function image($img, $x, $y, $w, $h, $resolution = "normal")
{
list($width, $height, $type) = dompdf_getimagesize($img, $this->_dompdf->get_http_context());
$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!!!';
}
}
}
/**
* load and parse a CSS file
*
* @param string $file
*/
function load_css_file($file)
{
global $_dompdf_warnings;
// Prevent circular references
if (isset($this->_loaded_files[$file])) {
return;
}
$this->_loaded_files[$file] = true;
$parsed_url = explode_url($file);
list($this->_protocol, $this->_base_host, $this->_base_path, $filename) = $parsed_url;
if (!DOMPDF_ENABLE_REMOTE && ($this->_protocol != "" && $this->_protocol !== "file://")) {
record_warnings(E_USER_WARNING, "Remote CSS file '{$file}' requested, but DOMPDF_ENABLE_REMOTE is false.", __FILE__, __LINE__);
return;
}
// Fix submitted by Nick Oostveen for aliased directory support:
if ($this->_protocol == "") {
$file = $this->_base_path . $filename;
} else {
$file = build_url($this->_protocol, $this->_base_host, $this->_base_path, $filename);
}
set_error_handler("record_warnings");
$css = file_get_contents($file, null, $this->_dompdf->get_http_context());
restore_error_handler();
if ($css == "") {
record_warnings(E_USER_WARNING, "Unable to load css file {$file}", __FILE__, __LINE__);
return;
}
$this->_parse_css($css);
}
/**
* load and parse a CSS file
*
* @param string $file
*/
function load_css_file($file, $origin = self::ORIG_AUTHOR)
{
global $_dompdf_warnings;
if ($origin) {
$this->_current_origin = $origin;
}
// Prevent circular references
if (isset($this->_loaded_files[$file])) {
return;
}
$this->_loaded_files[$file] = true;
$parsed_url = explode_url($file);
list($this->_protocol, $this->_base_host, $this->_base_path, $filename) = $parsed_url;
// Fix submitted by Nick Oostveen for aliased directory support:
if ($this->_protocol == "") {
$file = $this->_base_path . $filename;
} else {
$file = build_url($this->_protocol, $this->_base_host, $this->_base_path, $filename);
}
set_error_handler("record_warnings");
$css = file_get_contents($file, null, $this->_dompdf->get_http_context());
restore_error_handler();
if ($css == "") {
record_warnings(E_USER_WARNING, "Unable to load css file {$file}", __FILE__, __LINE__);
return;
}
$this->_parse_css($css);
}
/**
* load and parse a CSS file
*
* @param string $file
* @param int $origin
*/
function load_css_file($file, $origin = self::ORIG_AUTHOR) {
if ( $origin ) {
$this->_current_origin = $origin;
}
// Prevent circular references
if ( isset($this->_loaded_files[$file]) ) {
return;
}
$this->_loaded_files[$file] = true;
if ( strpos($file, "data:") === 0) {
$parsed = parse_data_uri($file);
$css = $parsed["data"];
}
else {
$parsed_url = explode_url($file);
list($this->_protocol, $this->_base_host, $this->_base_path, $filename) = $parsed_url;
// Fix submitted by Nick Oostveen for aliased directory support:
if ( $this->_protocol == "" ) {
$file = $this->_base_path . $filename;
}
else {
$file = build_url($this->_protocol, $this->_base_host, $this->_base_path, $filename);
}
set_error_handler("record_warnings");
$css = file_get_contents($file, null, $this->_dompdf->get_http_context());
restore_error_handler();
$good_mime_type = true;
// See http://the-stickman.com/web-development/php/getting-http-response-headers-when-using-file_get_contents/
if ( isset($http_response_header) && !$this->_dompdf->get_quirksmode() ) {
foreach($http_response_header as $_header) {
if ( preg_match("@Content-Type:\s*([\w/]+)@i", $_header, $matches) &&
($matches[1] !== "text/css") ) {
$good_mime_type = false;
}
}
}
if ( !$good_mime_type || $css == "" ) {
record_warnings(E_USER_WARNING, "Unable to load css file $file", __FILE__, __LINE__);
return;
}
}
$this->_parse_css($css);
}
function image($img_url, $x, $y, $w, $h, $resolution = "normal")
{
$w = (int) $w;
$h = (int) $h;
$img_type = Image_Cache::detect_type($img_url, $this->_dompdf->get_http_context());
$img_ext = Image_Cache::type_to_ext($img_type);
if (!isset($this->_imgs[$img_url])) {
$this->_imgs[$img_url] = $this->_pdf->load_image($img_ext, $img_url, "");
}
$img = $this->_imgs[$img_url];
$y = $this->y($y) - $h;
$this->_pdf->fit_image($img, $x, $y, 'boxsize={' . "{$w} {$h}" . '} fitmethod=entire');
}
/**
* parse @font-face{} sections
* http://www.w3.org/TR/css3-fonts/#the-font-face-rule
*
* @param string $str CSS @font-face rules
* @return Style
*/
private function _parse_font_face($str)
{
$descriptors = $this->_parse_properties($str);
preg_match_all("/(url|local)\\s*\\([\"\\']?([^\"\\'\\)]+)[\"\\']?\\)\\s*(format\\s*\\([\"\\']?([^\"\\'\\)]+)[\"\\']?\\))?/i", $descriptors->src, $src);
$sources = array();
$valid_sources = array();
foreach ($src[0] as $i => $value) {
$source = array("local" => strtolower($src[1][$i]) === "local", "uri" => $src[2][$i], "format" => $src[4][$i], "path" => build_url($this->_protocol, $this->_base_host, $this->_base_path, $src[2][$i]));
if (!$source["local"] && in_array($source["format"], array("", "truetype"))) {
$valid_sources[] = $source;
}
$sources[] = $source;
}
// No valid sources
if (empty($valid_sources)) {
return;
}
$style = array("family" => $descriptors->get_font_family_raw(), "weight" => $descriptors->font_weight, "style" => $descriptors->font_style);
Font_Metrics::register_font($style, $valid_sources[0]["path"], $this->_dompdf->get_http_context());
}
/**
* 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
* @internal param string $img_type the type (e.g. extension) of the image
*/
function image($img_url, $x, $y, $w, $h, $resolution = "normal")
{
$img_type = Image_Cache::detect_type($img_url, $this->_dompdf->get_http_context());
$img_ext = Image_Cache::type_to_ext($img_type);
if (!$img_ext) {
return;
}
$func = "imagecreatefrom{$img_ext}";
$src = @$func($img_url);
if (!$src) {
return;
// Probably should add to $_dompdf_errors or whatever here
}
// Scale by the AA factor
$x *= $this->_aa_factor;
$y *= $this->_aa_factor;
$w *= $this->_aa_factor;
$h *= $this->_aa_factor;
$img_w = imagesx($src);
$img_h = imagesy($src);
imagecopyresampled($this->_img, $src, $x, $y, 0, 0, $w, $h, $img_w, $img_h);
}
/**
* Render a background image over a rectangular area
*
* @param string $url The background image to load
* @param float $x The left edge of the rectangular area
* @param float $y The top edge of the rectangular area
* @param float $width The width of the rectangular area
* @param float $height The height of the rectangular area
* @param Style $style The associated Style object
*
* @throws Exception
*/
protected function _background_image($url, $x, $y, $width, $height, $style)
{
if (!function_exists("imagecreatetruecolor")) {
throw new Exception("The PHP GD extension is required, but is not installed.");
}
$sheet = $style->get_stylesheet();
// Skip degenerate cases
if ($width == 0 || $height == 0) {
return;
}
$box_width = $width;
$box_height = $height;
//debugpng
if (DEBUGPNG) {
print '[_background_image ' . $url . ']';
}
list($img, $type, ) = Image_Cache::resolve_url($url, $sheet->get_protocol(), $sheet->get_host(), $sheet->get_base_path(), $this->_dompdf);
// Bail if the image is no good
if (Image_Cache::is_broken($img)) {
return;
}
//Try to optimize away reading and composing of same background multiple times
//Postponing read with imagecreatefrom ...()
//final composition parameters and name not known yet
//Therefore read dimension directly from file, instead of creating gd object first.
//$img_w = imagesx($src); $img_h = imagesy($src);
list($img_w, $img_h) = dompdf_getimagesize($img, $this->_dompdf->get_http_context());
if (!isset($img_w) || $img_w == 0 || !isset($img_h) || $img_h == 0) {
return;
}
$repeat = $style->background_repeat;
$dpi = $this->_dompdf->get_option("dpi");
//Increase background resolution and dependent box size according to image resolution to be placed in
//Then image can be copied in without resize
$bg_width = round((double) ($width * $dpi) / 72);
$bg_height = round((double) ($height * $dpi) / 72);
//Need %bg_x, $bg_y as background pos, where img starts, converted to pixel
list($bg_x, $bg_y) = $style->background_position;
if (is_percent($bg_x)) {
// The point $bg_x % from the left edge of the image is placed
// $bg_x % from the left edge of the background rectangle
$p = (double) $bg_x / 100.0;
$x1 = $p * $img_w;
$x2 = $p * $bg_width;
$bg_x = $x2 - $x1;
} else {
$bg_x = (double) ($style->length_in_pt($bg_x) * $dpi) / 72;
}
$bg_x = round($bg_x + $style->length_in_pt($style->border_left_width) * $dpi / 72);
if (is_percent($bg_y)) {
// The point $bg_y % from the left edge of the image is placed
// $bg_y % from the left edge of the background rectangle
$p = (double) $bg_y / 100.0;
$y1 = $p * $img_h;
$y2 = $p * $bg_height;
$bg_y = $y2 - $y1;
} else {
$bg_y = (double) ($style->length_in_pt($bg_y) * $dpi) / 72;
}
$bg_y = round($bg_y + $style->length_in_pt($style->border_top_width) * $dpi / 72);
//clip background to the image area on partial repeat. Nothing to do if img off area
//On repeat, normalize start position to the tile at immediate left/top or 0/0 of area
//On no repeat with positive offset: move size/start to have offset==0
//Handle x/y Dimensions separately
if ($repeat !== "repeat" && $repeat !== "repeat-x") {
//No repeat x
if ($bg_x < 0) {
$bg_width = $img_w + $bg_x;
} else {
$x += $bg_x * 72 / $dpi;
$bg_width = $bg_width - $bg_x;
if ($bg_width > $img_w) {
$bg_width = $img_w;
}
$bg_x = 0;
}
if ($bg_width <= 0) {
return;
}
$width = (double) ($bg_width * 72) / $dpi;
} else {
//repeat x
if ($bg_x < 0) {
$bg_x = -(-$bg_x % $img_w);
} else {
$bg_x = $bg_x % $img_w;
if ($bg_x > 0) {
$bg_x -= $img_w;
}
}
}
if ($repeat !== "repeat" && $repeat !== "repeat-y") {
//no repeat y
if ($bg_y < 0) {
$bg_height = $img_h + $bg_y;
} else {
$y += $bg_y * 72 / $dpi;
$bg_height = $bg_height - $bg_y;
if ($bg_height > $img_h) {
$bg_height = $img_h;
}
$bg_y = 0;
}
if ($bg_height <= 0) {
return;
}
$height = (double) ($bg_height * 72) / $dpi;
} else {
//repeat y
if ($bg_y < 0) {
$bg_y = -(-$bg_y % $img_h);
} else {
$bg_y = $bg_y % $img_h;
if ($bg_y > 0) {
$bg_y -= $img_h;
}
}
}
//Optimization, if repeat has no effect
if ($repeat === "repeat" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) {
$repeat = "repeat-x";
}
if ($repeat === "repeat" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width) {
$repeat = "repeat-y";
}
if ($repeat === "repeat-x" && $bg_x <= 0 && $img_w + $bg_x >= $bg_width || $repeat === "repeat-y" && $bg_y <= 0 && $img_h + $bg_y >= $bg_height) {
$repeat = "no-repeat";
}
//Use filename as indicator only
//different names for different variants to have different copies in the pdf
//This is not dependent of background color of box! .'_'.(is_array($bg_color) ? $bg_color["hex"] : $bg_color)
//Note: Here, bg_* are the start values, not end values after going through the tile loops!
$filedummy = $img;
$is_png = false;
$filedummy .= '_' . $bg_width . '_' . $bg_height . '_' . $bg_x . '_' . $bg_y . '_' . $repeat;
//Optimization to avoid multiple times rendering the same image.
//If check functions are existing and identical image already cached,
//then skip creation of duplicate, because it is not needed by addImagePng
if ($this->_canvas instanceof CPDF_Adapter && $this->_canvas->get_cpdf()->image_iscached($filedummy)) {
$bg = null;
} else {
// Create a new image to fit over the background rectangle
$bg = imagecreatetruecolor($bg_width, $bg_height);
switch (strtolower($type)) {
case IMAGETYPE_PNG:
$is_png = true;
imagesavealpha($bg, true);
imagealphablending($bg, false);
$src = imagecreatefrompng($img);
break;
case IMAGETYPE_JPEG:
$src = imagecreatefromjpeg($img);
break;
case IMAGETYPE_GIF:
$src = imagecreatefromgif($img);
break;
case IMAGETYPE_BMP:
$src = imagecreatefrombmp($img);
break;
default:
return;
// Unsupported image type
}
if ($src == null) {
return;
}
//Background color if box is not relevant here
//Non transparent image: box clipped to real size. Background non relevant.
//Transparent image: The image controls the transparency and lets shine through whatever background.
//However on transparent image preset the composed image with the transparency color,
//to keep the transparency when copying over the non transparent parts of the tiles.
$ti = imagecolortransparent($src);
if ($ti >= 0) {
$tc = imagecolorsforindex($src, $ti);
$ti = imagecolorallocate($bg, $tc['red'], $tc['green'], $tc['blue']);
imagefill($bg, 0, 0, $ti);
imagecolortransparent($bg, $ti);
}
//This has only an effect for the non repeatable dimension.
//compute start of src and dest coordinates of the single copy
if ($bg_x < 0) {
$dst_x = 0;
$src_x = -$bg_x;
} else {
$src_x = 0;
$dst_x = $bg_x;
}
if ($bg_y < 0) {
$dst_y = 0;
$src_y = -$bg_y;
} else {
$src_y = 0;
$dst_y = $bg_y;
}
//For historical reasons exchange meanings of variables:
//start_* will be the start values, while bg_* will be the temporary start values in the loops
$start_x = $bg_x;
$start_y = $bg_y;
// Copy regions from the source image to the background
if ($repeat === "no-repeat") {
// Simply place the image on the background
imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $img_h);
} else {
if ($repeat === "repeat-x") {
for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) {
if ($bg_x < 0) {
$dst_x = 0;
$src_x = -$bg_x;
$w = $img_w + $bg_x;
} else {
$dst_x = $bg_x;
$src_x = 0;
$w = $img_w;
}
imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $img_h);
}
} else {
if ($repeat === "repeat-y") {
for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) {
if ($bg_y < 0) {
$dst_y = 0;
$src_y = -$bg_y;
$h = $img_h + $bg_y;
} else {
$dst_y = $bg_y;
$src_y = 0;
$h = $img_h;
}
imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $img_w, $h);
}
} else {
if ($repeat === "repeat") {
for ($bg_y = $start_y; $bg_y < $bg_height; $bg_y += $img_h) {
for ($bg_x = $start_x; $bg_x < $bg_width; $bg_x += $img_w) {
if ($bg_x < 0) {
$dst_x = 0;
$src_x = -$bg_x;
$w = $img_w + $bg_x;
} else {
$dst_x = $bg_x;
$src_x = 0;
$w = $img_w;
}
if ($bg_y < 0) {
$dst_y = 0;
$src_y = -$bg_y;
$h = $img_h + $bg_y;
} else {
$dst_y = $bg_y;
$src_y = 0;
$h = $img_h;
}
imagecopy($bg, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h);
}
}
} else {
print 'Unknown repeat!';
}
}
}
}
imagedestroy($src);
}
/* End optimize away creation of duplicates */
$this->_canvas->clipping_rectangle($x, $y, $box_width, $box_height);
//img: image url string
//img_w, img_h: original image size in px
//width, height: box size in pt
//bg_width, bg_height: box size in px
//x, y: left/top edge of box on page in pt
//start_x, start_y: placement of image relative to pattern
//$repeat: repeat mode
//$bg: GD object of result image
//$src: GD object of original image
//When using cpdf and optimization to direct png creation from gd object is available,
//don't create temp file, but place gd object directly into the pdf
if (!$is_png && $this->_canvas instanceof CPDF_Adapter) {
// Note: CPDF_Adapter image converts y position
$this->_canvas->get_cpdf()->addImagePng($filedummy, $x, $this->_canvas->get_height() - $y - $height, $width, $height, $bg);
} else {
$tmp_dir = $this->_dompdf->get_option("temp_dir");
$tmp_name = tempnam($tmp_dir, "bg_dompdf_img_");
@unlink($tmp_name);
$tmp_file = "{$tmp_name}.png";
//debugpng
if (DEBUGPNG) {
print '[_background_image ' . $tmp_file . ']';
}
imagepng($bg, $tmp_file);
$this->_canvas->image($tmp_file, $x, $y, $width, $height);
imagedestroy($bg);
//debugpng
if (DEBUGPNG) {
print '[_background_image unlink ' . $tmp_file . ']';
}
if (!DEBUGKEEPTEMP) {
unlink($tmp_file);
}
}
$this->_canvas->clipping_end();
}
/**
* Resolve and fetch an image for use.
*
* @param string $url The url of the image
* @param string $protocol Default protocol if none specified in $url
* @param string $host Default host if none specified in $url
* @param string $base_path Default path if none specified in $url
* @param DOMPDF $dompdf The DOMPDF instance
*
* @throws DOMPDF_Image_Exception
* @return array An array with two elements: The local path to the image and the image extension
*/
static function resolve_url($url, $protocol, $host, $base_path, DOMPDF $dompdf)
{
$protocol = mb_strtolower($protocol);
$parsed_url = explode_url($url);
$message = null;
$remote = $protocol && $protocol !== "file://" || $parsed_url['protocol'] != "";
$data_uri = strpos($parsed_url['protocol'], "data:") === 0;
$full_url = null;
$enable_remote = $dompdf->get_option("enable_remote");
try {
// Remote not allowed and is not DataURI
if (!$enable_remote && $remote && !$data_uri) {
throw new DOMPDF_Image_Exception("DOMPDF_ENABLE_REMOTE is set to FALSE");
} else {
if ($enable_remote && $remote || $data_uri) {
// Download remote files to a temporary directory
$full_url = build_url($protocol, $host, $base_path, $url);
// From cache
if (isset(self::$_cache[$full_url])) {
$resolved_url = self::$_cache[$full_url];
} else {
$tmp_dir = $dompdf->get_option("temp_dir");
$resolved_url = tempnam($tmp_dir, "ca_dompdf_img_");
$image = "";
if ($data_uri) {
if ($parsed_data_uri = parse_data_uri($url)) {
$image = $parsed_data_uri['data'];
}
} else {
set_error_handler("record_warnings");
$image = file_get_contents($full_url, null, $dompdf->get_http_context());
restore_error_handler();
}
// Image not found or invalid
if (strlen($image) == 0) {
$msg = $data_uri ? "Data-URI could not be parsed" : "Image not found";
throw new DOMPDF_Image_Exception($msg);
} else {
//e.g. fetch.php?media=url.jpg&cache=1
//- Image file name might be one of the dynamic parts of the url, don't strip off!
//- a remote url does not need to have a file extension at all
//- local cached file does not have a matching file extension
//Therefore get image type from the content
file_put_contents($resolved_url, $image);
}
}
} else {
$resolved_url = build_url($protocol, $host, $base_path, $url);
}
}
// Check if the local file is readable
if (!is_readable($resolved_url) || !filesize($resolved_url)) {
throw new DOMPDF_Image_Exception("Image not readable or empty");
} else {
list($width, $height, $type) = dompdf_getimagesize($resolved_url, $dompdf->get_http_context());
// Known image type
if ($width && $height && in_array($type, array(IMAGETYPE_GIF, IMAGETYPE_PNG, IMAGETYPE_JPEG, IMAGETYPE_BMP))) {
//Don't put replacement image into cache - otherwise it will be deleted on cache cleanup.
//Only execute on successful caching of remote image.
if ($enable_remote && $remote || $data_uri) {
self::$_cache[$full_url] = $resolved_url;
}
} else {
throw new DOMPDF_Image_Exception("Image type unknown");
}
}
} catch (DOMPDF_Image_Exception $e) {
$resolved_url = self::$broken_image;
$type = IMAGETYPE_PNG;
$message = "Image not found or type unknown";
$_dompdf_warnings[] = $e->getMessage() . " :: {$url}";
}
return array($resolved_url, $type, $message);
}
