/** * Decodes a JSON string * @see http://www.php.net/json_decode * @extracted from PEAR::Services_JSON */ static function json_decode($str) { $str = preg_replace(array('#^\\s*//(.+)$#m', '#^\\s*/\\*(.+)\\*/#Us', '#/\\*(.+)\\*/\\s*$#Us'), '', $str); $str = trim($str); switch (strtolower($str)) { case 'true': return true; case 'false': return false; case 'null': return null; default: $m = array(); if (is_numeric($str)) { return (double) $str == (int) $str ? (int) $str : (double) $str; } elseif (preg_match('/^("|\').*(\\1)$/s', $str, $m) && $m[1] == $m[2]) { $delim = substr($str, 0, 1); $chrs = substr($str, 1, -1); $utf8 = ''; $strlen_chrs = strlen($chrs); for ($c = 0; $c < $strlen_chrs; ++$c) { $substr_chrs_c_2 = substr($chrs, $c, 2); $ord_chrs_c = ord($chrs[$c]); switch (true) { case $substr_chrs_c_2 == '\\b': $utf8 .= chr(0x8); ++$c; break; case $substr_chrs_c_2 == '\\t': $utf8 .= chr(0x9); ++$c; break; case $substr_chrs_c_2 == '\\n': $utf8 .= chr(0xa); ++$c; break; case $substr_chrs_c_2 == '\\f': $utf8 .= chr(0xc); ++$c; break; case $substr_chrs_c_2 == '\\r': $utf8 .= chr(0xd); ++$c; break; case $substr_chrs_c_2 == '\\"': case $substr_chrs_c_2 == '\\\'': case $substr_chrs_c_2 == '\\\\': case $substr_chrs_c_2 == '\\/': if ($delim == '"' && $substr_chrs_c_2 != '\\\'' || $delim == "'" && $substr_chrs_c_2 != '\\"') { $utf8 .= $chrs[++$c]; } break; case preg_match('/\\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)): // single, escaped unicode character $utf16 = chr(hexdec(substr($chrs, $c + 2, 2))) . chr(hexdec(substr($chrs, $c + 4, 2))); $utf8 .= $this->utf162utf8($utf16); $c += 5; break; case $ord_chrs_c >= 0x20 && $ord_chrs_c <= 0x7f: $utf8 .= $chrs[$c]; break; case ($ord_chrs_c & 0xe0) == 0xc0: // characters U-00000080 - U-000007FF, mask 110XXXXX $utf8 .= substr($chrs, $c, 2); ++$c; break; case ($ord_chrs_c & 0xf0) == 0xe0: // characters U-00000800 - U-0000FFFF, mask 1110XXXX $utf8 .= substr($chrs, $c, 3); $c += 2; break; case ($ord_chrs_c & 0xf8) == 0xf0: // characters U-00010000 - U-001FFFFF, mask 11110XXX $utf8 .= substr($chrs, $c, 4); $c += 3; break; case ($ord_chrs_c & 0xfc) == 0xf8: // characters U-00200000 - U-03FFFFFF, mask 111110XX $utf8 .= substr($chrs, $c, 5); $c += 4; break; case ($ord_chrs_c & 0xfe) == 0xfc: // characters U-04000000 - U-7FFFFFFF, mask 1111110X $utf8 .= substr($chrs, $c, 6); $c += 5; break; } } return $utf8; } elseif (preg_match('/^\\[.*\\]$/s', $str) || preg_match('/^\\{.*\\}$/s', $str)) { if ($str[0] == '[') { $stk = array(3); $arr = array(); } else { $stk = array(4); $obj = array(); } array_push($stk, array('what' => 1, 'where' => 0, 'delim' => false)); $chrs = substr($str, 1, -1); $chrs = preg_replace(array('#^\\s*//(.+)$#m', '#^\\s*/\\*(.+)\\*/#Us', '#/\\*(.+)\\*/\\s*$#Us'), '', $chrs); $chrs = trim($chrs); if ($chrs == '') { if (reset($stk) == 3) { return $arr; } else { return $obj; } } $strlen_chrs = strlen($chrs); for ($c = 0; $c <= $strlen_chrs; ++$c) { $top = end($stk); $substr_chrs_c_2 = substr($chrs, $c, 2); if ($c == $strlen_chrs || $chrs[$c] == ',' && $top['what'] == 1) { $slice = substr($chrs, $top['where'], $c - $top['where']); array_push($stk, array('what' => 1, 'where' => $c + 1, 'delim' => false)); if (reset($stk) == 3) { array_push($arr, Jaws_UTF8::json_decode($slice)); } elseif (reset($stk) == 4) { $parts = array(); if (preg_match('/^\\s*(["\'].*[^\\\\]["\'])\\s*:\\s*(\\S.*),?$/Uis', $slice, $parts)) { $key = Jaws_UTF8::json_decode($parts[1]); $val = Jaws_UTF8::json_decode($parts[2]); $obj[$key] = $val; } elseif (preg_match('/^\\s*(\\w+)\\s*:\\s*(\\S.*),?$/Uis', $slice, $parts)) { $key = $parts[1]; $val = Jaws_UTF8::json_decode($parts[2]); $obj[$key] = $val; } } } elseif (($chrs[$c] == '"' || $chrs[$c] == "'") && $top['what'] != 2) { array_push($stk, array('what' => 2, 'where' => $c, 'delim' => $chrs[$c])); } elseif ($chrs[$c] == $top['delim'] && $top['what'] == 2 && (strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), '\\'))) % 2 != 1) { array_pop($stk); } elseif ($chrs[$c] == '[' && in_array($top['what'], array(1, 3, 4))) { array_push($stk, array('what' => 3, 'where' => $c, 'delim' => false)); } elseif ($chrs[$c] == ']' && $top['what'] == 3) { array_pop($stk); } elseif ($chrs[$c] == '{' && in_array($top['what'], array(1, 3, 4))) { array_push($stk, array('what' => 4, 'where' => $c, 'delim' => false)); } elseif ($chrs[$c] == '}' && $top['what'] == 4) { array_pop($stk); } elseif ($substr_chrs_c_2 == '/*' && in_array($top['what'], array(1, 3, 4))) { array_push($stk, array('what' => 5, 'where' => $c, 'delim' => false)); $c++; } elseif ($substr_chrs_c_2 == '*/' && $top['what'] == 5) { array_pop($stk); $c++; for ($i = $top['where']; $i <= $c; ++$i) { $chrs = substr_replace($chrs, ' ', $i, 1); } } } if (reset($stk) == 3) { return $arr; } elseif (reset($stk) == 4) { return $obj; } } } }
/** * Does the recursion on the data being fetched * * @access private * @param mixed $keys The key being fetched, it can be an array with multiple keys in it to fetch and * then an array will be returned accourdingly. * @param string $method Which super global is being fetched from * @param bool $filter Returns filtered data or not * @param bool $xss_strip Returns stripped html data tags/attributes * @param bool $json_decode Decode JSON data or not * @return mixed Null if there is no data else an string|array with the processed data */ private function _fetch($keys, $method = '', $filters = true, $xss_strip = false, $json_decode = false) { $method = empty($method) ? strtolower($_SERVER['REQUEST_METHOD']) : $method; if (is_array($keys)) { $result = array(); foreach ($keys as $key) { $k = strtok($key, ':'); $result[$k] = $this->_fetch($key, $method, $filters, $xss_strip, $json_decode); } return $result; } $key = strtok($keys, ':'); $type = strtok(':'); if (isset($this->data[$method][$key])) { $value = $json_decode ? Jaws_UTF8::json_decode($this->data[$method][$key]) : $this->data[$method][$key]; // try unserialize value if (false !== ($tvalue = @unserialize($value))) { $value = $tvalue; unset($tvalue); } // filter not allowed html tags/attributes if ($xss_strip) { $value = $this->strip_tags_attributes($value); } if ($filters === true) { $filters = $this->_filtersPriority; } elseif (!empty($filters)) { $filters = array('strip_null', $filters); } else { $filters = array('strip_null'); } if (is_array($value)) { array_walk_recursive($value, array(&$this, 'filter'), $filters); } else { $this->filter($value, $key, $filters); } return $this->func_type_check[$type]($value) ? $value : null; } return null; }