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icingaweb2/library/vendor/dompdf/include/cpdf_adapter.cls.php
Eric Lippmann d87acd557a Add dompdf version 0.6.1 to our vendor library 
refs #6165
refs #6166
2014-11-13 20:09:27 +01:00

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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @author Orion Richardson <orionr@yahoo.com>
* @author Helmut Tischer <htischer@weihenstephan.org>
* @author Fabien Ménager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
// FIXME: Need to sanity check inputs to this class
require_once(DOMPDF_LIB_DIR . "/class.pdf.php");
/**
* PDF rendering interface
*
* CPDF_Adapter provides a simple stateless interface to the stateful one
* provided by the Cpdf class.
*
* Unless otherwise mentioned, all dimensions are in points (1/72 in). The
* coordinate origin is in the top left corner, and y values increase
* downwards.
*
* See {@link http://www.ros.co.nz/pdf/} for more complete documentation
* on the underlying {@link Cpdf} class.
*
* @package dompdf
*/
class CPDF_Adapter implements Canvas {
/**
* Dimensions of paper sizes in points
*
* @var array;
*/
static $PAPER_SIZES = array(
"4a0" => array(0,0,4767.87,6740.79),
"2a0" => array(0,0,3370.39,4767.87),
"a0" => array(0,0,2383.94,3370.39),
"a1" => array(0,0,1683.78,2383.94),
"a2" => array(0,0,1190.55,1683.78),
"a3" => array(0,0,841.89,1190.55),
"a4" => array(0,0,595.28,841.89),
"a5" => array(0,0,419.53,595.28),
"a6" => array(0,0,297.64,419.53),
"a7" => array(0,0,209.76,297.64),
"a8" => array(0,0,147.40,209.76),
"a9" => array(0,0,104.88,147.40),
"a10" => array(0,0,73.70,104.88),
"b0" => array(0,0,2834.65,4008.19),
"b1" => array(0,0,2004.09,2834.65),
"b2" => array(0,0,1417.32,2004.09),
"b3" => array(0,0,1000.63,1417.32),
"b4" => array(0,0,708.66,1000.63),
"b5" => array(0,0,498.90,708.66),
"b6" => array(0,0,354.33,498.90),
"b7" => array(0,0,249.45,354.33),
"b8" => array(0,0,175.75,249.45),
"b9" => array(0,0,124.72,175.75),
"b10" => array(0,0,87.87,124.72),
"c0" => array(0,0,2599.37,3676.54),
"c1" => array(0,0,1836.85,2599.37),
"c2" => array(0,0,1298.27,1836.85),
"c3" => array(0,0,918.43,1298.27),
"c4" => array(0,0,649.13,918.43),
"c5" => array(0,0,459.21,649.13),
"c6" => array(0,0,323.15,459.21),
"c7" => array(0,0,229.61,323.15),
"c8" => array(0,0,161.57,229.61),
"c9" => array(0,0,113.39,161.57),
"c10" => array(0,0,79.37,113.39),
"ra0" => array(0,0,2437.80,3458.27),
"ra1" => array(0,0,1729.13,2437.80),
"ra2" => array(0,0,1218.90,1729.13),
"ra3" => array(0,0,864.57,1218.90),
"ra4" => array(0,0,609.45,864.57),
"sra0" => array(0,0,2551.18,3628.35),
"sra1" => array(0,0,1814.17,2551.18),
"sra2" => array(0,0,1275.59,1814.17),
"sra3" => array(0,0,907.09,1275.59),
"sra4" => array(0,0,637.80,907.09),
"letter" => array(0,0,612.00,792.00),
"legal" => array(0,0,612.00,1008.00),
"ledger" => array(0,0,1224.00, 792.00),
"tabloid" => array(0,0,792.00, 1224.00),
"executive" => array(0,0,521.86,756.00),
"folio" => array(0,0,612.00,936.00),
"commercial #10 envelope" => array(0,0,684,297),
"catalog #10 1/2 envelope" => array(0,0,648,864),
"8.5x11" => array(0,0,612.00,792.00),
"8.5x14" => array(0,0,612.00,1008.0),
"11x17" => array(0,0,792.00, 1224.00),
);
/**
* The DOMPDF object
*
* @var DOMPDF
*/
private $_dompdf;
/**
* Instance of Cpdf class
*
* @var Cpdf
*/
private $_pdf;
/**
* PDF width, in points
*
* @var float
*/
private $_width;
/**
* PDF height, in points
*
* @var float;
*/
private $_height;
/**
* Current page number
*
* @var int
*/
private $_page_number;
/**
* Total number of pages
*
* @var int
*/
private $_page_count;
/**
* Text to display on every page
*
* @var array
*/
private $_page_text;
/**
* Array of pages for accesing after rendering is initially complete
*
* @var array
*/
private $_pages;
/**
* Array of temporary cached images to be deleted when processing is complete
*
* @var array
*/
private $_image_cache;
/**
* Class constructor
*
* @param mixed $paper The size of paper to use in this PDF ({@link CPDF_Adapter::$PAPER_SIZES})
* @param string $orientation The orientation of the document (either 'landscape' or 'portrait')
* @param DOMPDF $dompdf The DOMPDF instance
*/
function __construct($paper = "letter", $orientation = "portrait", DOMPDF $dompdf) {
if ( is_array($paper) ) {
$size = $paper;
}
else if ( isset(self::$PAPER_SIZES[mb_strtolower($paper)]) ) {
$size = self::$PAPER_SIZES[mb_strtolower($paper)];
}
else {
$size = self::$PAPER_SIZES["letter"];
}
if ( mb_strtolower($orientation) === "landscape" ) {
list($size[2], $size[3]) = array($size[3], $size[2]);
}
$this->_dompdf = $dompdf;
$this->_pdf = new Cpdf(
$size,
$dompdf->get_option("enable_unicode"),
$dompdf->get_option("font_cache"),
$dompdf->get_option("temp_dir")
);
$this->_pdf->addInfo("Creator", "DOMPDF");
$time = substr_replace(date('YmdHisO'), '\'', -2, 0).'\'';
$this->_pdf->addInfo("CreationDate", "D:$time");
$this->_pdf->addInfo("ModDate", "D:$time");
$this->_width = $size[2] - $size[0];
$this->_height= $size[3] - $size[1];
$this->_page_number = $this->_page_count = 1;
$this->_page_text = array();
$this->_pages = array($this->_pdf->getFirstPageId());
$this->_image_cache = array();
}
function get_dompdf(){
return $this->_dompdf;
}
/**
* Class destructor
*
* Deletes all temporary image files
*/
function __destruct() {
foreach ($this->_image_cache as $img) {
// The file might be already deleted by 3rd party tmp cleaner,
// the file might not have been created at all
// (if image outputting commands failed)
// or because the destructor was called twice accidentally.
if (!file_exists($img)) {
continue;
}
if (DEBUGPNG) print '[__destruct unlink '.$img.']';
if (!DEBUGKEEPTEMP) unlink($img);
}
}
/**
* Returns the Cpdf instance
*
* @return Cpdf
*/
function get_cpdf() {
return $this->_pdf;
}
/**
* Add meta information to the PDF
*
* @param string $label label of the value (Creator, Producer, etc.)
* @param string $value the text to set
*/
function add_info($label, $value) {
$this->_pdf->addInfo($label, $value);
}
/**
* Opens a new 'object'
*
* While an object is open, all drawing actions are recored in the object,
* as opposed to being drawn on the current page. Objects can be added
* later to a specific page or to several pages.
*
* The return value is an integer ID for the new object.
*
* @see CPDF_Adapter::close_object()
* @see CPDF_Adapter::add_object()
*
* @return int
*/
function open_object() {
$ret = $this->_pdf->openObject();
$this->_pdf->saveState();
return $ret;
}
/**
* Reopens an existing 'object'
*
* @see CPDF_Adapter::open_object()
* @param int $object the ID of a previously opened object
*/
function reopen_object($object) {
$this->_pdf->reopenObject($object);
$this->_pdf->saveState();
}
/**
* Closes the current 'object'
*
* @see CPDF_Adapter::open_object()
*/
function close_object() {
$this->_pdf->restoreState();
$this->_pdf->closeObject();
}
/**
* Adds a specified 'object' to the document
*
* $object int specifying an object created with {@link
* CPDF_Adapter::open_object()}. $where can be one of:
* - 'add' add to current page only
* - 'all' add to every page from the current one onwards
* - 'odd' add to all odd numbered pages from now on
* - 'even' add to all even numbered pages from now on
* - 'next' add the object to the next page only
* - 'nextodd' add to all odd numbered pages from the next one
* - 'nexteven' add to all even numbered pages from the next one
*
* @see Cpdf::addObject()
*
* @param int $object
* @param string $where
*/
function add_object($object, $where = 'all') {
$this->_pdf->addObject($object, $where);
}
/**
* Stops the specified 'object' from appearing in the document.
*
* The object will stop being displayed on the page following the current
* one.
*
* @param int $object
*/
function stop_object($object) {
$this->_pdf->stopObject($object);
}
/**
* @access private
*/
function serialize_object($id) {
// Serialize the pdf object's current state for retrieval later
return $this->_pdf->serializeObject($id);
}
/**
* @access private
*/
function reopen_serialized_object($obj) {
return $this->_pdf->restoreSerializedObject($obj);
}
//........................................................................
/**
* Returns the PDF's width in points
* @return float
*/
function get_width() { return $this->_width; }
/**
* Returns the PDF's height in points
* @return float
*/
function get_height() { return $this->_height; }
/**
* Returns the current page number
* @return int
*/
function get_page_number() { return $this->_page_number; }
/**
* Returns the total number of pages in the document
* @return int
*/
function get_page_count() { return $this->_page_count; }
/**
* Sets the current page number
*
* @param int $num
*/
function set_page_number($num) { $this->_page_number = $num; }
/**
* Sets the page count
*
* @param int $count
*/
function set_page_count($count) { $this->_page_count = $count; }
/**
* Sets the stroke color
*
* See {@link Style::set_color()} for the format of the color array.
* @param array $color
*/
protected function _set_stroke_color($color) {
$this->_pdf->setStrokeColor($color);
}
/**
* Sets the fill colour
*
* See {@link Style::set_color()} for the format of the colour array.
* @param array $color
*/
protected function _set_fill_color($color) {
$this->_pdf->setColor($color);
}
/**
* Sets line transparency
* @see Cpdf::setLineTransparency()
*
* Valid blend modes are (case-sensitive):
*
* Normal, Multiply, Screen, Overlay, Darken, Lighten,
* ColorDodge, ColorBurn, HardLight, SoftLight, Difference,
* Exclusion
*
* @param string $mode the blending mode to use
* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
*/
protected function _set_line_transparency($mode, $opacity) {
$this->_pdf->setLineTransparency($mode, $opacity);
}
/**
* Sets fill transparency
* @see Cpdf::setFillTransparency()
*
* Valid blend modes are (case-sensitive):
*
* Normal, Multiply, Screen, Overlay, Darken, Lighten,
* ColorDogde, ColorBurn, HardLight, SoftLight, Difference,
* Exclusion
*
* @param string $mode the blending mode to use
* @param float $opacity 0.0 fully transparent, 1.0 fully opaque
*/
protected function _set_fill_transparency($mode, $opacity) {
$this->_pdf->setFillTransparency($mode, $opacity);
}
/**
* Sets the line style
*
* @see Cpdf::setLineStyle()
*
* @param float $width
* @param string $cap
* @param string $join
* @param array $dash
*/
protected function _set_line_style($width, $cap, $join, $dash) {
$this->_pdf->setLineStyle($width, $cap, $join, $dash);
}
/**
* Sets the opacity
*
* @param $opacity
* @param $mode
*/
function set_opacity($opacity, $mode = "Normal") {
$this->_set_line_transparency($mode, $opacity);
$this->_set_fill_transparency($mode, $opacity);
}
function set_default_view($view, $options = array()) {
array_unshift($options, $view);
call_user_func_array(array($this->_pdf, "openHere"), $options);
}
/**
* Remaps y coords from 4th to 1st quadrant
*
* @param float $y
* @return float
*/
protected function y($y) {
return $this->_height - $y;
}
// Canvas implementation
function line($x1, $y1, $x2, $y2, $color, $width, $style = array()) {
$this->_set_stroke_color($color);
$this->_set_line_style($width, "butt", "", $style);
$this->_pdf->line($x1, $this->y($y1),
$x2, $this->y($y2));
}
function arc($x, $y, $r1, $r2, $astart, $aend, $color, $width, $style = array()) {
$this->_set_stroke_color($color);
$this->_set_line_style($width, "butt", "", $style);
$this->_pdf->ellipse($x, $this->y($y), $r1, $r2, 0, 8, $astart, $aend, false, false, true, false);
}
//........................................................................
/**
* Convert a GIF or BMP image to a PNG image
*
* @param string $image_url
* @param integer $type
*
* @throws DOMPDF_Exception
* @return string The url of the newly converted image
*/
protected function _convert_gif_bmp_to_png($image_url, $type) {
$image_type = Image_Cache::type_to_ext($type);
$func_name = "imagecreatefrom$image_type";
if ( !function_exists($func_name) ) {
throw new DOMPDF_Exception("Function $func_name() not found. Cannot convert $image_type image: $image_url. Please install the image PHP extension.");
}
set_error_handler("record_warnings");
$im = $func_name($image_url);
if ( $im ) {
imageinterlace($im, false);
$tmp_dir = $this->_dompdf->get_option("temp_dir");
$tmp_name = tempnam($tmp_dir, "{$image_type}dompdf_img_");
@unlink($tmp_name);
$filename = "$tmp_name.png";
$this->_image_cache[] = $filename;
imagepng($im, $filename);
imagedestroy($im);
}
else {
$filename = Image_Cache::$broken_image;
}
restore_error_handler();
return $filename;
}
function rectangle($x1, $y1, $w, $h, $color, $width, $style = array()) {
$this->_set_stroke_color($color);
$this->_set_line_style($width, "butt", "", $style);
$this->_pdf->rectangle($x1, $this->y($y1) - $h, $w, $h);
}
function filled_rectangle($x1, $y1, $w, $h, $color) {
$this->_set_fill_color($color);
$this->_pdf->filledRectangle($x1, $this->y($y1) - $h, $w, $h);
}
function clipping_rectangle($x1, $y1, $w, $h) {
$this->_pdf->clippingRectangle($x1, $this->y($y1) - $h, $w, $h);
}
function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL) {
$this->_pdf->clippingRectangleRounded($x1, $this->y($y1) - $h, $w, $h, $rTL, $rTR, $rBR, $rBL);
}
function clipping_end() {
$this->_pdf->clippingEnd();
}
function save() {
$this->_pdf->saveState();
}
function restore() {
$this->_pdf->restoreState();
}
function rotate($angle, $x, $y) {
$this->_pdf->rotate($angle, $x, $y);
}
function skew($angle_x, $angle_y, $x, $y) {
$this->_pdf->skew($angle_x, $angle_y, $x, $y);
}
function scale($s_x, $s_y, $x, $y) {
$this->_pdf->scale($s_x, $s_y, $x, $y);
}
function translate($t_x, $t_y) {
$this->_pdf->translate($t_x, $t_y);
}
function transform($a, $b, $c, $d, $e, $f) {
$this->_pdf->transform(array($a, $b, $c, $d, $e, $f));
}
function polygon($points, $color, $width = null, $style = array(), $fill = false) {
$this->_set_fill_color($color);
$this->_set_stroke_color($color);
// Adjust y values
for ( $i = 1; $i < count($points); $i += 2) {
$points[$i] = $this->y($points[$i]);
}
$this->_pdf->polygon($points, count($points) / 2, $fill);
}
function circle($x, $y, $r1, $color, $width = null, $style = null, $fill = false) {
$this->_set_fill_color($color);
$this->_set_stroke_color($color);
if ( !$fill && isset($width) ) {
$this->_set_line_style($width, "round", "round", $style);
}
$this->_pdf->ellipse($x, $this->y($y), $r1, 0, 0, 8, 0, 360, 1, $fill);
}
function image($img, $x, $y, $w, $h, $resolution = "normal") {
list($width, $height, $type) = dompdf_getimagesize($img);
$debug_png = $this->_dompdf->get_option("debug_png");
if ($debug_png) print "[image:$img|$width|$height|$type]";
switch ($type) {
case IMAGETYPE_JPEG:
if ($debug_png) print '!!!jpg!!!';
$this->_pdf->addJpegFromFile($img, $x, $this->y($y) - $h, $w, $h);
break;
case IMAGETYPE_GIF:
case IMAGETYPE_BMP:
if ($debug_png) print '!!!bmp or gif!!!';
// @todo use cache for BMP and GIF
$img = $this->_convert_gif_bmp_to_png($img, $type);
case IMAGETYPE_PNG:
if ($debug_png) print '!!!png!!!';
$this->_pdf->addPngFromFile($img, $x, $this->y($y) - $h, $w, $h);
break;
default:
if ($debug_png) print '!!!unknown!!!';
}
}
function text($x, $y, $text, $font, $size, $color = array(0,0,0), $word_space = 0.0, $char_space = 0.0, $angle = 0.0) {
$pdf = $this->_pdf;
$pdf->setColor($color);
$font .= ".afm";
$pdf->selectFont($font);
//Font_Metrics::get_font_height($font, $size) ==
//$this->get_font_height($font, $size) ==
//$this->_pdf->selectFont($font),$this->_pdf->getFontHeight($size)
//- FontBBoxheight+FontHeightOffset, scaled to $size, in pt
//$this->_pdf->getFontDescender($size)
//- Descender scaled to size
//
//$this->_pdf->fonts[$this->_pdf->currentFont] sizes:
//['FontBBox'][0] left, ['FontBBox'][1] bottom, ['FontBBox'][2] right, ['FontBBox'][3] top
//Maximum extent of all glyphs of the font from the baseline point
//['Ascender'] maximum height above baseline except accents
//['Descender'] maximum depth below baseline, negative number means below baseline
//['FontHeightOffset'] manual enhancement of .afm files to trim windows fonts. currently not used.
//Values are in 1/1000 pt for a font size of 1 pt
//
//['FontBBox'][1] should be close to ['Descender']
//['FontBBox'][3] should be close to ['Ascender']+Accents
//in practice, FontBBox values are a little bigger
//
//The text position is referenced to the baseline, not to the lower corner of the FontBBox,
//for what the left,top corner is given.
//FontBBox spans also the background box for the text.
//If the lower corner would be used as reference point, the Descents of the glyphs would
//hang over the background box border.
//Therefore compensate only the extent above the Baseline.
//
//print '<pre>['.$font.','.$size.','.$pdf->getFontHeight($size).','.$pdf->getFontDescender($size).','.$pdf->fonts[$pdf->currentFont]['FontBBox'][3].','.$pdf->fonts[$pdf->currentFont]['FontBBox'][1].','.$pdf->fonts[$pdf->currentFont]['FontHeightOffset'].','.$pdf->fonts[$pdf->currentFont]['Ascender'].','.$pdf->fonts[$pdf->currentFont]['Descender'].']</pre>';
//
//$pdf->addText($x, $this->y($y) - ($pdf->fonts[$pdf->currentFont]['FontBBox'][3]*$size)/1000, $size, $text, $angle, $word_space, $char_space);
$pdf->addText($x, $this->y($y) - $pdf->getFontHeight($size), $size, $text, $angle, $word_space, $char_space);
}
//........................................................................
function javascript($code) {
$this->_pdf->addJavascript($code);
}
//........................................................................
/**
* Add a named destination (similar to <a name="foo">...</a> in html)
*
* @param string $anchorname The name of the named destination
*/
function add_named_dest($anchorname) {
$this->_pdf->addDestination($anchorname, "Fit");
}
//........................................................................
/**
* Add a link to the pdf
*
* @param string $url The url to link to
* @param float $x The x position of the link
* @param float $y The y position of the link
* @param float $width The width of the link
* @param float $height The height of the link
*/
function add_link($url, $x, $y, $width, $height) {
$y = $this->y($y) - $height;
if ( strpos($url, '#') === 0 ) {
// Local link
$name = substr($url,1);
if ( $name ) {
$this->_pdf->addInternalLink($name, $x, $y, $x + $width, $y + $height);
}
}
else {
$this->_pdf->addLink(rawurldecode($url), $x, $y, $x + $width, $y + $height);
}
}
function get_text_width($text, $font, $size, $word_spacing = 0, $char_spacing = 0) {
$this->_pdf->selectFont($font);
$unicode = $this->_dompdf->get_option("enable_unicode");
if (!$unicode) {
$text = mb_convert_encoding($text, 'Windows-1252', 'UTF-8');
}
return $this->_pdf->getTextWidth($size, $text, $word_spacing, $char_spacing);
}
function register_string_subset($font, $string) {
$this->_pdf->registerText($font, $string);
}
function get_font_height($font, $size) {
$this->_pdf->selectFont($font);
$ratio = $this->_dompdf->get_option("font_height_ratio");
return $this->_pdf->getFontHeight($size) * $ratio;
}
/*function get_font_x_height($font, $size) {
$this->_pdf->selectFont($font);
$ratio = $this->_dompdf->get_option("font_height_ratio");
return $this->_pdf->getFontXHeight($size) * $ratio;
}*/
function get_font_baseline($font, $size) {
$ratio = $this->_dompdf->get_option("font_height_ratio");
return $this->get_font_height($font, $size) / $ratio;
}
/**
* Writes text at the specified x and y coordinates on every page
*
* The strings '{PAGE_NUM}' and '{PAGE_COUNT}' are automatically replaced
* with their current values.
*
* See {@link Style::munge_color()} for the format of the colour array.
*
* @param float $x
* @param float $y
* @param string $text the text to write
* @param string $font the font file to use
* @param float $size the font size, in points
* @param array $color
* @param float $word_space word spacing adjustment
* @param float $char_space char spacing adjustment
* @param float $angle angle to write the text at, measured CW starting from the x-axis
*/
function page_text($x, $y, $text, $font, $size, $color = array(0,0,0), $word_space = 0.0, $char_space = 0.0, $angle = 0.0) {
$_t = "text";
$this->_page_text[] = compact("_t", "x", "y", "text", "font", "size", "color", "word_space", "char_space", "angle");
}
/**
* Processes a script on every page
*
* The variables $pdf, $PAGE_NUM, and $PAGE_COUNT are available.
*
* This function can be used to add page numbers to all pages
* after the first one, for example.
*
* @param string $code the script code
* @param string $type the language type for script
*/
function page_script($code, $type = "text/php") {
$_t = "script";
$this->_page_text[] = compact("_t", "code", "type");
}
function new_page() {
$this->_page_number++;
$this->_page_count++;
$ret = $this->_pdf->newPage();
$this->_pages[] = $ret;
return $ret;
}
/**
* Add text to each page after rendering is complete
*/
protected function _add_page_text() {
if ( !count($this->_page_text) ) {
return;
}
$page_number = 1;
$eval = null;
foreach ($this->_pages as $pid) {
$this->reopen_object($pid);
foreach ($this->_page_text as $pt) {
extract($pt);
switch ($_t) {
case "text":
$text = str_replace(array("{PAGE_NUM}","{PAGE_COUNT}"),
array($page_number, $this->_page_count), $text);
$this->text($x, $y, $text, $font, $size, $color, $word_space, $char_space, $angle);
break;
case "script":
if ( !$eval ) {
$eval = new PHP_Evaluator($this);
}
$eval->evaluate($code, array('PAGE_NUM' => $page_number, 'PAGE_COUNT' => $this->_page_count));
break;
}
}
$this->close_object();
$page_number++;
}
}
/**
* Streams the PDF directly to the browser
*
* @param string $filename the name of the PDF file
* @param array $options associative array, 'Attachment' => 0 or 1, 'compress' => 1 or 0
*/
function stream($filename, $options = null) {
// Add page text
$this->_add_page_text();
$options["Content-Disposition"] = $filename;
$this->_pdf->stream($options);
}
/**
* Returns the PDF as a string
*
* @param array $options Output options
* @return string
*/
function output($options = null) {
$this->_add_page_text();
$debug = isset($options["compress"]) && $options["compress"] != 1;
return $this->_pdf->output($debug);
}
/**
* Returns logging messages generated by the Cpdf class
*
* @return string
*/
function get_messages() {
return $this->_pdf->messages;
}
}
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