编辑文件 - dompdf.php

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<?php
/**
 * Command line utility to use dompdf.
 * Can also be used with HTTP GET parameters
 * 
 * @package dompdf
 * @link    http://dompdf.github.com/
 * @author  Benj Carson <benjcarson@digitaljunkies.ca>
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 */

/**
 * Display command line usage
 */
function dompdf_usage() {
  $default_paper_size = DOMPDF_DEFAULT_PAPER_SIZE;
  
  echo <<<EOD
  
Usage: {$_SERVER["argv"][0]} [options] html_file

html_file can be a filename, a url if fopen_wrappers are enabled, or the '-' character to read from standard input.

Options:
 -h             Show this message
 -l             List available paper sizes
 -p size        Paper size; something like 'letter', 'A4', 'legal', etc.  
                  The default is '$default_paper_size'
 -o orientation Either 'portrait' or 'landscape'.  Default is 'portrait'
 -b path        Set the 'document root' of the html_file.  
                  Relative urls (for stylesheets) are resolved using this directory.  
                  Default is the directory of html_file.
 -f file        The output filename.  Default is the input [html_file].pdf
 -v             Verbose: display html parsing warnings and file not found errors.
 -d             Very verbose: display oodles of debugging output: every frame 
                  in the tree printed to stdout.
 -t             Comma separated list of debugging types (page-break,reflow,split)
 
EOD;
exit;
}

/**
 * Parses command line options
 * 
 * @return array The command line options
 */
function getoptions() {

$opts = array();

if ( $_SERVER["argc"] == 1 )
    return $opts;

$i = 1;
  while ($i < $_SERVER["argc"]) {

switch ($_SERVER["argv"][$i]) {

case "--help":
    case "-h":
      $opts["h"] = true;
      $i++;
      break;

case "-l":
      $opts["l"] = true;
      $i++;
      break;

case "-p":
      if ( !isset($_SERVER["argv"][$i+1]) )
        die("-p switch requires a size parameter\n");
      $opts["p"] = $_SERVER["argv"][$i+1];
      $i += 2;
      break;

case "-o":
      if ( !isset($_SERVER["argv"][$i+1]) )
        die("-o switch requires an orientation parameter\n");
      $opts["o"] = $_SERVER["argv"][$i+1];
      $i += 2;
      break;

case "-b":
      if ( !isset($_SERVER["argv"][$i+1]) )
        die("-b switch requires a path parameter\n");
      $opts["b"] = $_SERVER["argv"][$i+1];
      $i += 2;
      break;

case "-f":
      if ( !isset($_SERVER["argv"][$i+1]) )
        die("-f switch requires a filename parameter\n");
      $opts["f"] = $_SERVER["argv"][$i+1];
      $i += 2;
      break;

case "-v":
      $opts["v"] = true;
      $i++;
      break;

case "-d":
      $opts["d"] = true;
      $i++;
      break;

case "-t":
      if ( !isset($_SERVER['argv'][$i + 1]) )
        die("-t switch requires a comma separated list of types\n");
      $opts["t"] = $_SERVER['argv'][$i+1];
      $i += 2;
      break;

default:
      $opts["filename"] = $_SERVER["argv"][$i];
      $i++;
      break;
    }

}
  return $opts;
}

require_once("dompdf_config.inc.php");
global $_dompdf_show_warnings, $_dompdf_debug, $_DOMPDF_DEBUG_TYPES;

$sapi = php_sapi_name();
$options = array();

switch ( $sapi ) {

case "cli":

$opts = getoptions();

if ( isset($opts["h"]) || (!isset($opts["filename"]) && !isset($opts["l"])) ) {
    dompdf_usage();
    exit;
  }

if ( isset($opts["l"]) ) {
    echo "\nUnderstood paper sizes:\n";

foreach (array_keys(CPDF_Adapter::$PAPER_SIZES) as $size)
      echo "  " . mb_strtoupper($size) . "\n";
    exit;
  }
  $file = $opts["filename"];

if ( isset($opts["p"]) )
    $paper = $opts["p"];
  else
    $paper = DOMPDF_DEFAULT_PAPER_SIZE;

if ( isset($opts["o"]) )
    $orientation = $opts["o"];
  else
    $orientation = "portrait";

if ( isset($opts["b"]) )
    $base_path = $opts["b"];

if ( isset($opts["f"]) )
    $outfile = $opts["f"];
  else {
    if ( $file === "-" )
      $outfile = "dompdf_out.pdf";
    else
      $outfile = str_ireplace(array(".html", ".htm", ".php"), "", $file) . ".pdf";
  }

if ( isset($opts["v"]) )
    $_dompdf_show_warnings = true;

if ( isset($opts["d"]) ) {
    $_dompdf_show_warnings = true;
    $_dompdf_debug = true;
  }

if ( isset($opts['t']) ) {
    $arr = split(',',$opts['t']);
    $types = array();
    foreach ($arr as $type)
      $types[ trim($type) ] = 1;
    $_DOMPDF_DEBUG_TYPES = $types;
  }
  
  $save_file = true;

break;

default:

if ( isset($_GET["input_file"]) )
    $file = rawurldecode($_GET["input_file"]);
  else
    throw new DOMPDF_Exception("An input file is required (i.e. input_file _GET variable).");
  
  if ( isset($_GET["paper"]) )
    $paper = rawurldecode($_GET["paper"]);
  else
    $paper = DOMPDF_DEFAULT_PAPER_SIZE;
  
  if ( isset($_GET["orientation"]) )
    $orientation = rawurldecode($_GET["orientation"]);
  else
    $orientation = "portrait";
  
  if ( isset($_GET["base_path"]) ) {
    $base_path = rawurldecode($_GET["base_path"]);
    $file = $base_path . $file; # Set the input file
  }  
  
  if ( isset($_GET["options"]) ) {
    $options = $_GET["options"];
  }
  
  $file_parts = explode_url($file);
  
  /* Check to see if the input file is local and, if so, that the base path falls within that specified by DOMDPF_CHROOT */
  if(($file_parts['protocol'] == '' || $file_parts['protocol'] === 'file://')) {
    $file = realpath($file);
    if ( strpos($file, DOMPDF_CHROOT) !== 0 ) {
      throw new DOMPDF_Exception("Permission denied on $file. The file could not be found under the directory specified by DOMPDF_CHROOT.");
    }
  }
  
  if($file_parts['protocol'] === 'php://') {
    throw new DOMPDF_Exception("Permission denied on $file. This script does not allow PHP streams.");
  }
  
  $outfile = "dompdf_out.pdf"; # Don't allow them to set the output file
  $save_file = false; # Don't save the file
  
  break;
}

$dompdf = new DOMPDF();

if ( $file === "-" ) {
  $str = "";
  while ( !feof(STDIN) )
    $str .= fread(STDIN, 4096);

$dompdf->load_html($str);

} else
  $dompdf->load_html_file($file);

if ( isset($base_path) ) {
  $dompdf->set_base_path($base_path);
}

$dompdf->set_paper($paper, $orientation);

$dompdf->render();

if ( $_dompdf_show_warnings ) {
  global $_dompdf_warnings;
  foreach ($_dompdf_warnings as $msg)
    echo $msg . "\n";
  echo $dompdf->get_canvas()->get_cpdf()->messages;
  flush();
}

if ( $save_file ) {
//   if ( !is_writable($outfile) )
//     throw new DOMPDF_Exception("'$outfile' is not writable.");
  if ( strtolower(DOMPDF_PDF_BACKEND) === "gd" )
    $outfile = str_replace(".pdf", ".png", $outfile);

list($proto, $host, $path, $file) = explode_url($outfile);
  if ( $proto != "" ) // i.e. not file://
    $outfile = $file; // just save it locally, FIXME? could save it like wget: ./host/basepath/file

$outfile = realpath(dirname($outfile)) . DIRECTORY_SEPARATOR . basename($outfile);

if ( strpos($outfile, DOMPDF_CHROOT) !== 0 )
    throw new DOMPDF_Exception("Permission denied.");

file_put_contents($outfile, $dompdf->output( array("compress" => 0) ));
  exit(0);
}

if ( !headers_sent() ) {
  $dompdf->stream($outfile, $options);
}

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