diff options
author | Scott Ullrich <sullrich@pfsense.org> | 2006-01-18 23:12:43 +0000 |
---|---|---|
committer | Scott Ullrich <sullrich@pfsense.org> | 2006-01-18 23:12:43 +0000 |
commit | 16b3777758de07938c6bff2db4ed7ff6288565e3 (patch) | |
tree | 3f47f491dedeba6a6e8936b2a0c571963edf243a /etc/inc/PEAR.inc | |
parent | b755666f89d68f4a8f5eb1cd4a90a2a463d90583 (diff) | |
download | pfsense-16b3777758de07938c6bff2db4ed7ff6288565e3.zip pfsense-16b3777758de07938c6bff2db4ed7ff6288565e3.tar.gz |
MFC
Diffstat (limited to 'etc/inc/PEAR.inc')
-rw-r--r-- | etc/inc/PEAR.inc | 2179 |
1 files changed, 1094 insertions, 1085 deletions
diff --git a/etc/inc/PEAR.inc b/etc/inc/PEAR.inc index 3da2def..1ba931e 100644 --- a/etc/inc/PEAR.inc +++ b/etc/inc/PEAR.inc @@ -1,1086 +1,1095 @@ -<?php
-/**
- * PEAR, the PHP Extension and Application Repository
- *
- * PEAR class and PEAR_Error class
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.0 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_0.txt. If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category pear
- * @package PEAR
- * @author Sterling Hughes <sterling@php.net>
- * @author Stig Bakken <ssb@php.net>
- * @author Tomas V.V.Cox <cox@idecnet.com>
- * @author Greg Beaver <cellog@php.net>
- * @copyright 1997-2005 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version CVS: $Id$
- * @link http://pear.php.net/package/PEAR
- * @since File available since Release 0.1
- */
-
-/**#@+
- * ERROR constants
- */
-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);
-/**
- * WARNING: obsolete
- * @deprecated
- */
-define('PEAR_ERROR_EXCEPTION', 32);
-/**#@-*/
-define('PEAR_ZE2', (function_exists('version_compare') &&
- version_compare(zend_version(), "2-dev", "ge")));
-
-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
-}
-
-// instant backwards compatibility
-if (!defined('PATH_SEPARATOR')) {
- if (OS_WINDOWS) {
- define('PATH_SEPARATOR', ';');
- } else {
- define('PATH_SEPARATOR', ':');
- }
-}
-
-$GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN;
-$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);
-
-/**
- * Base class for other PEAR classes. Provides rudimentary
- * emulation of destructors.
- *
- * If you want a destructor in your class, inherit PEAR and make a
- * destructor method called _yourclassname (same name as the
- * constructor, but with a "_" prefix). Also, in your constructor you
- * have to call the PEAR constructor: $this->PEAR();.
- * The destructor method will be called without parameters. Note that
- * at in some SAPI implementations (such as Apache), any output during
- * the request shutdown (in which destructors are called) seems to be
- * discarded. If you need to get any debug information from your
- * destructor, use error_log(), syslog() or something similar.
- *
- * IMPORTANT! To use the emulated destructors you need to create the
- * objects by reference: $obj =& new PEAR_child;
- *
- * @category pear
- * @package PEAR
- * @author Stig Bakken <ssb@php.net>
- * @author Tomas V.V. Cox <cox@idecnet.com>
- * @author Greg Beaver <cellog@php.net>
- * @copyright 1997-2005 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version Release: 1.4.0a8
- * @link http://pear.php.net/package/PEAR
- * @see PEAR_Error
- * @since Class available since PHP 4.0.2
- * @link http://pear.php.net/manual/en/core.pear.php#core.pear.pear
- */
-class PEAR
-{
- // {{{ properties
-
- /**
- * Whether to enable internal debug messages.
- *
- * @var bool
- * @access private
- */
- var $_debug = false;
-
- /**
- * Default error mode for this object.
- *
- * @var int
- * @access private
- */
- var $_default_error_mode = null;
-
- /**
- * Default error options used for this object when error mode
- * is PEAR_ERROR_TRIGGER.
- *
- * @var int
- * @access private
- */
- var $_default_error_options = null;
-
- /**
- * Default error handler (callback) for this object, if error mode is
- * PEAR_ERROR_CALLBACK.
- *
- * @var string
- * @access private
- */
- var $_default_error_handler = '';
-
- /**
- * Which class to use for error objects.
- *
- * @var string
- * @access private
- */
- var $_error_class = 'PEAR_Error';
-
- /**
- * An array of expected errors.
- *
- * @var array
- * @access private
- */
- var $_expected_errors = array();
-
- // }}}
-
- // {{{ constructor
-
- /**
- * Constructor. Registers this object in
- * $_PEAR_destructor_object_list for destructor emulation if a
- * destructor object exists.
- *
- * @param string $error_class (optional) which class to use for
- * error objects, defaults to PEAR_Error.
- * @access public
- * @return void
- */
- function PEAR($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);
- }
- }
- }
-
- // }}}
- // {{{ destructor
-
- /**
- * Destructor (the emulated type of...). Does nothing right now,
- * but is included for forward compatibility, so subclass
- * destructors should always call it.
- *
- * See the note in the class desciption about output from
- * destructors.
- *
- * @access public
- * @return void
- */
- function _PEAR() {
- if ($this->_debug) {
- printf("PEAR destructor called, class=%s\n", strtolower(get_class($this)));
- }
- }
-
- // }}}
- // {{{ getStaticProperty()
-
- /**
- * If you have a class that's mostly/entirely static, and you need static
- * properties, you can use this method to simulate them. Eg. in your method(s)
- * do this: $myVar = &PEAR::getStaticProperty('myclass', 'myVar');
- * You MUST use a reference, or they will not persist!
- *
- * @access public
- * @param string $class The calling classname, to prevent clashes
- * @param string $var The variable to retrieve.
- * @return mixed A reference to the variable. If not set it will be
- * auto initialised to NULL.
- */
- function &getStaticProperty($class, $var)
- {
- static $properties;
- return $properties[$class][$var];
- }
-
- // }}}
- // {{{ registerShutdownFunc()
-
- /**
- * Use this function to register a shutdown method for static
- * classes.
- *
- * @access public
- * @param mixed $func The function name (or array of class/method) to call
- * @param mixed $args The arguments to pass to the function
- * @return void
- */
- function registerShutdownFunc($func, $args = array())
- {
- $GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args);
- }
-
- // }}}
- // {{{ isError()
-
- /**
- * Tell whether a value is a PEAR error.
- *
- * @param mixed $data the value to test
- * @param int $code if $data is an error object, return true
- * only if $code is a string and
- * $obj->getMessage() == $code or
- * $code is an integer and $obj->getCode() == $code
- * @access public
- * @return bool true if parameter is an error
- */
- function isError($data, $code = null)
- {
- if (is_a($data, 'PEAR_Error')) {
- if (is_null($code)) {
- return true;
- } elseif (is_string($code)) {
- return $data->getMessage() == $code;
- } else {
- return $data->getCode() == $code;
- }
- }
- return false;
- }
-
- // }}}
- // {{{ setErrorHandling()
-
- /**
- * Sets how errors generated by this object should be handled.
- * Can be invoked both in objects and statically. If called
- * statically, setErrorHandling sets the default behaviour for all
- * PEAR objects. If called in an object, setErrorHandling sets
- * the default behaviour for that object.
- *
- * @param int $mode
- * One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
- * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE,
- * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION.
- *
- * @param mixed $options
- * When $mode is PEAR_ERROR_TRIGGER, this is the error level (one
- * of E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR).
- *
- * When $mode is PEAR_ERROR_CALLBACK, this parameter is expected
- * to be the callback function or method. A callback
- * function is a string with the name of the function, a
- * callback method is an array of two elements: the element
- * at index 0 is the object, and the element at index 1 is
- * the name of the method to call in the object.
- *
- * When $mode is PEAR_ERROR_PRINT or PEAR_ERROR_DIE, this is
- * a printf format string used when printing the error
- * message.
- *
- * @access public
- * @return void
- * @see PEAR_ERROR_RETURN
- * @see PEAR_ERROR_PRINT
- * @see PEAR_ERROR_TRIGGER
- * @see PEAR_ERROR_DIE
- * @see PEAR_ERROR_CALLBACK
- * @see PEAR_ERROR_EXCEPTION
- *
- * @since PHP 4.0.5
- */
-
- function setErrorHandling($mode = null, $options = null)
- {
- if (isset($this) && is_a($this, 'PEAR')) {
- $setmode = &$this->_default_error_mode;
- $setoptions = &$this->_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 = $mode;
- // class/object method callback
- if (is_callable($options)) {
- $setoptions = $options;
- } else {
- trigger_error("invalid error callback", E_USER_WARNING);
- }
- break;
-
- default:
- trigger_error("invalid error mode", E_USER_WARNING);
- break;
- }
- }
-
- // }}}
- // {{{ expectError()
-
- /**
- * This method is used to tell which errors you expect to get.
- * Expected errors are always returned with error mode
- * PEAR_ERROR_RETURN. Expected error codes are stored in a stack,
- * and this method pushes a new element onto it. The list of
- * expected errors are in effect until they are popped off the
- * stack with the popExpect() method.
- *
- * Note that this method can not be called statically
- *
- * @param mixed $code a single error code or an array of error codes to expect
- *
- * @return int the new depth of the "expected errors" stack
- * @access public
- */
- function expectError($code = '*')
- {
- if (is_array($code)) {
- array_push($this->_expected_errors, $code);
- } else {
- array_push($this->_expected_errors, array($code));
- }
- return sizeof($this->_expected_errors);
- }
-
- // }}}
- // {{{ popExpect()
-
- /**
- * This method pops one element off the expected error codes
- * stack.
- *
- * @return array the list of error codes that were popped
- */
- function popExpect()
- {
- return array_pop($this->_expected_errors);
- }
-
- // }}}
- // {{{ _checkDelExpect()
-
- /**
- * This method checks unsets an error code if available
- *
- * @param mixed error code
- * @return bool true if the error code was unset, false otherwise
- * @access private
- * @since PHP 4.3.0
- */
- function _checkDelExpect($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)]);
- $deleted = true;
- }
-
- // clean up empty arrays
- if (0 == count($this->_expected_errors[$key])) {
- unset($this->_expected_errors[$key]);
- }
- }
- return $deleted;
- }
-
- // }}}
- // {{{ delExpect()
-
- /**
- * This method deletes all occurences of the specified element from
- * the expected error codes stack.
- *
- * @param mixed $error_code error code that should be deleted
- * @return mixed list of error codes that were deleted or error
- * @access public
- * @since PHP 4.3.0
- */
- function delExpect($error_code)
- {
- $deleted = false;
-
- if ((is_array($error_code) && (0 != count($error_code)))) {
- // $error_code is a non-empty array here;
- // we walk through it trying to unset all
- // values
- foreach($error_code as $key => $error) {
- if ($this->_checkDelExpect($error)) {
- $deleted = true;
- } else {
- $deleted = false;
- }
- }
- return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
- } elseif (!empty($error_code)) {
- // $error_code comes alone, trying to unset it
- if ($this->_checkDelExpect($error_code)) {
- return true;
- } else {
- return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
- }
- } else {
- // $error_code is empty
- return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME
- }
- }
-
- // }}}
- // {{{ raiseError()
-
- /**
- * This method is a wrapper that returns an instance of the
- * configured error class with this object's default error
- * handling applied. If the $mode and $options parameters are not
- * specified, the object's defaults are used.
- *
- * @param mixed $message a text error message or a PEAR error object
- *
- * @param int $code a numeric error code (it is up to your class
- * to define these if you want to use codes)
- *
- * @param int $mode One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT,
- * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE,
- * PEAR_ERROR_CALLBACK, PEAR_ERROR_EXCEPTION.
- *
- * @param mixed $options If $mode is PEAR_ERROR_TRIGGER, this parameter
- * specifies the PHP-internal error level (one of
- * E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR).
- * If $mode is PEAR_ERROR_CALLBACK, this
- * parameter specifies the callback function or
- * method. In other error modes this parameter
- * is ignored.
- *
- * @param string $userinfo If you need to pass along for example debug
- * information, this parameter is meant for that.
- *
- * @param string $error_class The returned error object will be
- * instantiated from this class, if specified.
- *
- * @param bool $skipmsg If true, raiseError will only pass error codes,
- * the error message parameter will be dropped.
- *
- * @access public
- * @return object a PEAR error object
- * @see PEAR::setErrorHandling
- * @since PHP 4.0.5
- */
- function raiseError($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 = $message->getMessage();
- }
-
- if (isset($this) && isset($this->_expected_errors) && sizeof($this->_expected_errors) > 0 && sizeof($exp = end($this->_expected_errors))) {
- if ($exp[0] == "*" ||
- (is_int(reset($exp)) && in_array($code, $exp)) ||
- (is_string(reset($exp)) && in_array($message, $exp))) {
- $mode = PEAR_ERROR_RETURN;
- }
- }
- // No mode given, try global ones
- if ($mode === null) {
- // Class error handler
- if (isset($this) && isset($this->_default_error_mode)) {
- $mode = $this->_default_error_mode;
- $options = $this->_default_error_options;
- // Global error handler
- } elseif (isset($GLOBALS['_PEAR_default_error_mode'])) {
- $mode = $GLOBALS['_PEAR_default_error_mode'];
- $options = $GLOBALS['_PEAR_default_error_options'];
- }
- }
-
- if ($error_class !== null) {
- $ec = $error_class;
- } elseif (isset($this) && isset($this->_error_class)) {
- $ec = $this->_error_class;
- } else {
- $ec = 'PEAR_Error';
- }
- if ($skipmsg) {
- return new $ec($code, $mode, $options, $userinfo);
- } else {
- return new $ec($message, $code, $mode, $options, $userinfo);
- }
- }
-
- // }}}
- // {{{ throwError()
-
- /**
- * Simpler form of raiseError with fewer options. In most cases
- * message, code and userinfo are enough.
- *
- * @param string $message
- *
- */
- function throwError($message = null,
- $code = null,
- $userinfo = null)
- {
- if (isset($this) && is_a($this, 'PEAR')) {
- return $this->raiseError($message, $code, null, null, $userinfo);
- } else {
- return PEAR::raiseError($message, $code, null, null, $userinfo);
- }
- }
-
- // }}}
- function staticPushErrorHandling($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 = $mode;
- // class/object method callback
- if (is_callable($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;
- }
-
- 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;
- }
-
- // {{{ pushErrorHandling()
-
- /**
- * Push a new error handler on top of the error handler options stack. With this
- * you can easily override the actual error handler for some code and restore
- * it later with popErrorHandling.
- *
- * @param mixed $mode (same as setErrorHandling)
- * @param mixed $options (same as setErrorHandling)
- *
- * @return bool Always true
- *
- * @see PEAR::setErrorHandling
- */
- function pushErrorHandling($mode, $options = null)
- {
- $stack = &$GLOBALS['_PEAR_error_handler_stack'];
- if (isset($this) && is_a($this, 'PEAR')) {
- $def_mode = &$this->_default_error_mode;
- $def_options = &$this->_default_error_options;
- } else {
- $def_mode = &$GLOBALS['_PEAR_default_error_mode'];
- $def_options = &$GLOBALS['_PEAR_default_error_options'];
- }
- $stack[] = array($def_mode, $def_options);
-
- if (isset($this) && is_a($this, 'PEAR')) {
- $this->setErrorHandling($mode, $options);
- } else {
- PEAR::setErrorHandling($mode, $options);
- }
- $stack[] = array($mode, $options);
- return true;
- }
-
- // }}}
- // {{{ popErrorHandling()
-
- /**
- * Pop the last error handler used
- *
- * @return bool Always true
- *
- * @see PEAR::pushErrorHandling
- */
- function popErrorHandling()
- {
- $stack = &$GLOBALS['_PEAR_error_handler_stack'];
- array_pop($stack);
- list($mode, $options) = $stack[sizeof($stack) - 1];
- array_pop($stack);
- if (isset($this) && is_a($this, 'PEAR')) {
- $this->setErrorHandling($mode, $options);
- } else {
- PEAR::setErrorHandling($mode, $options);
- }
- return true;
- }
-
- // }}}
- // {{{ loadExtension()
-
- /**
- * OS independant PHP extension load. Remember to take care
- * on the correct extension name for case sensitive OSes.
- *
- * @param string $ext The extension name
- * @return bool Success or not on the dl() call
- */
- function loadExtension($ext)
- {
- if (!extension_loaded($ext)) {
- // if either returns true dl() will produce a FATAL error, stop that
- if ((ini_get('enable_dl') != 1) || (ini_get('safe_mode') == 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);
- }
- return true;
- }
-
- // }}}
-}
-
-// {{{ _PEAR_call_destructors()
-
-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);
- 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);
- }
- }
- }
- // Empty the object list to ensure that destructors are
- // not called more than once.
- $_PEAR_destructor_object_list = array();
- }
-
- // Now call the shutdown functions
- if (is_array($GLOBALS['_PEAR_shutdown_funcs']) AND !empty($GLOBALS['_PEAR_shutdown_funcs'])) {
- foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) {
- call_user_func_array($value[0], $value[1]);
- }
- }
-}
-
-// }}}
-/**
- * Standard PEAR error class for PHP 4
- *
- * This class is supserseded by {@link PEAR_Exception} in PHP 5
- *
- * @category pear
- * @package PEAR
- * @author Stig Bakken <ssb@php.net>
- * @author Tomas V.V. Cox <cox@idecnet.com>
- * @author Gregory Beaver <cellog@php.net>
- * @copyright 1997-2005 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version Release: 1.4.0a8
- * @link http://pear.php.net/manual/en/core.pear.pear-error.php
- * @see PEAR::raiseError(), PEAR::throwError()
- * @since Class available since PHP 4.0.2
- */
-class PEAR_Error
-{
- // {{{ properties
-
- var $error_message_prefix = '';
- var $mode = PEAR_ERROR_RETURN;
- var $level = E_USER_NOTICE;
- var $code = -1;
- var $message = '';
- var $userinfo = '';
- var $backtrace = null;
-
- // }}}
- // {{{ constructor
-
- /**
- * PEAR_Error constructor
- *
- * @param string $message message
- *
- * @param int $code (optional) error code
- *
- * @param int $mode (optional) error mode, one of: PEAR_ERROR_RETURN,
- * PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER,
- * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION
- *
- * @param mixed $options (optional) error level, _OR_ in the case of
- * PEAR_ERROR_CALLBACK, the callback function or object/method
- * tuple.
- *
- * @param string $userinfo (optional) additional user/debug info
- *
- * @access public
- *
- */
- function PEAR_Error($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;
- if (function_exists("debug_backtrace") && !defined('PEAR_IGNORE_BACKTRACE')) {
- $this->backtrace = debug_backtrace();
- }
- if ($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) {
- if (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_ErrorStack for exceptions", E_USER_WARNING);
- eval('$e = new Exception($this->message, $this->code);$e->PEAR_Error = $this;throw($e);');
- }
- }
-
- // }}}
- // {{{ getMode()
-
- /**
- * Get the error mode from an error object.
- *
- * @return int error mode
- * @access public
- */
- function getMode() {
- return $this->mode;
- }
-
- // }}}
- // {{{ getCallback()
-
- /**
- * Get the callback function/method from an error object.
- *
- * @return mixed callback function or object/method array
- * @access public
- */
- function getCallback() {
- return $this->callback;
- }
-
- // }}}
- // {{{ getMessage()
-
-
- /**
- * Get the error message from an error object.
- *
- * @return string full error message
- * @access public
- */
- function getMessage()
- {
- return ($this->error_message_prefix . $this->message);
- }
-
-
- // }}}
- // {{{ getCode()
-
- /**
- * Get error code from an error object
- *
- * @return int error code
- * @access public
- */
- function getCode()
- {
- return $this->code;
- }
-
- // }}}
- // {{{ getType()
-
- /**
- * Get the name of this error/exception.
- *
- * @return string error/exception name (type)
- * @access public
- */
- function getType()
- {
- return get_class($this);
- }
-
- // }}}
- // {{{ getUserInfo()
-
- /**
- * Get additional user-supplied information.
- *
- * @return string user-supplied information
- * @access public
- */
- function getUserInfo()
- {
- return $this->userinfo;
- }
-
- // }}}
- // {{{ getDebugInfo()
-
- /**
- * Get additional debug information supplied by the application.
- *
- * @return string debug information
- * @access public
- */
- function getDebugInfo()
- {
- return $this->getUserInfo();
- }
-
- // }}}
- // {{{ getBacktrace()
-
- /**
- * Get the call backtrace from where the error was generated.
- * Supported with PHP 4.3.0 or newer.
- *
- * @param int $frame (optional) what frame to fetch
- * @return array Backtrace, or NULL if not available.
- * @access public
- */
- function getBacktrace($frame = null)
- {
- if (defined('PEAR_IGNORE_BACKTRACE')) {
- return null;
- }
- if ($frame === null) {
- return $this->backtrace;
- }
- return $this->backtrace[$frame];
- }
-
- // }}}
- // {{{ addUserInfo()
-
- function addUserInfo($info)
- {
- if (empty($this->userinfo)) {
- $this->userinfo = $info;
- } else {
- $this->userinfo .= " ** $info";
- }
- }
-
- // }}}
- // {{{ toString()
-
- /**
- * Make a string representation of this object.
- *
- * @return string a string with an object summary
- * @access public
- */
- 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);
- }
-
- // }}}
-}
-
-/*
- * Local Variables:
- * mode: php
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- */
+<?php +/** + * PEAR, the PHP Extension and Application Repository + * + * PEAR class and PEAR_Error class + * + * PHP versions 4 and 5 + * + * LICENSE: This source file is subject to version 3.0 of the PHP license + * that is available through the world-wide-web at the following URI: + * http://www.php.net/license/3_0.txt. If you did not receive a copy of + * the PHP License and are unable to obtain it through the web, please + * send a note to license@php.net so we can mail you a copy immediately. + * + * @category pear + * @package PEAR + * @author Sterling Hughes <sterling@php.net> + * @author Stig Bakken <ssb@php.net> + * @author Tomas V.V.Cox <cox@idecnet.com> + * @author Greg Beaver <cellog@php.net> + * @copyright 1997-2006 The PHP Group + * @license http://www.php.net/license/3_0.txt PHP License 3.0 + * @version CVS: $Id$ + * @link http://pear.php.net/package/PEAR + * @since File available since Release 0.1 + */ + +/**#@+ + * ERROR constants + */ +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); +/** + * WARNING: obsolete + * @deprecated + */ +define('PEAR_ERROR_EXCEPTION', 32); +/**#@-*/ +define('PEAR_ZE2', (function_exists('version_compare') && + version_compare(zend_version(), "2-dev", "ge"))); + +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 +} + +// instant backwards compatibility +if (!defined('PATH_SEPARATOR')) { + if (OS_WINDOWS) { + define('PATH_SEPARATOR', ';'); + } else { + define('PATH_SEPARATOR', ':'); + } +} + +$GLOBALS['_PEAR_default_error_mode'] = PEAR_ERROR_RETURN; +$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); + +/** + * Base class for other PEAR classes. Provides rudimentary + * emulation of destructors. + * + * If you want a destructor in your class, inherit PEAR and make a + * destructor method called _yourclassname (same name as the + * constructor, but with a "_" prefix). Also, in your constructor you + * have to call the PEAR constructor: $this->PEAR();. + * The destructor method will be called without parameters. Note that + * at in some SAPI implementations (such as Apache), any output during + * the request shutdown (in which destructors are called) seems to be + * discarded. If you need to get any debug information from your + * destructor, use error_log(), syslog() or something similar. + * + * IMPORTANT! To use the emulated destructors you need to create the + * objects by reference: $obj =& new PEAR_child; + * + * @category pear + * @package PEAR + * @author Stig Bakken <ssb@php.net> + * @author Tomas V.V. Cox <cox@idecnet.com> + * @author Greg Beaver <cellog@php.net> + * @copyright 1997-2006 The PHP Group + * @license http://www.php.net/license/3_0.txt PHP License 3.0 + * @version Release: 1.4.6 + * @link http://pear.php.net/package/PEAR + * @see PEAR_Error + * @since Class available since PHP 4.0.2 + * @link http://pear.php.net/manual/en/core.pear.php#core.pear.pear + */ +class PEAR +{ + // {{{ properties + + /** + * Whether to enable internal debug messages. + * + * @var bool + * @access private + */ + var $_debug = false; + + /** + * Default error mode for this object. + * + * @var int + * @access private + */ + var $_default_error_mode = null; + + /** + * Default error options used for this object when error mode + * is PEAR_ERROR_TRIGGER. + * + * @var int + * @access private + */ + var $_default_error_options = null; + + /** + * Default error handler (callback) for this object, if error mode is + * PEAR_ERROR_CALLBACK. + * + * @var string + * @access private + */ + var $_default_error_handler = ''; + + /** + * Which class to use for error objects. + * + * @var string + * @access private + */ + var $_error_class = 'PEAR_Error'; + + /** + * An array of expected errors. + * + * @var array + * @access private + */ + var $_expected_errors = array(); + + // }}} + + // {{{ constructor + + /** + * Constructor. Registers this object in + * $_PEAR_destructor_object_list for destructor emulation if a + * destructor object exists. + * + * @param string $error_class (optional) which class to use for + * error objects, defaults to PEAR_Error. + * @access public + * @return void + */ + function PEAR($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); + } + } + } + + // }}} + // {{{ destructor + + /** + * Destructor (the emulated type of...). Does nothing right now, + * but is included for forward compatibility, so subclass + * destructors should always call it. + * + * See the note in the class desciption about output from + * destructors. + * + * @access public + * @return void + */ + function _PEAR() { + if ($this->_debug) { + printf("PEAR destructor called, class=%s\n", strtolower(get_class($this))); + } + } + + // }}} + // {{{ getStaticProperty() + + /** + * If you have a class that's mostly/entirely static, and you need static + * properties, you can use this method to simulate them. Eg. in your method(s) + * do this: $myVar = &PEAR::getStaticProperty('myclass', 'myVar'); + * You MUST use a reference, or they will not persist! + * + * @access public + * @param string $class The calling classname, to prevent clashes + * @param string $var The variable to retrieve. + * @return mixed A reference to the variable. If not set it will be + * auto initialised to NULL. + */ + function &getStaticProperty($class, $var) + { + static $properties; + return $properties[$class][$var]; + } + + // }}} + // {{{ registerShutdownFunc() + + /** + * Use this function to register a shutdown method for static + * classes. + * + * @access public + * @param mixed $func The function name (or array of class/method) to call + * @param mixed $args The arguments to pass to the function + * @return void + */ + function registerShutdownFunc($func, $args = array()) + { + $GLOBALS['_PEAR_shutdown_funcs'][] = array($func, $args); + } + + // }}} + // {{{ isError() + + /** + * Tell whether a value is a PEAR error. + * + * @param mixed $data the value to test + * @param int $code if $data is an error object, return true + * only if $code is a string and + * $obj->getMessage() == $code or + * $code is an integer and $obj->getCode() == $code + * @access public + * @return bool true if parameter is an error + */ + function isError($data, $code = null) + { + if (is_a($data, 'PEAR_Error')) { + if (is_null($code)) { + return true; + } elseif (is_string($code)) { + return $data->getMessage() == $code; + } else { + return $data->getCode() == $code; + } + } + return false; + } + + // }}} + // {{{ setErrorHandling() + + /** + * Sets how errors generated by this object should be handled. + * Can be invoked both in objects and statically. If called + * statically, setErrorHandling sets the default behaviour for all + * PEAR objects. If called in an object, setErrorHandling sets + * the default behaviour for that object. + * + * @param int $mode + * One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT, + * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE, + * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION. + * + * @param mixed $options + * When $mode is PEAR_ERROR_TRIGGER, this is the error level (one + * of E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR). + * + * When $mode is PEAR_ERROR_CALLBACK, this parameter is expected + * to be the callback function or method. A callback + * function is a string with the name of the function, a + * callback method is an array of two elements: the element + * at index 0 is the object, and the element at index 1 is + * the name of the method to call in the object. + * + * When $mode is PEAR_ERROR_PRINT or PEAR_ERROR_DIE, this is + * a printf format string used when printing the error + * message. + * + * @access public + * @return void + * @see PEAR_ERROR_RETURN + * @see PEAR_ERROR_PRINT + * @see PEAR_ERROR_TRIGGER + * @see PEAR_ERROR_DIE + * @see PEAR_ERROR_CALLBACK + * @see PEAR_ERROR_EXCEPTION + * + * @since PHP 4.0.5 + */ + + function setErrorHandling($mode = null, $options = null) + { + if (isset($this) && is_a($this, 'PEAR')) { + $setmode = &$this->_default_error_mode; + $setoptions = &$this->_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 = $mode; + // class/object method callback + if (is_callable($options)) { + $setoptions = $options; + } else { + trigger_error("invalid error callback", E_USER_WARNING); + } + break; + + default: + trigger_error("invalid error mode", E_USER_WARNING); + break; + } + } + + // }}} + // {{{ expectError() + + /** + * This method is used to tell which errors you expect to get. + * Expected errors are always returned with error mode + * PEAR_ERROR_RETURN. Expected error codes are stored in a stack, + * and this method pushes a new element onto it. The list of + * expected errors are in effect until they are popped off the + * stack with the popExpect() method. + * + * Note that this method can not be called statically + * + * @param mixed $code a single error code or an array of error codes to expect + * + * @return int the new depth of the "expected errors" stack + * @access public + */ + function expectError($code = '*') + { + if (is_array($code)) { + array_push($this->_expected_errors, $code); + } else { + array_push($this->_expected_errors, array($code)); + } + return sizeof($this->_expected_errors); + } + + // }}} + // {{{ popExpect() + + /** + * This method pops one element off the expected error codes + * stack. + * + * @return array the list of error codes that were popped + */ + function popExpect() + { + return array_pop($this->_expected_errors); + } + + // }}} + // {{{ _checkDelExpect() + + /** + * This method checks unsets an error code if available + * + * @param mixed error code + * @return bool true if the error code was unset, false otherwise + * @access private + * @since PHP 4.3.0 + */ + function _checkDelExpect($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)]); + $deleted = true; + } + + // clean up empty arrays + if (0 == count($this->_expected_errors[$key])) { + unset($this->_expected_errors[$key]); + } + } + return $deleted; + } + + // }}} + // {{{ delExpect() + + /** + * This method deletes all occurences of the specified element from + * the expected error codes stack. + * + * @param mixed $error_code error code that should be deleted + * @return mixed list of error codes that were deleted or error + * @access public + * @since PHP 4.3.0 + */ + function delExpect($error_code) + { + $deleted = false; + + if ((is_array($error_code) && (0 != count($error_code)))) { + // $error_code is a non-empty array here; + // we walk through it trying to unset all + // values + foreach($error_code as $key => $error) { + if ($this->_checkDelExpect($error)) { + $deleted = true; + } else { + $deleted = false; + } + } + return $deleted ? true : PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME + } elseif (!empty($error_code)) { + // $error_code comes alone, trying to unset it + if ($this->_checkDelExpect($error_code)) { + return true; + } else { + return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME + } + } else { + // $error_code is empty + return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME + } + } + + // }}} + // {{{ raiseError() + + /** + * This method is a wrapper that returns an instance of the + * configured error class with this object's default error + * handling applied. If the $mode and $options parameters are not + * specified, the object's defaults are used. + * + * @param mixed $message a text error message or a PEAR error object + * + * @param int $code a numeric error code (it is up to your class + * to define these if you want to use codes) + * + * @param int $mode One of PEAR_ERROR_RETURN, PEAR_ERROR_PRINT, + * PEAR_ERROR_TRIGGER, PEAR_ERROR_DIE, + * PEAR_ERROR_CALLBACK, PEAR_ERROR_EXCEPTION. + * + * @param mixed $options If $mode is PEAR_ERROR_TRIGGER, this parameter + * specifies the PHP-internal error level (one of + * E_USER_NOTICE, E_USER_WARNING or E_USER_ERROR). + * If $mode is PEAR_ERROR_CALLBACK, this + * parameter specifies the callback function or + * method. In other error modes this parameter + * is ignored. + * + * @param string $userinfo If you need to pass along for example debug + * information, this parameter is meant for that. + * + * @param string $error_class The returned error object will be + * instantiated from this class, if specified. + * + * @param bool $skipmsg If true, raiseError will only pass error codes, + * the error message parameter will be dropped. + * + * @access public + * @return object a PEAR error object + * @see PEAR::setErrorHandling + * @since PHP 4.0.5 + */ + function &raiseError($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 = $message->getMessage(); + } + + if (isset($this) && isset($this->_expected_errors) && sizeof($this->_expected_errors) > 0 && sizeof($exp = end($this->_expected_errors))) { + if ($exp[0] == "*" || + (is_int(reset($exp)) && in_array($code, $exp)) || + (is_string(reset($exp)) && in_array($message, $exp))) { + $mode = PEAR_ERROR_RETURN; + } + } + // No mode given, try global ones + if ($mode === null) { + // Class error handler + if (isset($this) && isset($this->_default_error_mode)) { + $mode = $this->_default_error_mode; + $options = $this->_default_error_options; + // Global error handler + } elseif (isset($GLOBALS['_PEAR_default_error_mode'])) { + $mode = $GLOBALS['_PEAR_default_error_mode']; + $options = $GLOBALS['_PEAR_default_error_options']; + } + } + + if ($error_class !== null) { + $ec = $error_class; + } elseif (isset($this) && isset($this->_error_class)) { + $ec = $this->_error_class; + } else { + $ec = 'PEAR_Error'; + } + if ($skipmsg) { + $a = &new $ec($code, $mode, $options, $userinfo); + return $a; + } else { + $a = &new $ec($message, $code, $mode, $options, $userinfo); + return $a; + } + } + + // }}} + // {{{ throwError() + + /** + * Simpler form of raiseError with fewer options. In most cases + * message, code and userinfo are enough. + * + * @param string $message + * + */ + function &throwError($message = null, + $code = null, + $userinfo = null) + { + if (isset($this) && is_a($this, 'PEAR')) { + $a = &$this->raiseError($message, $code, null, null, $userinfo); + return $a; + } else { + $a = &PEAR::raiseError($message, $code, null, null, $userinfo); + return $a; + } + } + + // }}} + function staticPushErrorHandling($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 = $mode; + // class/object method callback + if (is_callable($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; + } + + 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; + } + + // {{{ pushErrorHandling() + + /** + * Push a new error handler on top of the error handler options stack. With this + * you can easily override the actual error handler for some code and restore + * it later with popErrorHandling. + * + * @param mixed $mode (same as setErrorHandling) + * @param mixed $options (same as setErrorHandling) + * + * @return bool Always true + * + * @see PEAR::setErrorHandling + */ + function pushErrorHandling($mode, $options = null) + { + $stack = &$GLOBALS['_PEAR_error_handler_stack']; + if (isset($this) && is_a($this, 'PEAR')) { + $def_mode = &$this->_default_error_mode; + $def_options = &$this->_default_error_options; + } else { + $def_mode = &$GLOBALS['_PEAR_default_error_mode']; + $def_options = &$GLOBALS['_PEAR_default_error_options']; + } + $stack[] = array($def_mode, $def_options); + + if (isset($this) && is_a($this, 'PEAR')) { + $this->setErrorHandling($mode, $options); + } else { + PEAR::setErrorHandling($mode, $options); + } + $stack[] = array($mode, $options); + return true; + } + + // }}} + // {{{ popErrorHandling() + + /** + * Pop the last error handler used + * + * @return bool Always true + * + * @see PEAR::pushErrorHandling + */ + function popErrorHandling() + { + $stack = &$GLOBALS['_PEAR_error_handler_stack']; + array_pop($stack); + list($mode, $options) = $stack[sizeof($stack) - 1]; + array_pop($stack); + if (isset($this) && is_a($this, 'PEAR')) { + $this->setErrorHandling($mode, $options); + } else { + PEAR::setErrorHandling($mode, $options); + } + return true; + } + + // }}} + // {{{ loadExtension() + + /** + * OS independant PHP extension load. Remember to take care + * on the correct extension name for case sensitive OSes. + * + * @param string $ext The extension name + * @return bool Success or not on the dl() call + */ + function loadExtension($ext) + { + if (!extension_loaded($ext)) { + // if either returns true dl() will produce a FATAL error, stop that + if ((ini_get('enable_dl') != 1) || (ini_get('safe_mode') == 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); + } + return true; + } + + // }}} +} + +// {{{ _PEAR_call_destructors() + +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); + if (@PEAR::getStaticProperty('PEAR', 'destructlifo')) { + $_PEAR_destructor_object_list = array_reverse($_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); + } + } + } + // Empty the object list to ensure that destructors are + // not called more than once. + $_PEAR_destructor_object_list = array(); + } + + // Now call the shutdown functions + if (is_array($GLOBALS['_PEAR_shutdown_funcs']) AND !empty($GLOBALS['_PEAR_shutdown_funcs'])) { + foreach ($GLOBALS['_PEAR_shutdown_funcs'] as $value) { + call_user_func_array($value[0], $value[1]); + } + } +} + +// }}} +/** + * Standard PEAR error class for PHP 4 + * + * This class is supserseded by {@link PEAR_Exception} in PHP 5 + * + * @category pear + * @package PEAR + * @author Stig Bakken <ssb@php.net> + * @author Tomas V.V. Cox <cox@idecnet.com> + * @author Gregory Beaver <cellog@php.net> + * @copyright 1997-2006 The PHP Group + * @license http://www.php.net/license/3_0.txt PHP License 3.0 + * @version Release: 1.4.6 + * @link http://pear.php.net/manual/en/core.pear.pear-error.php + * @see PEAR::raiseError(), PEAR::throwError() + * @since Class available since PHP 4.0.2 + */ +class PEAR_Error +{ + // {{{ properties + + var $error_message_prefix = ''; + var $mode = PEAR_ERROR_RETURN; + var $level = E_USER_NOTICE; + var $code = -1; + var $message = ''; + var $userinfo = ''; + var $backtrace = null; + + // }}} + // {{{ constructor + + /** + * PEAR_Error constructor + * + * @param string $message message + * + * @param int $code (optional) error code + * + * @param int $mode (optional) error mode, one of: PEAR_ERROR_RETURN, + * PEAR_ERROR_PRINT, PEAR_ERROR_DIE, PEAR_ERROR_TRIGGER, + * PEAR_ERROR_CALLBACK or PEAR_ERROR_EXCEPTION + * + * @param mixed $options (optional) error level, _OR_ in the case of + * PEAR_ERROR_CALLBACK, the callback function or object/method + * tuple. + * + * @param string $userinfo (optional) additional user/debug info + * + * @access public + * + */ + function PEAR_Error($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; + if (function_exists("debug_backtrace")) { + if (@!PEAR::getStaticProperty('PEAR_Error', 'skiptrace')) { + $this->backtrace = debug_backtrace(); + } + } + if ($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) { + if (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);'); + } + } + + // }}} + // {{{ getMode() + + /** + * Get the error mode from an error object. + * + * @return int error mode + * @access public + */ + function getMode() { + return $this->mode; + } + + // }}} + // {{{ getCallback() + + /** + * Get the callback function/method from an error object. + * + * @return mixed callback function or object/method array + * @access public + */ + function getCallback() { + return $this->callback; + } + + // }}} + // {{{ getMessage() + + + /** + * Get the error message from an error object. + * + * @return string full error message + * @access public + */ + function getMessage() + { + return ($this->error_message_prefix . $this->message); + } + + + // }}} + // {{{ getCode() + + /** + * Get error code from an error object + * + * @return int error code + * @access public + */ + function getCode() + { + return $this->code; + } + + // }}} + // {{{ getType() + + /** + * Get the name of this error/exception. + * + * @return string error/exception name (type) + * @access public + */ + function getType() + { + return get_class($this); + } + + // }}} + // {{{ getUserInfo() + + /** + * Get additional user-supplied information. + * + * @return string user-supplied information + * @access public + */ + function getUserInfo() + { + return $this->userinfo; + } + + // }}} + // {{{ getDebugInfo() + + /** + * Get additional debug information supplied by the application. + * + * @return string debug information + * @access public + */ + function getDebugInfo() + { + return $this->getUserInfo(); + } + + // }}} + // {{{ getBacktrace() + + /** + * Get the call backtrace from where the error was generated. + * Supported with PHP 4.3.0 or newer. + * + * @param int $frame (optional) what frame to fetch + * @return array Backtrace, or NULL if not available. + * @access public + */ + function getBacktrace($frame = null) + { + if (defined('PEAR_IGNORE_BACKTRACE')) { + return null; + } + if ($frame === null) { + return $this->backtrace; + } + return $this->backtrace[$frame]; + } + + // }}} + // {{{ addUserInfo() + + function addUserInfo($info) + { + if (empty($this->userinfo)) { + $this->userinfo = $info; + } else { + $this->userinfo .= " ** $info"; + } + } + + // }}} + // {{{ toString() + + /** + * Make a string representation of this object. + * + * @return string a string with an object summary + * @access public + */ + 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); + } + + // }}} +} + +/* + * Local Variables: + * mode: php + * tab-width: 4 + * c-basic-offset: 4 + * End: + */ ?>
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