libraries/transformations/text_plain__external.inc.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * @package phpMyAdmin-Transformation
   5  * @version $Id$
   6  */
   7
   8 /**
   9  *
  10  */
  11 function PMA_transformation_text_plain__external_nowrap($options = array()) {
  12     if (!isset($options[3]) || $options[3] == '') {
  13         $nowrap = true;
  14     } elseif ($options[3] == '1' || $options[3] == 1) {
  15         $nowrap = true;
  16     } else {
  17         $nowrap = false;
  18     }
  19
  20     return $nowrap;
  21 }
  22
  23 function PMA_transformation_text_plain__external($buffer, $options = array(), $meta = '') {
  24     // possibly use a global transform and feed it with special options:
  25     // include './libraries/transformations/global.inc.php';
  26
  27     // further operations on $buffer using the $options[] array.
  28
  29     $allowed_programs = array();
  30
  31     //
  32     // WARNING:
  33     //
  34     // It's up to administrator to allow anything here. Note that users may
  35     // specify any parameters, so when programs allow output redirection or
  36     // any other possibly dangerous operations, you should write wrapper
  37     // script that will publish only functions you really want.
  38     //
  39     // Add here program definitions like (note that these are NOT safe
  40     // programs):
  41     //
  42     //$allowed_programs[0] = '/usr/local/bin/tidy';
  43     //$allowed_programs[1] = '/usr/local/bin/validate';
  44
  45     // no-op when no allowed programs
  46     if (count($allowed_programs) == 0) {
  47         return $buffer;
  48     }
  49
  50     if (!isset($options[0]) ||  $options[0] == '' || !isset($allowed_programs[$options[0]])) {
  51         $program = $allowed_programs[0];
  52     } else {
  53         $program = $allowed_programs[$options[0]];
  54     }
  55
  56     if (!isset($options[1]) || $options[1] == '') {
  57         $poptions = '-f /dev/null -i -wrap -q';
  58     } else {
  59         $poptions = $options[1];
  60     }
  61
  62     if (!isset($options[2]) || $options[2] == '') {
  63         $options[2] = 1;
  64     }
  65
  66     if (!isset($options[3]) || $options[3] == '') {
  67         $options[3] = 1;
  68     }
  69
  70     // needs PHP >= 4.3.0
  71     $newstring = '';
  72     $descriptorspec = array(
  73         0 => array("pipe", "r"),
  74         1 => array("pipe", "w")
  75     );
  76     $process = proc_open($program . ' ' . $poptions, $descriptorspec, $pipes);
  77     if (is_resource($process)) {
  78         fwrite($pipes[0], $buffer);
  79         fclose($pipes[0]);
  80
  81         while (!feof($pipes[1])) {
  82             $newstring .= fgets($pipes[1], 1024);
  83         }
  84         fclose($pipes[1]);
  85         // we don't currently use the return value
  86         $return_value = proc_close($process);
  87     }
  88
  89     if ($options[2] == 1 || $options[2] == '2') {
  90         $retstring = htmlspecialchars($newstring);
  91     } else {
  92         $retstring = $newstring;
  93     }
  94
  95     return $retstring;
  96 }
  97 ?>