;
$ty *= $this->k;
if ($c != 1 || $s != 0 || $tx != 0 || $ty != 0) {
$this->_out(sprintf('/Matrix [%.5F %.5F %.5F %.5F %.5F %.5F]',
$c, $s, -$s, $c, $tx, $ty
));
}
$this->_out('/Resources ');
if (isset($tpl['resources'])) {
$this->currentParser = $tpl['parser'];
$this->_writeValue($tpl['resources']); // "n" will be changed
} else {
$this->_out('<</ProcSet [/PDF /Text /ImageB /ImageC /ImageI]');
if (isset($this->_res['tpl'][$tplIdx])) {
$res = $this->_res['tpl'][$tplIdx];
if (isset($res['fonts']) && count($res['fonts'])) {
$this->_out('/Font <<');
foreach ($res['fonts'] as $font)
$this->_out('/F' . $font['i'] . ' ' . $font['n'] . ' 0 R');
$this->_out('>>');
}
if (isset($res['images']) && count($res['images']) ||
isset($res['tpls']) && count($res['tpls']))
{
$this->_out('/XObject <<');
if (isset($res['images'])) {
foreach ($res['images'] as $image)
$this->_out('/I' . $image['i'] . ' ' . $image['n'] . ' 0 R');
}
if (isset($res['tpls'])) {
foreach ($res['tpls'] as $i => $_tpl)
$this->_out($this->tplPrefix . $i . ' ' . $_tpl['n'] . ' 0 R');
}
$this->_out('>>');
}
$this->_out('>>');
}
}
if (isset($tpl['groupXObject']) && $tpl['groupXObject']) {
$this->_out('/Group <</Type/Group/S/Transparency>>');
}
$newN = $this->n; // TCPDF: rem new "n"
$this->n = $currentN; // TCPDF: reset to current "n"
$buffer = ($this->compress) ? gzcompress($tpl['buffer']) : $tpl['buffer'];
if (is_subclass_of($this, 'TCPDF')) {
$buffer = $this->_getrawstream($buffer);
$this->_out('/Length ' . strlen($buffer) . ' >>');
$this->_out("stream\n" . $buffer . "\nendstream");
} else {
$this->_out('/Length ' . strlen($buffer) . ' >>');
$this->_putstream($buffer);
}
$this->_out('endobj');
$this->n = $newN; // TCPDF: reset to new "n"
}
$this->_putimportedobjects();
}
/**
* Creates and optionally write the object definition to the document.
*
* Rewritten to handle existing own defined objects
*
* @param bool $objId
* @param bool $onlyNewObj
* @return bool|int
*/
public function _newobj($objId = false, $onlyNewObj = false)
{
if (!$objId) {
$objId = ++$this->n;
}
//Begin a new object
if (!$onlyNewObj) {
$this->offsets[$objId] = is_subclass_of($this, 'TCPDF') ? $this->bufferlen : strlen($this->buffer);
$this->_out($objId . ' 0 obj');
$this->_currentObjId = $objId; // for later use with encryption
}
return $objId;
}
/**
* Writes a PDF value to the resulting document.
*
* Needed to rebuild the source document
*
* @param mixed $value A PDF-Value. Structure of values see cases in this method
*/
protected function _writeValue(&$value)
{
if (is_subclass_of($this, 'TCPDF')) {
parent::_prepareValue($value);
}
switch ($value[0]) {
case pdf_parser::TYPE_TOKEN:
$this->_straightOut($value[1] . ' ');
break;
case pdf_parser::TYPE_NUMERIC:
case pdf_parser::TYPE_REAL:
if (is_float($value[1]) && $value[1] != 0) {
$this->_straightOut(rtrim(rtrim(sprintf('%F', $value[1]), '0'), '.') . ' ');
} else {
$this->_straightOut($value[1] . ' ');
}
break;
case pdf_parser::TYPE_ARRAY:
// An array. Output the proper
// structure and move on.
$this->_straightOut('[');
for ($i = 0; $i < count($value[1]); $i++) {
$this->_writeValue($value[1][$i]);
}
$this->_out(']');
break;
case pdf_parser::TYPE_DICTIONARY:
// A dictionary.
$this->_straightOut('<<');
reset ($value[1]);
while (list($k, $v) = each($value[1])) {
$this->_straightOut($k . ' ');
$this->_writeValue($v);
}
$this->_straightOut('>>');
break;
case pdf_parser::TYPE_OBJREF:
// An indirect object reference
// Fill the object stack if needed
$cpfn =& $this->currentParser->filename;
if (!isset($this->_doneObjStack[$cpfn][$value[1]])) {
$this->_newobj(false, true);
$this->_objStack[$cpfn][$value[1]] = array($this->n, $value);
$this->_doneObjStack[$cpfn][$value[1]] = array($this->n, $value);
}
$objId = $this->_doneObjStack[$cpfn][$value[1]][0];
$this->_out($objId . ' 0 R');
break;
case pdf_parser::TYPE_STRING:
// A string.
$this->_straightOut('(' . $value[1] . ')');
break;
case pdf_parser::TYPE_STREAM:
// A stream. First, output the
// stream dictionary, then the
// stream data itself.
$this->_writeValue($value[1]);
$this->_out('stream');
$this->_out($value[2][1]);
$this->_straightOut("endstream");
break;
case pdf_parser::TYPE_HEX:
$this->_straightOut('<' . $value[1] . '>');
break;
case pdf_parser::TYPE_BOOLEAN:
$this->_straightOut($value[1] ? 'true ' : 'false ');
break;
case pdf_parser::TYPE_NULL:
// The null object.
$this->_straightOut('null ');
break;
}
}
/**
* Modified _out() method so not each call will add a newline to the output.
*/
protected function _straightOut($s)
{
if (!is_subclass_of($this, 'TCPDF')) {
if ($this->state == 2) {
$this->pages[$this->page] .= $s;
} else {
$this->buffer .= $s;
}
} else {
if ($this->state == 2) {
if ($this->inxobj) {
// we are inside an XObject template
$this->xobjects[$this->xobjid]['outdata'] .= $s;
} else if ((!$this->InFooter) AND isset($this->footerlen[$this->page]) AND ($this->footerlen[$this->page] > 0)) {
// puts data before page footer
$pagebuff = $this->getPageBuffer($this->page);
$page = substr($pagebuff, 0, -$this->footerlen[$this->page]);
$footer = substr($pagebuff, -$this->footerlen[$this->page]);
$this->setPageBuffer($this->page, $page . $s . $footer);
// update footer position
$this->footerpos[$this->page] += strlen($s);
} else {
// set page data
$this->setPageBuffer($this->page, $s, true);
}
} else if ($this->state > 0) {
// set general data
$this->setBuffer($s);
}
}
}
/**
* Ends the document
*
* Overwritten to close opened parsers
*/
public function _enddoc()
{
parent::_enddoc();
$this->_closeParsers();
}
/**
* Close all files opened by parsers.
*
* @return boolean
*/
protected function _closeParsers()
{
if ($this->state > 2) {
$this->cleanUp();
return true;
}
return false;
}
/**
* Removes cycled references and closes the file handles of the parser objects.
*/
public function cleanUp()
{
while (($parser = array_pop($this->parsers)) !== null) {
/**
* @var fpdi_pdf_parser $parser
*/
$parser->closeFile();
}
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* This file is used as a bridge between TCPDF or FPDF
* It will dynamically create the class extending the available
* class FPDF or TCPDF.
*
* This way it is possible to use FPDI for both FPDF and TCPDF with one FPDI version.
*/
if (!class_exists('TCPDF', false)) {
/**
* Class fpdi_bridge
*/
class fpdi_bridge extends FPDF
{
// empty body
}
} else {
/**
* Class fpdi_bridge
*/
class fpdi_bridge extends TCPDF
{
/**
* Array of Tpl-Data
*
* @var array
*/
protected $_tpls = array();
/**
* Name-prefix of Templates used in Resources-Dictionary
*
* @var string A String defining the Prefix used as Template-Object-Names. Have to begin with an /
*/
public $tplPrefix = "/TPL";
/**
* Current Object Id.
*
* @var integer
*/
protected $_currentObjId;
/**
* Return XObjects Dictionary.
*
* Overwritten to add additional XObjects to the resources dictionary of TCPDF
*
* @return string
*/
protected function _getxobjectdict()
{
$out = parent::_getxobjectdict();
foreach ($this->_tpls as $tplIdx => $tpl) {
$out .= sprintf('%s%d %d 0 R', $this->tplPrefix, $tplIdx, $tpl['n']);
}
return $out;
}
/**
* Writes a PDF value to the resulting document.
*
* Prepares the value for encryption of imported data by FPDI
*
* @param array $value
*/
protected function _prepareValue(&$value)
{
switch ($value[0]) {
case pdf_parser::TYPE_STRING:
if ($this->encrypted) {
$value[1] = $this->_unescape($value[1]);
$value[1] = $this->_encrypt_data($this->_currentObjId, $value[1]);
$value[1] = TCPDF_STATIC::_escape($value[1]);
}
break;
case pdf_parser::TYPE_STREAM:
if ($this->encrypted) {
$value[2][1] = $this->_encrypt_data($this->_currentObjId, $value[2][1]);
$value[1][1]['/Length'] = array(
pdf_parser::TYPE_NUMERIC,
strlen($value[2][1])
);
}
break;
case pdf_parser::TYPE_HEX:
if ($this->encrypted) {
$value[1] = $this->hex2str($value[1]);
$value[1] = $this->_encrypt_data($this->_currentObjId, $value[1]);
// remake hexstring of encrypted string
$value[1] = $this->str2hex($value[1]);
}
break;
}
}
/**
* Un-escapes a PDF string
*
* @param string $s
* @return string
*/
protected function _unescape($s)
{
$out = '';
for ($count = 0, $n = strlen($s); $count < $n; $count++) {
if ($s[$count] != '\\' || $count == $n-1) {
$out .= $s[$count];
} else {
switch ($s[++$count]) {
case ')':
case '(':
case '\\':
$out .= $s[$count];
break;
case 'f':
$out .= chr(0x0C);
break;
case 'b':
$out .= chr(0x08);
break;
case 't':
$out .= chr(0x09);
break;
case 'r':
$out .= chr(0x0D);
break;
case 'n':
$out .= chr(0x0A);
break;
case "\r":
if ($count != $n-1 && $s[$count+1] == "\n")
$count++;
break;
case "\n":
break;
default:
// Octal-Values
if (ord($s[$count]) >= ord('0') &&
ord($s[$count]) <= ord('9')) {
$oct = ''. $s[$count];
if (ord($s[$count+1]) >= ord('0') &&
ord($s[$count+1]) <= ord('9')) {
$oct .= $s[++$count];
if (ord($s[$count+1]) >= ord('0') &&
ord($s[$count+1]) <= ord('9')) {
$oct .= $s[++$count];
}
}
$out .= chr(octdec($oct));
} else {
$out .= $s[$count];
}
}
}
}
return $out;
}
/**
* Hexadecimal to string
*
* @param string $data
* @return string
*/
public function hex2str($data)
{
$data = preg_replace('/[^0-9A-Fa-f]/', '', rtrim($data, '>'));
if ((strlen($data) % 2) == 1) {
$data .= '0';
}
return pack('H*', $data);
}
/**
* String to hexadecimal
*
* @param string $str
* @return string
*/
public function str2hex($str)
{
return current(unpack('H*', $str));
}
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
require_once('pdf_parser.php');
/**
* Class fpdi_pdf_parser
*/
class fpdi_pdf_parser extends pdf_parser
{
/**
* Pages
*
* Index begins at 0
*
* @var array
*/
protected $_pages;
/**
* Page count
*
* @var integer
*/
protected $_pageCount;
/**
* Current page number
*
* @var integer
*/
public $pageNo;
/**
* PDF version of imported document
*
* @var string
*/
public $_pdfVersion;
/**
* Available BoxTypes
*
* @var array
*/
public $availableBoxes = array('/MediaBox', '/CropBox', '/BleedBox', '/TrimBox', '/ArtBox');
/**
* The constructor.
*
* @param string $filename The source filename
*/
public function __construct($filename)
{
parent::__construct($filename);
// resolve Pages-Dictonary
$pages = $this->resolveObject($this->_root[1][1]['/Pages']);
// Read pages
$this->_readPages($pages, $this->_pages);
// count pages;
$this->_pageCount = count($this->_pages);
}
/**
* Get page count from source file.
*
* @return int
*/
public function getPageCount()
{
return $this->_pageCount;
}
/**
* Set the page number.
*
* @param int $pageNo Page number to use
* @throws InvalidArgumentException
*/
public function setPageNo($pageNo)
{
$pageNo = ((int) $pageNo) - 1;
if ($pageNo < 0 || $pageNo >= $this->getPageCount()) {
throw new InvalidArgumentException('Invalid page number!');
}
$this->pageNo = $pageNo;
}
/**
* Get page-resources from current page
*
* @return array|boolean
*/
public function getPageResources()
{
return $this->_getPageResources($this->_pages[$this->pageNo]);
}
/**
* Get page-resources from a /Page dictionary.
*
* @param array $obj Array of pdf-data
* @return array|boolean
*/
protected function _getPageResources($obj)
{
$obj = $this->resolveObject($obj);
// If the current object has a resources
// dictionary associated with it, we use
// it. Otherwise, we move back to its
// parent object.
if (isset($obj[1][1]['/Resources'])) {
$res = $this->resolveObject($obj[1][1]['/Resources']);
if ($res[0] == pdf_parser::TYPE_OBJECT)
return $res[1];
return $res;
}
if (!isset($obj[1][1]['/Parent'])) {
return false;
}
$res = $this->_getPageResources($obj[1][1]['/Parent']);
if ($res[0] == pdf_parser::TYPE_OBJECT)
return $res[1];
return $res;
}
/**
* Get content of current page.
*
* If /Contents is an array, the streams are concatenated
*
* @return string
*/
public function getContent()
{
$buffer = '';
if (isset($this->_pages[$this->pageNo][1][1]['/Contents'])) {
$contents = $this->_getPageContent($this->_pages[$this->pageNo][1][1]['/Contents']);
foreach ($contents AS $tmpContent) {
$buffer .= $this->_unFilterStream($tmpContent) . ' ';
}
}
return $buffer;
}
/**
* Resolve all content objects.
*
* @param array $contentRef
* @return array
*/
protected function _getPageContent($contentRef)
{
$contents = array();
if ($contentRef[0] == pdf_parser::TYPE_OBJREF) {
$content = $this->resolveObject($contentRef);
if ($content[1][0] == pdf_parser::TYPE_ARRAY) {
$contents = $this->_getPageContent($content[1]);
} else {
$contents[] = $content;
}
} else if ($contentRef[0] == pdf_parser::TYPE_ARRAY) {
foreach ($contentRef[1] AS $tmp_content_ref) {
$contents = array_merge($contents, $this->_getPageContent($tmp_content_ref));
}
}
return $contents;
}
/**
* Get a boundary box from a page
*
* Array format is same as used by FPDF_TPL.
*
* @param array $page a /Page dictionary
* @param string $boxIndex Type of box {see {@link $availableBoxes})
* @param float Scale factor from user space units to points
*
* @return array|boolean
*/
protected function _getPageBox($page, $boxIndex, $k)
{
$page = $this->resolveObject($page);
$box = null;
if (isset($page[1][1][$boxIndex])) {
$box = $page[1][1][$boxIndex];
}
if (!is_null($box) && $box[0] == pdf_parser::TYPE_OBJREF) {
$tmp_box = $this->resolveObject($box);
$box = $tmp_box[1];
}
if (!is_null($box) && $box[0] == pdf_parser::TYPE_ARRAY) {
$b = $box[1];
return array(
'x' => $b[0][1] / $k,
'y' => $b[1][1] / $k,
'w' => abs($b[0][1] - $b[2][1]) / $k,
'h' => abs($b[1][1] - $b[3][1]) / $k,
'llx' => min($b[0][1], $b[2][1]) / $k,
'lly' => min($b[1][1], $b[3][1]) / $k,
'urx' => max($b[0][1], $b[2][1]) / $k,
'ury' => max($b[1][1], $b[3][1]) / $k,
);
} else if (!isset($page[1][1]['/Parent'])) {
return false;
} else {
return $this->_getPageBox($this->resolveObject($page[1][1]['/Parent']), $boxIndex, $k);
}
}
/**
* Get all page boundary boxes by page number
*
* @param int $pageNo The page number
* @param float $k Scale factor from user space units to points
* @return array
* @throws InvalidArgumentException
*/
public function getPageBoxes($pageNo, $k)
{
if (!isset($this->_pages[$pageNo - 1])) {
throw new InvalidArgumentException('Page ' . $pageNo . ' does not exists.');
}
return $this->_getPageBoxes($this->_pages[$pageNo - 1], $k);
}
/**
* Get all boxes from /Page dictionary
*
* @param array $page A /Page dictionary
* @param float $k Scale factor from user space units to points
* @return array
*/
protected function _getPageBoxes($page, $k)
{
$boxes = array();
foreach($this->availableBoxes AS $box) {
if ($_box = $this->_getPageBox($page, $box, $k)) {
$boxes[$box] = $_box;
}
}
return $boxes;
}
/**
* Get the page rotation by page number
*
* @param integer $pageNo
* @throws InvalidArgumentException
* @return array
*/
public function getPageRotation($pageNo)
{
if (!isset($this->_pages[$pageNo - 1])) {
throw new InvalidArgumentException('Page ' . $pageNo . ' does not exists.');
}
return $this->_getPageRotation($this->_pages[$pageNo - 1]);
}
/**
* Get the rotation value of a page
*
* @param array $obj A /Page dictionary
* @return array|bool
*/
protected function _getPageRotation($obj)
{
$obj = $this->resolveObject($obj);
if (isset($obj[1][1]['/Rotate'])) {
$res = $this->resolveObject($obj[1][1]['/Rotate']);
if ($res[0] == pdf_parser::TYPE_OBJECT)
return $res[1];
return $res;
}
if (!isset($obj[1][1]['/Parent'])) {
return false;
}
$res = $this->_getPageRotation($obj[1][1]['/Parent']);
if ($res[0] == pdf_parser::TYPE_OBJECT)
return $res[1];
return $res;
}
/**
* Read all pages
*
* @param array $pages /Pages dictionary
* @param array $result The result array
* @throws Exception
*/
protected function _readPages(&$pages, &$result)
{
// Get the kids dictionary
$_kids = $this->resolveObject($pages[1][1]['/Kids']);
if (!is_array($_kids)) {
throw new Exception('Cannot find /Kids in current /Page-Dictionary');
}
if ($_kids[0] === self::TYPE_OBJECT) {
$_kids = $_kids[1];
}
$kids = $_kids[1];
foreach ($kids as $v) {
$pg = $this->resolveObject($v);
if ($pg[1][1]['/Type'][1] === '/Pages') {
// If one of the kids is an embedded
// /Pages array, resolve it as well.
$this->_readPages($pg, $result);
} else {
$result[] = $pg;
}
}
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* Class pdf_context
*/
class pdf_context
{
/**
* Mode
*
* @var integer 0 = file | 1 = string
*/
protected $_mode = 0;
/**
* @var resource|string
*/
public $file;
/**
* @var string
*/
public $buffer;
/**
* @var integer
*/
public $offset;
/**
* @var integer
*/
public $length;
/**
* @var array
*/
public $stack;
/**
* The constructor
*
* @param resource $f
*/
public function __construct(&$f)
{
$this->file =& $f;
if (is_string($this->file))
$this->_mode = 1;
$this->reset();
}
/**
* Get the position in the file stream
*
* @return int
*/
public function getPos()
{
if ($this->_mode == 0) {
return ftell($this->file);
} else {
return 0;
}
}
/**
* Reset the position in the file stream.
*
* Optionally move the file pointer to a new location and reset the buffered data.
*
* @param null $pos
* @param int $l
*/
public function reset($pos = null, $l = 100)
{
if ($this->_mode == 0) {
if (!is_null($pos)) {
fseek ($this->file, $pos);
}
$this->buffer = $l > 0 ? fread($this->file, $l) : '';
$this->length = strlen($this->buffer);
if ($this->length < $l)
$this->increaseLength($l - $this->length);
} else {
$this->buffer = $this->file;
$this->length = strlen($this->buffer);
}
$this->offset = 0;
$this->stack = array();
}
/**
* Make sure that there is at least one character beyond the current offset in the buffer.
*
* To prevent the tokenizer from attempting to access data that does not exist.
*
* @return bool
*/
public function ensureContent()
{
if ($this->offset >= $this->length - 1) {
return $this->increaseLength();
} else {
return true;
}
}
/**
* Forcefully read more data into the buffer
*
* @param int $l
* @return bool
*/
public function increaseLength($l = 100)
{
if ($this->_mode == 0 && feof($this->file)) {
return false;
} else if ($this->_mode == 0) {
$totalLength = $this->length + $l;
do {
$toRead = $totalLength - $this->length;
if ($toRead < 1)
break;
$this->buffer .= fread($this->file, $toRead);
} while ((($this->length = strlen($this->buffer)) != $totalLength) && !feof($this->file));
return true;
} else {
return false;
}
}
}

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<?php
//
// FPDI - Version 1.5
//
// Copyright 2004-2014 Setasign - Jan Slabon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
/**
* Class pdf_parser
*/
class pdf_parser
{
/**
* Type constant
*
* @var integer
*/
const TYPE_NULL = 0;
/**
* Type constant
*
* @var integer
*/
const TYPE_NUMERIC = 1;
/**
* Type constant
*
* @var integer
*/
const TYPE_TOKEN = 2;
/**
* Type constant
*
* @var integer
*/
const TYPE_HEX = 3;
/**
* Type constant
*
* @var integer
*/
const TYPE_STRING = 4;
/**
* Type constant
*
* @var integer
*/
const TYPE_DICTIONARY = 5;
/**
* Type constant
*
* @var integer
*/
const TYPE_ARRAY = 6;
/**
* Type constant
*
* @var integer
*/
const TYPE_OBJDEC = 7;
/**
* Type constant
*
* @var integer
*/
const TYPE_OBJREF = 8;
/**
* Type constant
*
* @var integer
*/
const TYPE_OBJECT = 9;
/**
* Type constant
*
* @var integer
*/
const TYPE_STREAM = 10;
/**
* Type constant
*
* @var integer
*/
const TYPE_BOOLEAN = 11;
/**
* Type constant
*
* @var integer
*/
const TYPE_REAL = 12;
/**
* Define the amount of byte in which the initial keyword of a PDF document should be searched.
*
* @var int
*/
static public $searchForStartxrefLength = 5500;
/**
* Filename
*
* @var string
*/
public $filename;
/**
* File resource
*
* @var resource
*/
protected $_f;
/**
* PDF Context
*
* @var pdf_context
*/
protected $_c;
/**
* xref-Data
*
* @var array
*/
protected $_xref;
/**
* Data of the Root object
*
* @var array
*/
protected $_root;
/**
* PDF version of the loaded document
*
* @var string
*/
protected $_pdfVersion;
/**
* For reading encrypted documents and xref/object streams are in use
*
* @var boolean
*/
protected $_readPlain = true;
/**
* The current read object
*
* @var array
*/
protected $_currentObj;
/**
* Constructor
*
* @param string $filename Source filename
* @throws InvalidArgumentException
*/
public function __construct($filename)
{
$this->filename = $filename;
$this->_f = @fopen($this->filename, 'rb');
if (!$this->_f) {
throw new InvalidArgumentException(sprintf('Cannot open %s !', $filename));
}
$this->getPdfVersion();
require_once('pdf_context.php');
$this->_c = new pdf_context($this->_f);
// Read xref-Data
$this->_xref = array();
$this->_readXref($this->_xref, $this->_findXref());
// Check for Encryption
$this->getEncryption();
// Read root
$this->_readRoot();
}
/**
* Destructor
*/
public function __destruct()
{
$this->closeFile();
}
/**
* Close the opened file
*/
public function closeFile()
{
if (isset($this->_f) && is_resource($this->_f)) {
fclose($this->_f);
unset($this->_f);
}
}
/**
* Check Trailer for Encryption
*
* @throws Exception
*/
public function getEncryption()
{
if (isset($this->_xref['trailer'][1]['/Encrypt'])) {
throw new Exception('File is encrypted!');
}
}
/**
* Get PDF-Version
*
* @return string
*/
public function getPdfVersion()
{
if ($this->_pdfVersion === null) {
fseek($this->_f, 0);
preg_match('/\d\.\d/', fread($this->_f, 16), $m);
if (isset($m[0]))
$this->_pdfVersion = $m[0];
}
return $this->_pdfVersion;
}
/**
* Read the /Root dictionary
*/
protected function _readRoot()
{
if ($this->_xref['trailer'][1]['/Root'][0] != self::TYPE_OBJREF) {
throw new Exception('Wrong Type of Root-Element! Must be an indirect reference');
}
$this->_root = $this->resolveObject($this->_xref['trailer'][1]['/Root']);
}
/**
* Find the xref table
*
* @return integer
* @throws Exception
*/
protected function _findXref()
{
$toRead = self::$searchForStartxrefLength;
$stat = fseek($this->_f, -$toRead, SEEK_END);
if ($stat === -1) {
fseek($this->_f, 0);
}
$data = fread($this->_f, $toRead);
$keywordPos = strpos(strrev($data), strrev('startxref'));
if (false === $keywordPos) {
$keywordPos = strpos(strrev($data), strrev('startref'));
}
if (false === $keywordPos) {
throw new Exception('Unable to find "startxref" keyword.');
}
$pos = strlen($data) - $keywordPos;
$data = substr($data, $pos);
if (!preg_match('/\s*(\d+).*$/s', $data, $matches)) {
throw new Exception('Unable to find pointer to xref table.');
}
return (int) $matches[1];
}
/**
* Read the xref table
*
* @param array $result Array of xref table entries
* @param integer $offset of xref table
* @return boolean
* @throws Exception
*/
protected function _readXref(&$result, $offset)
{
$tempPos = $offset - min(20, $offset);
fseek($this->_f, $tempPos); // set some bytes backwards to fetch corrupted docs
$data = fread($this->_f, 100);
$xrefPos = strrpos($data, 'xref');
if ($xrefPos === false) {
$this->_c->reset($offset);
$xrefStreamObjDec = $this->_readValue($this->_c);
if (is_array($xrefStreamObjDec) && isset($xrefStreamObjDec[0]) && $xrefStreamObjDec[0] == self::TYPE_OBJDEC) {
throw new Exception(
sprintf(
'This document (%s) 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)',
$this->filename
)
);
} else {
throw new Exception('Unable to find xref table.');
}
}
if (!isset($result['xrefLocation'])) {
$result['xrefLocation'] = $tempPos + $xrefPos;
$result['maxObject'] = 0;
}
$cycles = -1;
$bytesPerCycle = 100;
fseek($this->_f, $tempPos = $tempPos + $xrefPos + 4); // set the handle directly after the "xref"-keyword
$data = fread($this->_f, $bytesPerCycle);
while (($trailerPos = strpos($data, 'trailer', max($bytesPerCycle * $cycles++, 0))) === false && !feof($this->_f)) {
$data .= fread($this->_f, $bytesPerCycle);
}
if ($trailerPos === false) {
throw new Exception('Trailer keyword not found after xref table');
}
$data = ltrim(substr($data, 0, $trailerPos));
// get Line-Ending
preg_match_all("/(\r\n|\n|\r)/", substr($data, 0, 100), $m); // check the first 100 bytes for line breaks
$differentLineEndings = count(array_unique($m[0]));
if ($differentLineEndings > 1) {
$lines = preg_split("/(\r\n|\n|\r)/", $data, -1, PREG_SPLIT_NO_EMPTY);
} else {
$lines = explode($m[0][0], $data);
}
$data = $differentLineEndings = $m = null;
unset($data, $differentLineEndings, $m);
$linesCount = count($lines);
$start = 1;
for ($i = 0; $i < $linesCount; $i++) {
$line = trim($lines[$i]);
if ($line) {
$pieces = explode(' ', $line);
$c = count($pieces);
switch($c) {
case 2:
$start = (int)$pieces[0];
$end = $start + (int)$pieces[1];
if ($end > $result['maxObject'])
$result['maxObject'] = $end;
break;
case 3:
if (!isset($result['xref'][$start]))
$result['xref'][$start] = array();
if (!array_key_exists($gen = (int) $pieces[1], $result['xref'][$start])) {
$result['xref'][$start][$gen] = $pieces[2] == 'n' ? (int) $pieces[0] : null;
}
$start++;
break;
default:
throw new Exception('Unexpected data in xref table');
}
}
}
$lines = $pieces = $line = $start = $end = $gen = null;
unset($lines, $pieces, $line, $start, $end, $gen);
$this->_c->reset($tempPos + $trailerPos + 7);
$trailer = $this->_readValue($this->_c);
if (!isset($result['trailer'])) {
$result['trailer'] = $trailer;
}
if (isset($trailer[1]['/Prev'])) {
$this->_readXref($result, $trailer[1]['/Prev'][1]);
}
$trailer = null;
unset($trailer);
return true;
}
/**
* Reads a PDF value
*
* @param pdf_context $c
* @param string $token A token
* @return mixed
*/
protected function _readValue(&$c, $token = null)
{
if (is_null($token)) {
$token = $this->_readToken($c);
}
if ($token === false) {
return false;
}
switch ($token) {
case '<':
// This is a hex string.
// Read the value, then the terminator
$pos = $c->offset;
while(1) {
$match = strpos ($c->buffer, '>', $pos);
// If you can't find it, try
// reading more data from the stream
if ($match === false) {
if (!$c->increaseLength()) {
return false;
} else {
continue;
}
}
$result = substr ($c->buffer, $c->offset, $match - $c->offset);
$c->offset = $match + 1;
return array (self::TYPE_HEX, $result);
}
break;
case '<<':
// This is a dictionary.
$result = array();
// Recurse into this function until we reach
// the end of the dictionary.
while (($key = $this->_readToken($c)) !== '>>') {
if ($key === false) {
return false;
}
if (($value = $this->_readValue($c)) === false) {
return false;
}
// Catch missing value
if ($value[0] == self::TYPE_TOKEN && $value[1] == '>>') {
$result[$key] = array(self::TYPE_NULL);
break;
}
$result[$key] = $value;
}
return array (self::TYPE_DICTIONARY, $result);
case '[':
// This is an array.
$result = array();
// Recurse into this function until we reach
// the end of the array.
while (($token = $this->_readToken($c)) !== ']') {
if ($token === false) {
return false;
}
if (($value = $this->_readValue($c, $token)) === false) {
return false;
}
$result[] = $value;
}
return array (self::TYPE_ARRAY, $result);
case '(':
// This is a string
$pos = $c->offset;
$openBrackets = 1;
do {
for (; $openBrackets != 0 && $pos < $c->length; $pos++) {
switch (ord($c->buffer[$pos])) {
case 0x28: // '('
$openBrackets++;
break;
case 0x29: // ')'
$openBrackets--;
break;
case 0x5C: // backslash
$pos++;
}
}
} while($openBrackets != 0 && $c->increaseLength());
$result = substr($c->buffer, $c->offset, $pos - $c->offset - 1);
$c->offset = $pos;
return array (self::TYPE_STRING, $result);
case 'stream':
$tempPos = $c->getPos() - strlen($c->buffer);
$tempOffset = $c->offset;
$c->reset($startPos = $tempPos + $tempOffset);
$e = 0; // ensure line breaks in front of the stream
if ($c->buffer[0] == chr(10) || $c->buffer[0] == chr(13))
$e++;
if ($c->buffer[1] == chr(10) && $c->buffer[0] != chr(10))
$e++;
if ($this->_currentObj[1][1]['/Length'][0] == self::TYPE_OBJREF) {
$tmpLength = $this->resolveObject($this->_currentObj[1][1]['/Length']);
$length = $tmpLength[1][1];
} else {
$length = $this->_currentObj[1][1]['/Length'][1];
}
if ($length > 0) {
$c->reset($startPos + $e, $length);
$v = $c->buffer;
} else {
$v = '';
}
$c->reset($startPos + $e + $length);
$endstream = $this->_readToken($c);
if ($endstream != 'endstream') {
$c->reset($startPos + $e + $length + 9); // 9 = strlen("endstream")
// We don't throw an error here because the next
// round trip will start at a new offset
}
return array(self::TYPE_STREAM, $v);
default :
if (is_numeric($token)) {
// A numeric token. Make sure that
// it is not part of something else.
if (($tok2 = $this->_readToken($c)) !== false) {
if (is_numeric($tok2)) {
// Two numeric tokens in a row.
// In this case, we're probably in
// front of either an object reference
// or an object specification.
// Determine the case and return the data
if (($tok3 = $this->_readToken($c)) !== false) {
switch ($tok3) {
case 'obj':
return array(self::TYPE_OBJDEC, (int)$token, (int)$tok2);
case 'R':
return array(self::TYPE_OBJREF, (int)$token, (int)$tok2);
}
// If we get to this point, that numeric value up
// there was just a numeric value. Push the extra
// tokens back into the stack and return the value.
array_push($c->stack, $tok3);
}
}
array_push($c->stack, $tok2);
}
if ($token === (string)((int)$token))
return array(self::TYPE_NUMERIC, (int)$token);
else
return array(self::TYPE_REAL, (float)$token);
} else if ($token == 'true' || $token == 'false') {
return array(self::TYPE_BOOLEAN, $token == 'true');
} else if ($token == 'null') {
return array(self::TYPE_NULL);
} else {
// Just a token. Return it.
return array(self::TYPE_TOKEN, $token);
}
}
}
/**
* Resolve an object
*
* @param array $objSpec The object-data
* @return array|boolean
* @throws Exception
*/
public function resolveObject($objSpec)
{
$c = $this->_c;
// Exit if we get invalid data
if (!is_array($objSpec)) {
return false;
}
if ($objSpec[0] == self::TYPE_OBJREF) {
// This is a reference, resolve it
if (isset($this->_xref['xref'][$objSpec[1]][$objSpec[2]])) {
// Save current file position
// This is needed if you want to resolve
// references while you're reading another object
// (e.g.: if you need to determine the length
// of a stream)
$oldPos = $c->getPos();
// Reposition the file pointer and
// load the object header.
$c->reset($this->_xref['xref'][$objSpec[1]][$objSpec[2]]);
$header = $this->_readValue($c);
if ($header[0] != self::TYPE_OBJDEC || $header[1] != $objSpec[1] || $header[2] != $objSpec[2]) {
$toSearchFor = $objSpec[1] . ' ' . $objSpec[2] . ' obj';
if (preg_match('/' . $toSearchFor . '/', $c->buffer)) {
$c->offset = strpos($c->buffer, $toSearchFor) + strlen($toSearchFor);
// reset stack
$c->stack = array();
} else {
throw new Exception(
sprintf("Unable to find object (%s, %s) at expected location.", $objSpec[1], $objSpec[2])
);
}
}
// If we're being asked to store all the information
// about the object, we add the object ID and generation
// number for later use
$result = array (
self::TYPE_OBJECT,
'obj' => $objSpec[1],
'gen' => $objSpec[2]
);
$this->_currentObj =& $result;
// Now simply read the object data until
// we encounter an end-of-object marker
while (true) {
$value = $this->_readValue($c);
if ($value === false || count($result) > 4) {
// in this case the parser couldn't find an "endobj" so we break here
break;
}
if ($value[0] == self::TYPE_TOKEN && $value[1] === 'endobj') {
break;
}
$result[] = $value;
}
$c->reset($oldPos);
if (isset($result[2][0]) && $result[2][0] == self::TYPE_STREAM) {
$result[0] = self::TYPE_STREAM;
}
return $result;
}
} else {
return $objSpec;
}
}
/**
* Reads a token from the context
*
* @param pdf_context $c
* @return mixed
*/
protected function _readToken($c)
{
// If there is a token available
// on the stack, pop it out and
// return it.
if (count($c->stack)) {
return array_pop($c->stack);
}
// Strip away any whitespace
do {
if (!$c->ensureContent()) {
return false;
}
$c->offset += strspn($c->buffer, "\x20\x0A\x0C\x0D\x09\x00", $c->offset);
} while ($c->offset >= $c->length - 1);
// Get the first character in the stream
$char = $c->buffer[$c->offset++];
switch ($char) {
case '[':
case ']':
case '(':
case ')':
// This is either an array or literal string
// delimiter, Return it
return $char;
case '<':
case '>':
// This could either be a hex string or
// dictionary delimiter. Determine the
// appropriate case and return the token
if ($c->buffer[$c->offset] == $char) {
if (!$c->ensureContent()) {
return false;
}
$c->offset++;
return $char . $char;
} else {
return $char;
}
case '%':
// This is a comment - jump over it!
$pos = $c->offset;
while(1) {
$match = preg_match("/(\r\n|\r|\n)/", $c->buffer, $m, PREG_OFFSET_CAPTURE, $pos);
if ($match === 0) {
if (!$c->increaseLength()) {
return false;
} else {
continue;
}
}
$c->offset = $m[0][1] + strlen($m[0][0]);
return $this->_readToken($c);
}
default:
// This is "another" type of token (probably
// a dictionary entry or a numeric value)
// Find the end and return it.
if (!$c->ensureContent()) {
return false;
}
while(1) {
// Determine the length of the token
$pos = strcspn($c->buffer, "\x20%[]<>()/\x0A\x0C\x0D\x09\x00", $c->offset);
if ($c->offset + $pos <= $c->length - 1) {
break;
} else {
// If the script reaches this point,
// the token may span beyond the end
// of the current buffer. Therefore,
// we increase the size of the buffer
// and try again--just to be safe.
$c->increaseLength();
}
}
$result = substr($c->buffer, $c->offset - 1, $pos + 1);
$c->offset += $pos;
return $result;
}
}
/**
* Un-filter a stream object
*
* @param array $obj
* @return string
* @throws Exception
*/
protected function _unFilterStream($obj)
{
$filters = array();
if (isset($obj[1][1]['/Filter'])) {
$filter = $obj[1][1]['/Filter'];
if ($filter[0] == pdf_parser::TYPE_OBJREF) {
$tmpFilter = $this->resolveObject($filter);
$filter = $tmpFilter[1];
}
if ($filter[0] == pdf_parser::TYPE_TOKEN) {
$filters[] = $filter;
} else if ($filter[0] == pdf_parser::TYPE_ARRAY) {
$filters = $filter[1];
}
}
$stream = $obj[2][1];
foreach ($filters AS $filter) {
switch ($filter[1]) {
case '/FlateDecode':
case '/Fl':
if (function_exists('gzuncompress')) {
$oStream = $stream;
$stream = (strlen($stream) > 0) ? @gzuncompress($stream) : '';
} else {
throw new Exception(
sprintf('To handle %s filter, please compile php with zlib support.', $filter[1])
);
}
if ($stream === false) {
$tries = 0;
while ($tries < 8 && ($stream === false || strlen($stream) < strlen($oStream))) {
$oStream = substr($oStream, 1);
$stream = @gzinflate($oStream);
$tries++;
}
if ($stream === false) {
throw new Exception('Error while decompressing stream.');
}
}
break;
case '/LZWDecode':
require_once('filters/FilterLZW.php');
$decoder = new FilterLZW();
$stream = $decoder->decode($stream);
break;
case '/ASCII85Decode':
require_once('filters/FilterASCII85.php');
$decoder = new FilterASCII85();
$stream = $decoder->decode($stream);
break;
case '/ASCIIHexDecode':
require_once('filters/FilterASCIIHexDecode.php');
$decoder = new FilterASCIIHexDecode();
$stream = $decoder->decode($stream);
break;
case null:
break;
default:
throw new Exception(sprintf('Unsupported Filter: %s', $filter[1]));
}
}
return $stream;
}
}