0byte V.2
PHP Backdoor

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/home/vhtecindia/public_html/bcvps.in/application/libraries/dompdf2/src/Adapter/

* @author Fabien Ménager * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License */ namespace Dompdf\Adapter; use Dompdf\Canvas; use Dompdf\Dompdf; use Dompdf\Image\Cache; use Dompdf\Helpers; /** * Image rendering interface * * Renders to an image format supported by GD (jpeg, gif, png, xpm). * Not super-useful day-to-day but handy nonetheless * * @package dompdf */ class GD implements Canvas { /** * @var Dompdf */ protected $_dompdf; /** * Resource handle for the image * * @var resource */ protected $_img; /** * Resource handle for the image * * @var resource[] */ protected $_imgs; /** * Apparent canvas width in pixels * * @var int */ protected $_width; /** * Apparent canvas height in pixels * * @var int */ protected $_height; /** * Actual image width in pixels * * @var int */ protected $_actual_width; /** * Actual image height in pixels * * @var int */ protected $_actual_height; /** * Current page number * * @var int */ protected $_page_number; /** * Total number of pages * * @var int */ protected $_page_count; /** * Image antialias factor * * @var float */ protected $_aa_factor; /** * Allocated colors * * @var array */ protected $_colors; /** * Background color * * @var int */ protected $_bg_color; /** * Background color array * * @var int */ protected $_bg_color_array; /** * Actual DPI * * @var int */ protected $dpi; /** * Amount to scale font sizes * * Font sizes are 72 DPI, GD internally uses 96. Scale them proportionally. * 72 / 96 = 0.75. * * @var float */ const FONT_SCALE = 0.75; /** * Class constructor * * @param mixed $size The size of image to create: array(x1,y1,x2,y2) or "letter", "legal", etc. * @param string $orientation The orientation of the document (either 'landscape' or 'portrait') * @param Dompdf $dompdf * @param float $aa_factor Anti-aliasing factor, 1 for no AA * @param array $bg_color Image background color: array(r,g,b,a), 0 <= r,g,b,a <= 1 */ public function __construct($size = 'letter', $orientation = "portrait", Dompdf $dompdf = null, $aa_factor = 1.0, $bg_color = [1, 1, 1, 0]) { if (!is_array($size)) { $size = strtolower($size); if (isset(CPDF::$PAPER_SIZES[$size])) { $size = CPDF::$PAPER_SIZES[$size]; } else { $size = CPDF::$PAPER_SIZES["letter"]; } } if (strtolower($orientation) === "landscape") { list($size[2], $size[3]) = [$size[3], $size[2]]; } if ($dompdf === null) { $this->_dompdf = new Dompdf(); } else { $this->_dompdf = $dompdf; } $this->dpi = $this->get_dompdf()->getOptions()->getDpi(); if ($aa_factor < 1) { $aa_factor = 1; } $this->_aa_factor = $aa_factor; $size[2] *= $aa_factor; $size[3] *= $aa_factor; $this->_width = $size[2] - $size[0]; $this->_height = $size[3] - $size[1]; $this->_actual_width = $this->_upscale($this->_width); $this->_actual_height = $this->_upscale($this->_height); $this->_page_number = $this->_page_count = 1; $this->_page_text = []; if (is_null($bg_color) || !is_array($bg_color)) { // Pure white bg $bg_color = [1, 1, 1, 0]; } $this->_bg_color_array = $bg_color; $this->new_page(); } /** * @return Dompdf */ public function get_dompdf() { return $this->_dompdf; } /** * Return the GF image resource * * @return resource */ public function get_image() { return $this->_img; } /** * Return the image's width in pixels * * @return float */ public function get_width() { return $this->_width / $this->_aa_factor; } /** * Return the image's height in pixels * * @return float */ public function get_height() { return $this->_height / $this->_aa_factor; } /** * Returns the current page number * @return int */ public function get_page_number() { return $this->_page_number; } /** * Returns the total number of pages in the document * @return int */ public function get_page_count() { return $this->_page_count; } /** * Sets the current page number * * @param int $num */ public function set_page_number($num) { $this->_page_number = $num; } /** * Sets the page count * * @param int $count */ public function set_page_count($count) { $this->_page_count = $count; } /** * Sets the opacity * * @param $opacity * @param $mode */ public function set_opacity($opacity, $mode = "Normal") { // FIXME } /** * Allocate a new color. Allocate with GD as needed and store * previously allocated colors in $this->_colors. * * @param array $color The new current color * @return int The allocated color */ protected function _allocate_color($color) { $a = isset($color["alpha"]) ? $color["alpha"] : 1; if (isset($color["c"])) { $color = Helpers::cmyk_to_rgb($color); } list($r, $g, $b) = $color; $r *= 255; $g *= 255; $b *= 255; $a = 127 - ($a * 127); // Clip values $r = $r > 255 ? 255 : $r; $g = $g > 255 ? 255 : $g; $b = $b > 255 ? 255 : $b; $a = $a > 127 ? 127 : $a; $r = $r < 0 ? 0 : $r; $g = $g < 0 ? 0 : $g; $b = $b < 0 ? 0 : $b; $a = $a < 0 ? 0 : $a; $key = sprintf("#%02X%02X%02X%02X", $r, $g, $b, $a); if (isset($this->_colors[$key])) { return $this->_colors[$key]; } if ($a != 0) { $this->_colors[$key] = imagecolorallocatealpha($this->get_image(), $r, $g, $b, $a); } else { $this->_colors[$key] = imagecolorallocate($this->get_image(), $r, $g, $b); } return $this->_colors[$key]; } /** * Scales value up to the current canvas DPI from 72 DPI * * @param float $length * @return float */ protected function _upscale($length) { return ($length * $this->dpi) / 72 * $this->_aa_factor; } /** * Scales value down from the current canvas DPI to 72 DPI * * @param float $length * @return float */ protected function _downscale($length) { return ($length / $this->dpi * 72) / $this->_aa_factor; } /** * Draws a line from x1,y1 to x2,y2 * * See {@link Style::munge_color()} for the format of the color array. * See {@link Cpdf::setLineStyle()} for a description of the format of the * $style parameter (aka dash). * * @param float $x1 * @param float $y1 * @param float $x2 * @param float $y2 * @param array $color * @param float $width * @param array $style */ public function line($x1, $y1, $x2, $y2, $color, $width, $style = null) { // Scale by the AA factor and DPI $x1 = $this->_upscale($x1); $y1 = $this->_upscale($y1); $x2 = $this->_upscale($x2); $y2 = $this->_upscale($y2); $width = $this->_upscale($width); $c = $this->_allocate_color($color); // Convert the style array if required if (is_array($style) && count($style) > 0) { $gd_style = []; if (count($style) == 1) { for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { $gd_style[] = $c; } for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { $gd_style[] = $this->_bg_color; } } else { $i = 0; foreach ($style as $length) { if ($i % 2 == 0) { // 'On' pattern for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { $gd_style[] = $c; } } else { // Off pattern for ($i = 0; $i < $style[0] * $this->_aa_factor; $i++) { $gd_style[] = $this->_bg_color; } } $i++; } } if (!empty($gd_style)) { imagesetstyle($this->get_image(), $gd_style); $c = IMG_COLOR_STYLED; } } imagesetthickness($this->get_image(), $width); imageline($this->get_image(), $x1, $y1, $x2, $y2, $c); } /** * @param float $x1 * @param float $y1 * @param float $r1 * @param float $r2 * @param float $astart * @param float $aend * @param array $color * @param float $width * @param array $style */ public function arc($x1, $y1, $r1, $r2, $astart, $aend, $color, $width, $style = []) { // @todo } /** * Draws a rectangle at x1,y1 with width w and height h * * See {@link Style::munge_color()} for the format of the color array. * See {@link Cpdf::setLineStyle()} for a description of the $style * parameter (aka dash) * * @param float $x1 * @param float $y1 * @param float $w * @param float $h * @param array $color * @param float $width * @param array $style */ public function rectangle($x1, $y1, $w, $h, $color, $width, $style = null) { // Scale by the AA factor and DPI $x1 = $this->_upscale($x1); $y1 = $this->_upscale($y1); $w = $this->_upscale($w); $h = $this->_upscale($h); $width = $this->_upscale($width); $c = $this->_allocate_color($color); // Convert the style array if required if (is_array($style) && count($style) > 0) { $gd_style = []; foreach ($style as $length) { for ($i = 0; $i < $length; $i++) { $gd_style[] = $c; } } if (!empty($gd_style)) { imagesetstyle($this->get_image(), $gd_style); $c = IMG_COLOR_STYLED; } } imagesetthickness($this->get_image(), $width); imagerectangle($this->get_image(), $x1, $y1, $x1 + $w, $y1 + $h, $c); } /** * Draws a filled rectangle at x1,y1 with width w and height h * * See {@link Style::munge_color()} for the format of the color array. * * @param float $x1 * @param float $y1 * @param float $w * @param float $h * @param array $color */ public function filled_rectangle($x1, $y1, $w, $h, $color) { // Scale by the AA factor and DPI $x1 = $this->_upscale($x1); $y1 = $this->_upscale($y1); $w = $this->_upscale($w); $h = $this->_upscale($h); $c = $this->_allocate_color($color); imagefilledrectangle($this->get_image(), $x1, $y1, $x1 + $w, $y1 + $h, $c); } /** * Starts a clipping rectangle at x1,y1 with width w and height h * * @param float $x1 * @param float $y1 * @param float $w * @param float $h */ public function clipping_rectangle($x1, $y1, $w, $h) { // @todo } public function clipping_roundrectangle($x1, $y1, $w, $h, $rTL, $rTR, $rBR, $rBL) { // @todo } /** * Ends the last clipping shape */ public function clipping_end() { // @todo } /** * */ public function save() { $this->get_dompdf()->getOptions()->setDpi(72); } /** * */ public function restore() { $this->get_dompdf()->getOptions()->setDpi($this->dpi); } /** * @param $angle * @param $x * @param $y */ public function rotate($angle, $x, $y) { // @todo } /** * @param $angle_x * @param $angle_y * @param $x * @param $y */ public function skew($angle_x, $angle_y, $x, $y) { // @todo } /** * @param $s_x * @param $s_y * @param $x * @param $y */ public function scale($s_x, $s_y, $x, $y) { // @todo } /** * @param $t_x * @param $t_y */ public function translate($t_x, $t_y) { // @todo } /** * @param $a * @param $b * @param $c * @param $d * @param $e * @param $f */ public function transform($a, $b, $c, $d, $e, $f) { // @todo } /** * Draws a polygon * * The polygon is formed by joining all the points stored in the $points * array. $points has the following structure: *


     * array(0 => x1,
     *       1 => y1,
     *       2 => x2,
     *       3 => y2,
     *       ...
     *       );
     *

* * See {@link Style::munge_color()} for the format of the color array. * See {@link Cpdf::setLineStyle()} for a description of the $style * parameter (aka dash) * * @param array $points * @param array $color * @param float $width * @param array $style * @param bool $fill Fills the polygon if true */ public function polygon($points, $color, $width = null, $style = null, $fill = false) { // Scale each point by the AA factor and DPI foreach (array_keys($points) as $i) { $points[$i] = $this->_upscale($points[$i]); } $c = $this->_allocate_color($color); // Convert the style array if required if (is_array($style) && count($style) > 0 && !$fill) { $gd_style = []; foreach ($style as $length) { for ($i = 0; $i < $length; $i++) { $gd_style[] = $c; } } if (!empty($gd_style)) { imagesetstyle($this->get_image(), $gd_style); $c = IMG_COLOR_STYLED; } } imagesetthickness($this->get_image(), $width); if ($fill) { imagefilledpolygon($this->get_image(), $points, count($points) / 2, $c); } else { imagepolygon($this->get_image(), $points, count($points) / 2, $c); } } /** * Draws a circle at $x,$y with radius $r * * See {@link Style::munge_color()} for the format of the color array. * See {@link Cpdf::setLineStyle()} for a description of the $style * parameter (aka dash) * * @param float $x * @param float $y * @param float $r * @param array $color * @param float $width * @param array $style * @param bool $fill Fills the circle if true */ public function circle($x, $y, $r, $color, $width = null, $style = null, $fill = false) { // Scale by the AA factor and DPI $x = $this->_upscale($x); $y = $this->_upscale($y); $r = $this->_upscale($r); $c = $this->_allocate_color($color); // Convert the style array if required if (is_array($style) && count($style) > 0 && !$fill) { $gd_style = []; foreach ($style as $length) { for ($i = 0; $i < $length; $i++) { $gd_style[] = $c; } } if (!empty($gd_style)) { imagesetstyle($this->get_image(), $gd_style); $c = IMG_COLOR_STYLED; } } imagesetthickness($this->get_image(), $width); if ($fill) { imagefilledellipse($this->get_image(), $x, $y, $r, $r, $c); } else { imageellipse($this->get_image(), $x, $y, $r, $r, $c); } } /** * Add an image to the pdf. * The image is placed at the specified x and y coordinates with the * given width and height. * * @param string $img_url the path to the image * @param float $x x position * @param float $y y position * @param int $w width (in pixels) * @param int $h height (in pixels) * @param string $resolution * @return void * * @throws \Exception * @internal param string $img_type the type (e.g. extension) of the image */ public function image($img_url, $x, $y, $w, $h, $resolution = "normal") { $img_type = Cache::detect_type($img_url, $this->get_dompdf()->getHttpContext()); if (!$img_type) { return; } $func_name = "imagecreatefrom$img_type"; if (!function_exists($func_name)) { if (!method_exists("Dompdf\Helpers", $func_name)) { throw new \Exception("Function $func_name() not found. Cannot convert $img_type image: $img_url. Please install the image PHP extension."); } $func_name = "\\Dompdf\\Helpers::" . $func_name; } $src = @call_user_func($func_name, $img_url); if (!$src) { return; // Probably should add to $_dompdf_errors or whatever here } // Scale by the AA factor and DPI $x = $this->_upscale($x); $y = $this->_upscale($y); $w = $this->_upscale($w); $h = $this->_upscale($h); $img_w = imagesx($src); $img_h = imagesy($src); imagecopyresampled($this->get_image(), $src, $x, $y, 0, 0, $w, $h, $img_w, $img_h); } /** * Writes text at the specified x and y coordinates * See {@link Style::munge_color()} for the format of the color 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_spacing word spacing adjustment * @param float $char_spacing * @param float $angle Text angle * * @return void */ public function text($x, $y, $text, $font, $size, $color = [0, 0, 0], $word_spacing = 0.0, $char_spacing = 0.0, $angle = 0.0) { // Scale by the AA factor and DPI $x = $this->_upscale($x); $y = $this->_upscale($y); $size = $this->_upscale($size) * self::FONT_SCALE; $h = $this->get_font_height_actual($font, $size); $c = $this->_allocate_color($color); // imagettftext() converts numeric entities to their respective // character. Preserve any originally double encoded entities to be // represented as is. // eg:   will render rather than its character. $text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $text); $text = mb_encode_numericentity($text, [0x0080, 0xff, 0, 0xff], 'UTF-8'); $font = $this->get_ttf_file($font); // FIXME: word spacing imagettftext($this->get_image(), $size, $angle, $x, $y + $h, $c, $font, $text); } public function javascript($code) { // Not implemented } /** * Add a named destination (similar to ... in html) * * @param string $anchorname The name of the named destination */ public function add_named_dest($anchorname) { // Not implemented } /** * 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 $height The height of the link */ public function add_link($url, $x, $y, $width, $height) { // Not implemented } /** * Add meta information to the PDF * * @param string $label label of the value (Creator, Producer, etc.) * @param string $value the text to set */ public function add_info($label, $value) { // N/A } /** * @param string $view * @param array $options */ public function set_default_view($view, $options = []) { // N/A } /** * Calculates text size, in points * * @param string $text the text to be sized * @param string $font the desired font * @param float $size the desired font size * @param float $word_spacing word spacing, if any * @param float $char_spacing char spacing, if any * * @return float */ public function get_text_width($text, $font, $size, $word_spacing = 0.0, $char_spacing = 0.0) { $font = $this->get_ttf_file($font); $size = $this->_upscale($size) * self::FONT_SCALE; // imagettfbbox() converts numeric entities to their respective // character. Preserve any originally double encoded entities to be // represented as is. // eg:   will render rather than its character. $text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $text); $text = mb_encode_numericentity($text, [0x0080, 0xffff, 0, 0xffff], 'UTF-8'); // FIXME: word spacing list($x1, , $x2) = imagettfbbox($size, 0, $font, $text); // Add additional 1pt to prevent text overflow issues return $this->_downscale($x2 - $x1) + 1; } /** * @param $font * @return string */ public function get_ttf_file($font) { if ( stripos($font, ".ttf") === false ) { $font .= ".ttf"; } if (!file_exists($font)) { $font_metrics = $this->_dompdf->getFontMetrics(); $font = $font_metrics->getFont($this->_dompdf->getOptions()->getDefaultFont()) . ".ttf"; if (!file_exists($font)) { if (strpos($font, "mono")) { $font = $font_metrics->getFont("DejaVu Mono") . ".ttf"; } elseif (strpos($font, "sans") !== false) { $font = $font_metrics->getFont("DejaVu Sans") . ".ttf"; } elseif (strpos($font, "serif")) { $font = $font_metrics->getFont("DejaVu Serif") . ".ttf"; } else { $font = $font_metrics->getFont("DejaVu Sans") . ".ttf"; } } } return $font; } /** * Calculates font height, in points * * @param string $font * @param float $size * @return float */ public function get_font_height($font, $size) { $size = $this->_upscale($size) * self::FONT_SCALE; $height = $this->get_font_height_actual($font, $size); return $this->_downscale($height); } protected function get_font_height_actual($font, $size) { $font = $this->get_ttf_file($font); $ratio = $this->_dompdf->getOptions()->getFontHeightRatio(); // FIXME: word spacing list(, $y2, , , , $y1) = imagettfbbox($size, 0, $font, "MXjpqytfhl"); // Test string with ascenders, descenders and caps return ($y2 - $y1) * $ratio; } /** * @param string $font * @param float $size * @return float */ public function get_font_baseline($font, $size) { $ratio = $this->_dompdf->getOptions()->getFontHeightRatio(); return $this->get_font_height($font, $size) / $ratio; } /** * Starts a new page * * Subsequent drawing operations will appear on the new page. */ public function new_page() { $this->_page_number++; $this->_page_count++; $this->_img = imagecreatetruecolor($this->_actual_width, $this->_actual_height); $this->_bg_color = $this->_allocate_color($this->_bg_color_array); imagealphablending($this->_img, true); imagesavealpha($this->_img, true); imagefill($this->_img, 0, 0, $this->_bg_color); $this->_imgs[] = $this->_img; } public function open_object() { // N/A } public function close_object() { // N/A } public function add_object() { // N/A } /** * 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 color 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 $angle angle to write the text at, measured CW starting from the x-axis */ public function page_text($x, $y, $text, $font, $size, $color = [0, 0, 0], $word_space = 0.0, $char_space = 0.0, $angle = 0.0) { // N/A } public function page_line() { // N/A } /** * Streams the image to the client. * * @param string $filename The filename to present to the client. * @param array $options Associative array: 'type' => jpeg|jpg|png; 'quality' => 0 - 100 (JPEG only); * 'page' => Number of the page to output (defaults to the first); 'Attachment': 1 or 0 (default 1). */ public function stream($filename, $options = []) { if (headers_sent()) { die("Unable to stream image: headers already sent"); } if (!isset($options["type"])) $options["type"] = "png"; if (!isset($options["Attachment"])) $options["Attachment"] = true; $type = strtolower($options["type"]); switch ($type) { case "jpg": case "jpeg": $contentType = "image/jpeg"; $extension = ".jpg"; break; case "png": default: $contentType = "image/png"; $extension = ".png"; break; } header("Cache-Control: private"); header("Content-Type: $contentType"); $filename = str_replace(["\n", "'"], "", basename($filename, ".$type")) . $extension; $attachment = $options["Attachment"] ? "attachment" : "inline"; header(Helpers::buildContentDispositionHeader($attachment, $filename)); $this->_output($options); flush(); } /** * Returns the image as a string. * * @param array $options Associative array: 'type' => jpeg|jpg|png; 'quality' => 0 - 100 (JPEG only); * 'page' => Number of the page to output (defaults to the first). * @return string */ public function output($options = []) { ob_start(); $this->_output($options); return ob_get_clean(); } /** * Outputs the image stream directly. * * @param array $options Associative array: 'type' => jpeg|jpg|png; 'quality' => 0 - 100 (JPEG only); * 'page' => Number of the page to output (defaults to the first). */ protected function _output($options = []) { if (!isset($options["type"])) $options["type"] = "png"; if (!isset($options["page"])) $options["page"] = 1; $type = strtolower($options["type"]); if (isset($this->_imgs[$options["page"] - 1])) { $img = $this->_imgs[$options["page"] - 1]; } else { $img = $this->_imgs[0]; } // Perform any antialiasing if ($this->_aa_factor != 1) { $dst_w = $this->_actual_width / $this->_aa_factor; $dst_h = $this->_actual_height / $this->_aa_factor; $dst = imagecreatetruecolor($dst_w, $dst_h); imagecopyresampled($dst, $img, 0, 0, 0, 0, $dst_w, $dst_h, $this->_actual_width, $this->_actual_height); } else { $dst = $img; } switch ($type) { case "jpg": case "jpeg": if (!isset($options["quality"])) { $options["quality"] = 75; } imagejpeg($dst, null, $options["quality"]); break; case "png": default: imagepng($dst); break; } if ($this->_aa_factor != 1) { imagedestroy($dst); } } }

0byte V.2PHP Backdoor

0byte V.2
PHP Backdoor