9.5/_introspection_processor_8php_source.html

<?php

namespace ‪TYPO3\CMS\Core\Log\Processor;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Log\LogRecord;


class ‪IntrospectionProcessor extends ‪AbstractProcessor

{

    protected ‪$appendFullBackTrace = false;


    protected ‪$shiftBackTraceLevel = 0;


    private ‪$precedingBacktraceLine = '';


    private ‪$precedingBacktraceFile = '';


    public function ‪setShiftBackTraceLevel(‪$shiftBackTraceLevel)

    {

        $this->shiftBackTraceLevel = (int)‪$shiftBackTraceLevel;

        return $this;

    }


    public function ‪setAppendFullBackTrace(‪$appendFullBackTrace)

    {

        $this->appendFullBackTrace = (bool)‪$appendFullBackTrace;

        return $this;

    }


    public function ‪processLogRecord(‪LogRecord $logRecord)

    {

        $trace = $this->‪getDebugBacktrace();


        // skip TYPO3\CMS\Core\Log classes

        foreach ($trace as $traceEntry) {

            if (isset($traceEntry['class']) && false !== strpos($traceEntry['class'], 'TYPO3\\CMS\\Core\\Log')) {

                $trace = $this->‪shiftBacktraceLevel($trace);

            } else {

                break;

            }

        }


        // shift a given number of entries from the trace

        for ($i = 0; $i < ‪$this->shiftBackTraceLevel; $i++) {

            // shift only if afterwards there is at least one entry left after.

            if (count($trace) > 1) {

                $trace = $this->‪shiftBacktraceLevel($trace);

            }

        }


        if ($this->appendFullBackTrace) {

            // Add the line and file of the last entry that has these information

            // to the first backtrace entry if it does not have this information.

            // This is required in case we have shifted entries and the first entry

            // is now a call_user_func that does not contain the line and file information.

            if (!isset($trace[0]['line'])) {

                $trace[0] = ['line' => ‪$this->precedingBacktraceLine] + $trace[0];

            }

            if (!isset($trace[0]['file'])) {

                $trace[0] = ['file' => ‪$this->precedingBacktraceFile] + $trace[0];

            }


            $logRecord->‪addData([

                'backtrace' => $trace

            ]);

        } else {

            $logRecord->‪addData([

                'file' => $trace[0]['file'] ?? null,

                'line' => $trace[0]['line'] ?? null,

                'class' => $trace[0]['class'] ?? null,

                'function' => $trace[0]['function'] ?? null

            ]);

        }


        return $logRecord;

    }


    protected function ‪shiftBacktraceLevel(array $backtrace)

    {

        if (isset($backtrace[0]['file'])) {

            $this->precedingBacktraceFile = $backtrace[0]['file'];

        }

        if (isset($backtrace[0]['line'])) {

            $this->precedingBacktraceLine = $backtrace[0]['line'];

        }

        array_shift($backtrace);


        return $backtrace;

    }


    protected function ‪getDebugBacktrace()

    {

        return debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);

    }

}