errorstack.php

FP2 CRM code+Mysql DB

     * @param array  $repackage If this error re-packages an error pushed by
     *                          another package, place the array returned from
     *                          {@link pop()} in this parameter
     * @param array  $backtrace Protected parameter: use this to pass in the
     *                          {@link debug_backtrace()} that should be used
     *                          to find error context
     * @return PEAR_Error|array|Exception
     *                          if compatibility mode is on, a PEAR_Error is also
     *                          thrown.  If the class Exception exists, then one
     *                          is returned to allow code like:
     * <code>
     * throw ($stack->push(MY_ERROR_CODE, 'error', array('username' => 'grob')));
     * </code>
     * 
     * The errorData property of the exception class will be set to the array
     * that would normally be returned.  If a PEAR_Error is returned, the userinfo
     * property is set to the array
     * 
     * Otherwise, an array is returned in this format:
     * <code>
     * array(
     *    'code' => $code,
     *    'params' => $params,
     *    'package' => $this->_package,
     *    'level' => $level,
     *    'time' => time(),
     *    'context' => $context,
     *    'message' => $msg,
     * //['repackage' => $err] repackaged error array
     * );
     * </code>
     */
    function push($code, $level = 'error', $params = array(), $msg = false,
                  $repackage = false, $backtrace = false)
    {
        $context = false;
        // grab error context
        if ($this->_contextCallback) {
            if (!$backtrace) {
                $backtrace = debug_backtrace();
            }
            $context = call_user_func($this->_contextCallback, $code, $params, $backtrace);
        }
        
        // save error
        $time = explode(' ', microtime());
        $time = $time[1] + $time[0];
        $err = array(
                'code' => $code,
                'params' => $params,
                'package' => $this->_package,
                'level' => $level,
                'time' => $time,
                'context' => $context,
                'message' => $msg,
               );

        // set up the error message, if necessary
        if ($this->_msgCallback) {
            $msg = call_user_func_array($this->_msgCallback,
                                        array(&$this, $err));
            $err['message'] = $msg;
        }
        
        
        if ($repackage) {
            $err['repackage'] = $repackage;
        }
        $push = $log = true;
        $callback = $this->popCallback();
        if (is_callable($callback)) {
            $this->pushCallback($callback);
            switch(call_user_func($callback, $err)){
            	case PEAR_ERRORSTACK_IGNORE: 
            		return $err;
        		break;
            	case PEAR_ERRORSTACK_PUSH: 
            		$log = false;
        		break;
            	case PEAR_ERRORSTACK_LOG: 
            		$push = false;
        		break;
                // anything else returned has the same effect as pushandlog
            }
        } elseif (is_callable($GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'])) {
            switch(call_user_func($GLOBALS['_PEAR_ERRORSTACK_DEFAULT_CALLBACK'], $err)){
            	case PEAR_ERRORSTACK_IGNORE: 
            		return $err;
        		break;
            	case PEAR_ERRORSTACK_PUSH: 
            		$log = false;
        		break;
            	case PEAR_ERRORSTACK_LOG: 
            		$push = false;
        		break;
                // anything else returned has the same effect as pushandlog
            }
        }
        if ($push) {
            array_unshift($this->_errors, $err);
        }
        if ($log) {
            if ($this->_logger || $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER']) {
                $this->_log($err);
            }
        }
        if ($this->_compat && $push) {
            return $this->raiseError($msg, $code, null, null, $err);
        }
        if (class_exists($this->_exceptionClass)) {
            $exception = $this->_exceptionClass;
            $ret = new $exception($msg, $code);
            $ret->errorData = $err;
        }
        return $err;
    }
    
    /**
     * Static version of {@link push()}
     * 
     * @param string $package   Package name this error belongs to
     * @param int    $code      Package-specific error code
     * @param string $level     Error level.  This is NOT spell-checked
     * @param array  $params    associative array of error parameters
     * @param string $msg       Error message, or a portion of it if the message
     *                          is to be generated
     * @param array  $repackage If this error re-packages an error pushed by
     *                          another package, place the array returned from
     *                          {@link pop()} in this parameter
     * @param array  $backtrace Protected parameter: use this to pass in the
     *                          {@link debug_backtrace()} that should be used
     *                          to find error context
     * @return PEAR_Error|null|Exception
     *                          if compatibility mode is on, a PEAR_Error is also
     *                          thrown.  If the class Exception exists, then one
     *                          is returned to allow code like:
     * <code>
     * throw ($stack->push(MY_ERROR_CODE, 'error', array('username' => 'grob')));
     * </code>
     * @static
     */
    function staticPush($package, $code, $level = 'error', $params = array(),
                        $msg = false, $repackage = false, $backtrace = false)
    {
        $s = &PEAR_ErrorStack::singleton($package);
        if ($s->_contextCallback) {
            if (!$backtrace) {
                $backtrace = debug_backtrace();
            }
        }
        return $s->push($code, $level, $params, $msg, $repackage, $backtrace);
    }
    
    /**
     * Log an error using PEAR::Log
     * @param array $err Error array
     * @param array $levels Error level => Log constant map
     * @access protected
     */
    function _log($err, $levels = array(
                'exception' => PEAR_LOG_CRIT,
                'alert' => PEAR_LOG_ALERT,
                'critical' => PEAR_LOG_CRIT,
                'error' => PEAR_LOG_ERR,
                'warning' => PEAR_LOG_WARNING,
                'notice' => PEAR_LOG_NOTICE,
                'info' => PEAR_LOG_INFO,
                'debug' => PEAR_LOG_DEBUG))
    {
        if (isset($levels[$err['level']])) {
            $level = $levels[$err['level']];
        } else {
            $level = PEAR_LOG_INFO;
        }
        if ($this->_logger) {
            $this->_logger->log($err['message'], $level, $err);
        } else {
            $GLOBALS['_PEAR_ERRORSTACK_DEFAULT_LOGGER']->log($err['message'], $level, $err);
        }
    }

    
    /**
     * Pop an error off of the error stack
     * 
     * @return false|array
     * @since 0.4alpha it is no longer possible to specify a specific error
     * level to return - the last error pushed will be returned, instead
     */
    function pop()
    {
        return @array_shift($this->_errors);
    }
    
    /**
     * Determine whether there are any errors on the stack
     * @return boolean
     */
    function hasErrors()
    {
        return count($this->_errors);
    }
    
    /**
     * Retrieve all errors since last purge
     * 
     * @param boolean $purge set in order to empty the error stack
     * @return array
     */
    function getErrors($purge = false)
    {
        if (!$purge) {
            return $this->_errors;
        }
        $ret = $this->_errors;
        $this->_errors = array();
        return $ret;
    }
    
    /**
     * Determine whether there are any errors on any error stack
     * @return boolean
     * @static
     */
    function staticHasErrors()
    {
        foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) {
            if ($obj->hasErrors()) {
                return true;
            }
        }
        return false;
    }
    
    /**
     * Get a list of all errors since last purge, organized by package
     * @param boolean $clearStack Set to purge the error stack of existing errors
     * @param boolean $merge Set to return a flat array, not organized by package
     * @param array   $sortfunc Function used to sort a merged array - default
     *        sorts by time, and should be good for most cases
     * @static
     * @return array 
     */
    function staticGetErrors($purge = false, $merge = false, $sortfunc = array('PEAR_ErrorStack', '_sortErrors'))
    {
        $ret = array();
        if (!is_callable($sortfunc)) {
            $sortfunc = array('PEAR_ErrorStack', '_sortErrors');
        }
        foreach ($GLOBALS['_PEAR_ERRORSTACK_SINGLETON'] as $package => $obj) {
            $test = $GLOBALS['_PEAR_ERRORSTACK_SINGLETON'][$package]->getErrors($purge);
            if ($test) {
                if ($merge) {
                    $ret = array_merge($ret, $test);
                } else {
                    $ret[$package] = $test;
                }
            }
        }
        if ($merge) {
            usort($ret, $sortfunc);
        }
        return $ret;
    }
    
    /**
     * Error sorting function, sorts by time
     * @access private
     */
    function _sortErrors($a, $b)
    {
        if ($a['time'] == $b['time']) {
            return 0;
        }
        if ($a['time'] < $b['time']) {
            return 1;
        }
        return -1;
    }

    /**
     * Standard file/line number/function/class context callback
     *
     * This function uses a backtrace generated from {@link debug_backtrace()}
     * and so will not work at all in PHP < 4.3.0.  The frame should
     * reference the frame that contains the source of the error.
     * @return array|false either array('file' => file, 'line' => line,
     *         'function' => function name, 'class' => class name) or
     *         if this doesn't work, then false
     * @param array Results of debug_backtrace()
     * @param unused
     * @param integer backtrace frame.
     * @static
     */
    function getFileLine($code, $params, $backtrace = null)
    {
        if ($backtrace === null) {
            return false;
        }
        $frame = 0;
        $functionframe = 1;
        if (!isset($backtrace[1])) {
            $functionframe = 0;
        } else {
            while (isset($backtrace[$functionframe]['function']) &&
                  $backtrace[$functionframe]['function'] == 'eval' &&
                  isset($backtrace[$functionframe + 1])) {
                $functionframe++;
            }
        }
        if (isset($backtrace[$frame])) {
            if (!isset($backtrace[$frame]['file'])) {
                $frame++;
            }
            $funcbacktrace = $backtrace[$functionframe];
            $filebacktrace = $backtrace[$frame];
            $ret = array('file' => $filebacktrace['file'],
                         'line' => $filebacktrace['line']);
            // rearrange for eval'd code or create function errors
            if (strpos($filebacktrace['file'], '(') && 
            	  preg_match(';^(.*?)\((\d+)\) : (.*?)$;', $filebacktrace['file'],
                  $matches)) {
                $ret['file'] = $matches[1];
                $ret['line'] = $matches[2] + 0;
            }
            if (isset($funcbacktrace['function']) && isset($backtrace[1])) {
                if ($funcbacktrace['function'] != 'eval') {
                    if ($funcbacktrace['function'] == '__lambda_func') {
                        $ret['function'] = 'create_function() code';
                    } else {
                        $ret['function'] = $funcbacktrace['function'];
                    }
                }
            }
            if (isset($funcbacktrace['class']) && isset($backtrace[1])) {
                $ret['class'] = $funcbacktrace['class'];
            }
            return $ret;
        }
        return false;
    }
    
    /**
     * Standard error message generation callback
     * 
     * This method may also be called by a custom error message generator
     * to fill in template values from the params array, simply
     * set the third parameter to the error message template string to use
     * 
     * The special variable %__msg% is reserved: use it only to specify
     * where a message passed in by the user should be placed in the template,
     * like so:
     * 
     * Error message: %msg% - internal error
     * 
     * If the message passed like so:
     * 
     * <code>
     * $stack->push(ERROR_CODE, 'error', array(), 'server error 500');
     * </code>
     * 
     * The returned error message will be "Error message: server error 500 -
     * internal error"
     * @param PEAR_ErrorStack
     * @param array
     * @param string|false Pre-generated error message template
     * @static
     * @return string
     */
    function getErrorMessage(&$stack, $err, $template = false)
    {
        if ($template) {
            $mainmsg = $template;
        } else {
            $mainmsg = $stack->getErrorMessageTemplate($err['code']);
        }
        $mainmsg = str_replace('%__msg%', $err['message'], $mainmsg);
        if (count($err['params'])) {
            foreach ($err['params'] as $name => $val) {
                if (is_array($val)) {
                    $val = implode(', ', $val);
                }
                if (is_object($val)) {
                    if (method_exists($val, '__toString')) {
                        $val = $val->__toString();
                    } else {
                        PEAR_ErrorStack::staticPush('PEAR_ErrorStack', PEAR_ERRORSTACK_ERR_OBJTOSTRING,
                            'warning', array('obj' => get_class($val)),
                            'object %obj% passed into getErrorMessage, but has no __toString() method');
                        $val = 'Object';
                    }
                }
                $mainmsg = str_replace('%' . $name . '%', $val,  $mainmsg);
            }
        }
        return $mainmsg;
    }
    
    /**
     * Standard Error Message Template generator from code
     * @return string
     */
    function getErrorMessageTemplate($code)
    {
        if (!isset($this->_errorMsgs[$code])) {
            return '%__msg%';
        }
        return $this->_errorMsgs[$code];
    }
    
    /**
     * Set the Error Message Template array
     * 
     * The array format must be:
     * <pre>
     * array(error code => 'message template',...)
     * </pre>
     * 
     * Error message parameters passed into {@link push()} will be used as input
     * for the error message.  If the template is 'message %foo% was %bar%', and the
     * parameters are array('foo' => 'one', 'bar' => 'six'), the error message returned will
     * be 'message one was six'
     * @return string
     */
    function setErrorMessageTemplate($template)
    {
        $this->_errorMsgs = $template;
    }
    
    
    /**
     * emulate PEAR::raiseError()
     * 
     * @return PEAR_Error
     */
    function raiseError()
    {
        require_once 'PEAR.php';
        $args = func_get_args();
        return call_user_func_array(array('PEAR', 'raiseError'), $args);
    }
}
$stack = &PEAR_ErrorStack::singleton('PEAR_ErrorStack');
$stack->pushCallback(array('PEAR_ErrorStack', '_handleError'));
?>