View file down/pear.php

File size: 18.43Kb
<?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);

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');
} 

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);

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();

    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);
            } 
        } 
    } 

    function _PEAR()
    {
        if ($this->_debug) {
            printf("PEAR destructor called, class=%s\n", strtolower(get_class($this)));
        } 
    } 

    function &getStaticProperty($class, $var)
    {
        static $properties;
        return $properties[$class][$var];
    } 

    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);
    } 

    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;
    } 

    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 = $mode;
                if (is_callable($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($code));
        } 
        return sizeof($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 => $error) {
                if ($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)) {
            if ($this->_checkDelExpect($error_code)) {
                return true;
            } else {
                return PEAR::raiseError("The expected error you submitted does not exist"); // IMPROVE ME
            } 
        } else {
            return PEAR::raiseError("The expected error you submitted is empty"); // IMPROVE ME
        } 
    } 

    function &raiseError($message = null,
        $code = null,
        $mode = null,
        $options = null,
        $userinfo = null,
        $error_class = null,
        $skipmsg = false)
    {
        if (is_object($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))) {
                $mode = PEAR_ERROR_RETURN;
            } 
        } 
        if ($mode === null) {
            if (isset($this) && isset($this->_default_error_mode)) {
                $mode = $this->_default_error_mode;
                $options = $this->_default_error_options;
            } elseif (isset($GLOBALS['_PEAR_default_error_mode'])) {
                $mode = $GLOBALS['_PEAR_default_error_mode'];
                $options = $GLOBALS['_PEAR_default_error_options'];
            } 
        } 

        if ($error_class !== null) {
            $ec = $error_class;
        } elseif (isset($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;
        } 
    } 

    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 = $mode;
                if (is_callable($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 = $mode;
                if (is_callable($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;
    } 

    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;
    } 

    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;
    } 

    function loadExtension($ext)
    {
        if (!extension_loaded($ext)) {
            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;
    } 
} 

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);
                } 
            } 
        } 
        $_PEAR_destructor_object_list = array();
    } 

    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]);
        } 
    } 
} 

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 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);');
        } 
    } 

    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()
    {
        $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);
    } 
} 

?>