ILIAS  release_5-4 Revision v5.4.26-12-gabc799a52e
Flexible.php
Go to the documentation of this file.
1 <?php
2 
9 {
17  protected function parseImplementation($var, $type, $allow_null)
18  {
19  if ($allow_null && $var === null) {
20  return null;
21  }
22  switch ($type) {
23  // Note: if code "breaks" from the switch, it triggers a generic
24  // exception to be thrown. Specific errors can be specifically
25  // done here.
26  case self::C_MIXED:
27  case self::ISTRING:
28  case self::C_STRING:
29  case self::TEXT:
30  case self::ITEXT:
31  return $var;
32  case self::C_INT:
33  if (is_string($var) && ctype_digit($var)) {
34  $var = (int)$var;
35  }
36  return $var;
37  case self::C_FLOAT:
38  if ((is_string($var) && is_numeric($var)) || is_int($var)) {
39  $var = (float)$var;
40  }
41  return $var;
42  case self::C_BOOL:
43  if (is_int($var) && ($var === 0 || $var === 1)) {
44  $var = (bool)$var;
45  } elseif (is_string($var)) {
46  if ($var == 'on' || $var == 'true' || $var == '1') {
47  $var = true;
48  } elseif ($var == 'off' || $var == 'false' || $var == '0') {
49  $var = false;
50  } else {
51  throw new HTMLPurifier_VarParserException("Unrecognized value '$var' for $type");
52  }
53  }
54  return $var;
55  case self::ALIST:
56  case self::HASH:
57  case self::LOOKUP:
58  if (is_string($var)) {
59  // special case: technically, this is an array with
60  // a single empty string item, but having an empty
61  // array is more intuitive
62  if ($var == '') {
63  return array();
64  }
65  if (strpos($var, "\n") === false && strpos($var, "\r") === false) {
66  // simplistic string to array method that only works
67  // for simple lists of tag names or alphanumeric characters
68  $var = explode(',', $var);
69  } else {
70  $var = preg_split('/(,|[\n\r]+)/', $var);
71  }
72  // remove spaces
73  foreach ($var as $i => $j) {
74  $var[$i] = trim($j);
75  }
76  if ($type === self::HASH) {
77  // key:value,key2:value2
78  $nvar = array();
79  foreach ($var as $keypair) {
80  $c = explode(':', $keypair, 2);
81  if (!isset($c[1])) {
82  continue;
83  }
84  $nvar[trim($c[0])] = trim($c[1]);
85  }
86  $var = $nvar;
87  }
88  }
89  if (!is_array($var)) {
90  break;
91  }
92  $keys = array_keys($var);
93  if ($keys === array_keys($keys)) {
94  if ($type == self::ALIST) {
95  return $var;
96  } elseif ($type == self::LOOKUP) {
97  $new = array();
98  foreach ($var as $key) {
99  $new[$key] = true;
100  }
101  return $new;
102  } else {
103  break;
104  }
105  }
106  if ($type === self::ALIST) {
107  trigger_error("Array list did not have consecutive integer indexes", E_USER_WARNING);
108  return array_values($var);
109  }
110  if ($type === self::LOOKUP) {
111  foreach ($var as $key => $value) {
112  if ($value !== true) {
113  trigger_error(
114  "Lookup array has non-true value at key '$key'; " .
115  "maybe your input array was not indexed numerically",
116  E_USER_WARNING
117  );
118  }
119  $var[$key] = true;
120  }
121  }
122  return $var;
123  default:
124  $this->errorInconsistent(__CLASS__, $type);
125  }
126  $this->errorGeneric($var, $type);
127  }
128 }
129 
130 // vim: et sw=4 sts=4
errorInconsistent($class, $type)
Throws an inconsistency exception.
Definition: VarParser.php:161
$type
Performs safe variable parsing based on types which can be used by users.
Definition: Flexible.php:8
Exception type for HTMLPurifier_VarParser.
$keys
errorGeneric($var, $type)
Generic error for if a type didn&#39;t work.
Definition: VarParser.php:174
Parses string representations into their corresponding native PHP variable type.
Definition: VarParser.php:7
$i
Definition: disco.tpl.php:19
parseImplementation($var, $type, $allow_null)
Definition: Flexible.php:17
$key
Definition: croninfo.php:18