<?php
define('PEAR_ERROR_RETURN', 1);
define('PEAR_ERROR_PRINT', 2);
define('PEAR_ERROR_TRIGGER', 4);
define('PEAR_ERROR_DIE', 8);
define('PEAR_ERROR_CALLBACK', 16);
define('PEAR_ERROR_EXCEPTION', 32);
if (substr(PHP_OS, 0, 3) == 'WIN') {
define('OS_WINDOWS', true);
define('OS_UNIX', false);
define('PEAR_OS', 'Windows');
} else {
define('OS_WINDOWS', false);
define('OS_UNIX', true);
define('PEAR_OS', 'Unix'); // blatant assumption
}
$GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN;
$GLOBALS['_PEAR_default_error_options'] = E_USER_NOTICE;
$GLOBALS['_PEAR_destructor_object_list'] = array();
$GLOBALS['_PEAR_shutdown_funcs'] = array();
$GLOBALS['_PEAR_error_handler_stack'] = array();
@ini_set('track_errors', true);
class PEAR {
var $_debug = false;
var $_default_error_mode = null;
var $_default_error_options = null;
var $_default_error_handler = '';
var $_error_class = 'PEAR_Error';
var $_expected_errors = array();
protected static $bivalentMethods = array(
'setErrorHandling' => true,
'raiseError' => true,
'throwError' => true,
'pushErrorHandling' => true,
'popErrorHandling' => true,
);
function __construct($error_class = null) {
$classname = strtolower(get_class($this));
if ($this->_debug) {
print "PEAR constructor called, class=$classname\n";
}
if ($error_class !== null) {
$this->_error_class = $error_class;
}
while ($classname && strcasecmp($classname, "pear")) {
$destructor = "_$classname";
if (method_exists($this, $destructor)) {
global $_PEAR_destructor_object_list;
$_PEAR_destructor_object_list[] = &$this;
if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) {
register_shutdown_function("_PEAR_call_destructors");
$GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true;
}
break;
} else {
$classname = get_parent_class($classname);
}
}
}
public function PEAR($error_class = null) {
self::__construct($error_class);
}
function _PEAR() {
if ($this->_debug) {
printf("PEAR destructor called, class=%s\n", strtolower(get_class($this)));
}
}
public function __call($method, $arguments) {
if (!isset(self::$bivalentMethods[$method])) {
trigger_error(
'Call to undefined method PEAR::' . $method . '()', E_USER_ERROR
);
}
return call_user_func_array(
array(get_class(), '_' . $method), array_merge(array($this), $arguments)
);
}
public static function __callStatic($method, $arguments) {
if (!isset(self::$bivalentMethods[$method])) {
trigger_error(
'Call to undefined method PEAR::' . $method . '()', E_USER_ERROR
);
}
return call_user_func_array(
array(get_class(), '_' . $method), array_merge(array(null), $arguments)
);
}
public static function &getStaticProperty($class, $var) {
static $properties;
if (!isset($properties[$class])) {
$properties[$class] = array();
}
if (!array_key_exists($var, $properties[$class])) {
$properties[$class][$var] = null;
}
return $properties[$class][$var];
}
public static function registerShutdownFunc($func, $args = array()) {
if (!isset($GLOBALS['_PEAR_SHUTDOWN_REGISTERED'])) {
register_shutdown_function("_PEAR_call_destructors");
$GLOBALS['_PEAR_SHUTDOWN_REGISTERED'] = true;
}
$GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args);
}
public static function isError($data, $code = null) {
if (!is_a($data, 'PEAR_Error')) {
return false;
}
if (is_null($code)) {
return true;
} elseif (is_string($code)) {
return $data->getMessage() == $code;
}
return $data->getCode() == $code;
}
protected static function _setErrorHandling(
$object, $mode = null, $options = null
) {
if ($object !== null) {
$setmode = &$object->_default_error_mode;
$setoptions = &$object->_default_error_options;
} else {
$setmode = &$GLOBALS['_PEAR_default_error_mode'];
$setoptions = &$GLOBALS['_PEAR_default_error_options'];
}
switch ($mode) {
case PEAR_ERROR_EXCEPTION:
case PEAR_ERROR_RETURN:
case PEAR_ERROR_PRINT:
case PEAR_ERROR_TRIGGER:
case PEAR_ERROR_DIE:
case null:
$setmode = $mode;
$setoptions = $options;
break;
case PEAR_ERROR_CALLBACK:
$setmode = $mode;
if (is_callable($options)) {
$setoptions = $options;
} else {
trigger_error("invalid error callback", E_USER_WARNING);
}
break;
default:
trigger_error("invalid error mode", E_USER_WARNING);
break;
}
}
function expectError($code = '*') {
if (is_array($code)) {
array_push($this->_expected_errors, $code);
} else {
array_push($this->_expected_errors, array($code));
}
return count($this->_expected_errors);
}
function popExpect() {
return array_pop($this->_expected_errors);
}
function _checkDelExpect($error_code) {
$deleted = false;
foreach ($this->_expected_errors as $key => $error_array) {
if (in_array($error_code, $error_array)) {
unset($this->_expected_errors[$key][array_search($error_code, $error_array)]);
$deleted = true;
}
if (0 == count($this->_expected_errors[$key])) {
unset($this->_expected_errors[$key]);
}
}
return $deleted;
}
function delExpect($error_code) {
$deleted = false;
if ((is_array($error_code) && (0 != count($error_code)))) {
foreach ($error_code as $key => $error) {
$deleted = $this->_checkDelExpect($error) ? true : false;
}
return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
} elseif (!empty($error_code)) {
if ($this->_checkDelExpect($error_code)) {
return true;
}
return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
}
return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME
}
protected static function _raiseError($object, $message = null, $code = null, $mode = null, $options = null, $userinfo = null, $error_class = null, $skipmsg = false) {
// The error is yet a PEAR error object
if (is_object($message)) {
$code = $message->getCode();
$userinfo = $message->getUserInfo();
$error_class = $message->getType();
$message->error_message_prefix = '';
$message = $message->getMessage();
}
if (
$object !== null &&
isset($object->_expected_errors) &&
count($object->_expected_errors) > 0 &&
count($exp = end($object->_expected_errors))
) {
if ($exp[0] == "*" ||
(is_int(reset($exp)) && in_array($code, $exp)) ||
(is_string(reset($exp)) && in_array($message, $exp))
) {
$mode = PEAR_ERROR_RETURN;
}
}
if ($mode === null) {
if ($object !== null && isset($object->_default_error_mode)) {
$mode = $object->_default_error_mode;
$options = $object->_default_error_options;
} elseif (isset($GLOBALS['_PEAR_default_error_mode'])) {
$mode = $GLOBALS['_PEAR_default_error_mode'];
$options = $GLOBALS['_PEAR_default_error_options'];
}
}
if ($error_class !== null) {
$ec = $error_class;
} elseif ($object !== null && isset($object->_error_class)) {
$ec = $object->_error_class;
} else {
$ec = 'PEAR_Error';
}
if ($skipmsg) {
$a = new $ec($code, $mode, $options, $userinfo);
} else {
$a = new $ec($message, $code, $mode, $options, $userinfo);
}
return $a;
}
protected static function _throwError($object, $message = null, $code = null, $userinfo = null) {
if ($object !== null) {
$a = &$object->raiseError($message, $code, null, null, $userinfo);
return $a;
}
$a = &PEAR::raiseError($message, $code, null, null, $userinfo);
return $a;
}
public static function staticPushErrorHandling($mode, $options = null) {
$stack = &$GLOBALS['_PEAR_error_handler_stack'];
$def_mode = &$GLOBALS['_PEAR_default_error_mode'];
$def_options = &$GLOBALS['_PEAR_default_error_options'];
$stack[] = array($def_mode, $def_options);
switch ($mode) {
case PEAR_ERROR_EXCEPTION:
case PEAR_ERROR_RETURN:
case PEAR_ERROR_PRINT:
case PEAR_ERROR_TRIGGER:
case PEAR_ERROR_DIE:
case null:
$def_mode = $mode;
$def_options = $options;
break;
case PEAR_ERROR_CALLBACK:
$def_mode = $mode;
if (is_callable($options)) {
$def_options = $options;
} else {
trigger_error("invalid error callback", E_USER_WARNING);
}
break;
default:
trigger_error("invalid error mode", E_USER_WARNING);
break;
}
$stack[] = array($mode, $options);
return true;
}
public static function staticPopErrorHandling() {
$stack = &$GLOBALS['_PEAR_error_handler_stack'];
$setmode = &$GLOBALS['_PEAR_default_error_mode'];
$setoptions = &$GLOBALS['_PEAR_default_error_options'];
array_pop($stack);
list($mode, $options) = $stack[sizeof($stack) - 1];
array_pop($stack);
switch ($mode) {
case PEAR_ERROR_EXCEPTION:
case PEAR_ERROR_RETURN:
case PEAR_ERROR_PRINT:
case PEAR_ERROR_TRIGGER:
case PEAR_ERROR_DIE:
case null:
$setmode = $mode;
$setoptions = $options;
break;
case PEAR_ERROR_CALLBACK:
$setmode = $mode;
// class/object method callback
if (is_callable($options)) {
$setoptions = $options;
} else {
trigger_error("invalid error callback", E_USER_WARNING);
}
break;
default:
trigger_error("invalid error mode", E_USER_WARNING);
break;
}
return true;
}
protected static function _pushErrorHandling($object, $mode, $options = null) {
$stack = &$GLOBALS['_PEAR_error_handler_stack'];
if ($object !== null) {
$def_mode = &$object->_default_error_mode;
$def_options = &$object->_default_error_options;
} else {
$def_mode = &$GLOBALS['_PEAR_default_error_mode'];
$def_options = &$GLOBALS['_PEAR_default_error_options'];
}
$stack[] = array($def_mode, $def_options);
if ($object !== null) {
$object->setErrorHandling($mode, $options);
} else {
PEAR::setErrorHandling($mode, $options);
}
$stack[] = array($mode, $options);
return true;
}
protected static function _popErrorHandling($object) {
$stack = &$GLOBALS['_PEAR_error_handler_stack'];
array_pop($stack);
list($mode, $options) = $stack[sizeof($stack) - 1];
array_pop($stack);
if ($object !== null) {
$object->setErrorHandling($mode, $options);
} else {
PEAR::setErrorHandling($mode, $options);
}
return true;
}
public static function loadExtension($ext) {
if (extension_loaded($ext)) {
return true;
}
if (
function_exists('dl') === false ||
ini_get('enable_dl') != 1
) {
return false;
}
if (OS_WINDOWS) {
$suffix = '.dll';
} elseif (PHP_OS == 'HP-UX') {
$suffix = '.sl';
} elseif (PHP_OS == 'AIX') {
$suffix = '.a';
} elseif (PHP_OS == 'OSX') {
$suffix = '.bundle';
} else {
$suffix = '.so';
}
return @dl('php_' . $ext . $suffix) || @dl($ext . $suffix);
}
}
function _PEAR_call_destructors() {
global $_PEAR_destructor_object_list;
if (is_array($_PEAR_destructor_object_list) &&
sizeof($_PEAR_destructor_object_list)) {
reset($_PEAR_destructor_object_list);
$destructLifoExists = PEAR::getStaticProperty('PEAR', 'destructlifo');
if ($destructLifoExists) {
$_PEAR_destructor_object_list = array_reverse($_PEAR_destructor_object_list);
}
while (list($k, $objref) = each($_PEAR_destructor_object_list)) {
$classname = get_class($objref);
while ($classname) {
$destructor = "_$classname";
if (method_exists($objref, $destructor)) {
$objref->$destructor();
break;
} else {
$classname = get_parent_class($classname);
}
}
}
$_PEAR_destructor_object_list = array();
}
if (
isset($GLOBALS['_PEAR_shutdown_funcs']) &&
is_array($GLOBALS['_PEAR_shutdown_funcs']) &&
!empty($GLOBALS['_PEAR_shutdown_funcs'])
) {
foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) {
call_user_func_array($value[0], $value[1]);
}
}
}
class PEAR_Error {
var $error_message_prefix = '';
var $mode = PEAR_ERROR_RETURN;
var $level = E_USER_NOTICE;
var $code = -1;
var $message = '';
var $userinfo = '';
var $backtrace = null;
function __construct($message = 'unknown error', $code = null, $mode = null, $options = null, $userinfo = null) {
if ($mode === null) {
$mode = PEAR_ERROR_RETURN;
}
$this->message = $message;
$this->code = $code;
$this->mode = $mode;
$this->userinfo = $userinfo;
$skiptrace = PEAR::getStaticProperty('PEAR_Error', 'skiptrace');
if (!$skiptrace) {
$this->backtrace = debug_backtrace();
if (isset($this->backtrace[0]) && isset($this->backtrace[0]['object'])) {
unset($this->backtrace[0]['object']);
}
}
if ($mode & PEAR_ERROR_CALLBACK) {
$this->level = E_USER_NOTICE;
$this->callback = $options;
} else {
if ($options === null) {
$options = E_USER_NOTICE;
}
$this->level = $options;
$this->callback = null;
}
if ($this->mode & PEAR_ERROR_PRINT) {
if (is_null($options) || is_int($options)) {
$format = "%s";
} else {
$format = $options;
}
printf($format, $this->getMessage());
}
if ($this->mode & PEAR_ERROR_TRIGGER) {
trigger_error($this->getMessage(), $this->level);
}
if ($this->mode & PEAR_ERROR_DIE) {
$msg = $this->getMessage();
if (is_null($options) || is_int($options)) {
$format = "%s";
if (substr($msg, -1) != "\n") {
$msg .= "\n";
}
} else {
$format = $options;
}
die(sprintf($format, $msg));
}
if ($this->mode & PEAR_ERROR_CALLBACK && is_callable($this->callback)) {
call_user_func($this->callback, $this);
}
if ($this->mode & PEAR_ERROR_EXCEPTION) {
trigger_error("PEAR_ERROR_EXCEPTION is obsolete, use class PEAR_Exception for exceptions", E_USER_WARNING);
eval('$e = new Exception($this->message, $this->code);throw($e);');
}
}
public function PEAR_Error(
$message = 'unknown error', $code = null, $mode = null, $options = null, $userinfo = null
) {
self::__construct($message, $code, $mode, $options, $userinfo);
}
function getMode() {
return $this->mode;
}
function getCallback() {
return $this->callback;
}
function getMessage() {
return ($this->error_message_prefix . $this->message);
}
function getCode() {
return $this->code;
}
function getType() {
return get_class($this);
}
function getUserInfo() {
return $this->userinfo;
}
function getDebugInfo() {
return $this->getUserInfo();
}
function getBacktrace($frame = null) {
if (defined('PEAR_IGNORE_BACKTRACE')) {
return null;
}
if ($frame === null) {
return $this->backtrace;
}
return $this->backtrace[$frame];
}
function addUserInfo($info) {
if (empty($this->userinfo)) {
$this->userinfo = $info;
} else {
$this->userinfo .= " ** $info";
}
}
function __toString() {
return $this->getMessage();
}
function toString() {
$modes = array();
$levels = array(E_USER_NOTICE => 'notice',
E_USER_WARNING => 'warning',
E_USER_ERROR => 'error');
if ($this->mode & PEAR_ERROR_CALLBACK) {
if (is_array($this->callback)) {
$callback = (is_object($this->callback[0]) ?
strtolower(get_class($this->callback[0])) :
$this->callback[0]) . '::' .
$this->callback[1];
} else {
$callback = $this->callback;
}
return sprintf('[%s: message="%s" code=%d mode=callback ' .
'callback=%s prefix="%s" info="%s"]', strtolower(get_class($this)), $this->message, $this->code, $callback, $this->error_message_prefix, $this->userinfo);
}
if ($this->mode & PEAR_ERROR_PRINT) {
$modes[] = 'print';
}
if ($this->mode & PEAR_ERROR_TRIGGER) {
$modes[] = 'trigger';
}
if ($this->mode & PEAR_ERROR_DIE) {
$modes[] = 'die';
}
if ($this->mode & PEAR_ERROR_RETURN) {
$modes[] = 'return';
}
return sprintf('[%s: message="%s" code=%d mode=%s level=%s ' .
'prefix="%s" info="%s"]', strtolower(get_class($this)), $this->message, $this->code, implode("|", $modes), $levels[$this->level], $this->error_message_prefix, $this->userinfo);
}
}