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AbstractHandler.php (2.61 KB)

AmqpHandler.php (4.95 KB)

BrowserConsoleHandler.php (9.02 KB)

ChromePHPHandler.php (4.79 KB)

CouchDBHandler.php (2.55 KB)

CubeHandler.php (5.31 KB)

Curl/

DeduplicationHandler.php (6.29 KB)

DoctrineCouchDBHandler.php (1.12 KB)

DynamoDbHandler.php (1.89 KB)

ElasticaHandler.php (3.66 KB)

ElasticsearchHandler.php (7.1 KB)

ErrorLogHandler.php (2.61 KB)

FilterHandler.php (6.92 KB)

FingersCrossed/

FingersCrossedHandler.php (7.99 KB)

FirePHPHandler.php (5.03 KB)

FleepHookHandler.php (3.44 KB)

FlowdockHandler.php (3.4 KB)

GelfHandler.php (1.42 KB)

GroupHandler.php (3.19 KB)

Handler.php (1015 B)

HandlerInterface.php (2.71 KB)

HandlerWrapper.php (3.28 KB)

IFTTTHandler.php (2.22 KB)

InsightOpsHandler.php (2.04 KB)

LogEntriesHandler.php (1.86 KB)

LogglyHandler.php (4.01 KB)

LogmaticHandler.php (2.57 KB)

MandrillHandler.php (2.48 KB)

NewRelicHandler.php (5.7 KB)

NoopHandler.php (908 B)

OverflowHandler.php (4.21 KB)

PsrHandler.php (2.41 KB)

RedisHandler.php (2.67 KB)

RollbarHandler.php (3.48 KB)

Slack/

SqsHandler.php (1.71 KB)

SymfonyMailerHandler.php (3.45 KB)

SyslogUdp/

SyslogUdpHandler.php (4.6 KB)

TestHandler.php (6.73 KB)

WebRequestRecognizerTrait.php (504 B)

ZendMonitorHandler.php (2.78 KB)

Edit: BrowserConsoleHandler.php

<?php declare(strict_types=1);

/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Monolog\Handler;

use Monolog\Formatter\FormatterInterface;
use Monolog\Formatter\LineFormatter;
use Monolog\Utils;
use Monolog\LogRecord;
use Monolog\Level;

use function headers_list;
use function stripos;

/**
 * Handler sending logs to browser's javascript console with no browser extension required
 *
 * @author Olivier Poitrey <rs@dailymotion.com>
 */
class BrowserConsoleHandler extends AbstractProcessingHandler
{
    protected static bool $initialized = false;

/** @var LogRecord[] */
    protected static array $records = [];

protected const FORMAT_HTML = 'html';
    protected const FORMAT_JS = 'js';
    protected const FORMAT_UNKNOWN = 'unknown';

/**
     * @inheritDoc
     *
     * Formatted output may contain some formatting markers to be transferred to `console.log` using the %c format.
     *
     * Example of formatted string:
     *
     *     You can do [[blue text]]{color: blue} or [[green background]]{background-color: green; color: white}
     */
    protected function getDefaultFormatter(): FormatterInterface
    {
        return new LineFormatter('[[%channel%]]{macro: autolabel} [[%level_name%]]{font-weight: bold} %message%');
    }

/**
     * @inheritDoc
     */
    protected function write(LogRecord $record): void
    {
        // Accumulate records
        static::$records[] = $record;

// Register shutdown handler if not already done
        if (!static::$initialized) {
            static::$initialized = true;
            $this->registerShutdownFunction();
        }
    }

/**
     * Convert records to javascript console commands and send it to the browser.
     * This method is automatically called on PHP shutdown if output is HTML or Javascript.
     */
    public static function send(): void
    {
        $format = static::getResponseFormat();
        if ($format === self::FORMAT_UNKNOWN) {
            return;
        }

if (\count(static::$records) > 0) {
            if ($format === self::FORMAT_HTML) {
                static::writeOutput('<script>' . self::generateScript() . '</script>');
            } else { // js format
                static::writeOutput(self::generateScript());
            }
            static::resetStatic();
        }
    }

public function close(): void
    {
        self::resetStatic();
    }

public function reset(): void
    {
        parent::reset();

self::resetStatic();
    }

/**
     * Forget all logged records
     */
    public static function resetStatic(): void
    {
        static::$records = [];
    }

/**
     * Wrapper for register_shutdown_function to allow overriding
     */
    protected function registerShutdownFunction(): void
    {
        if (PHP_SAPI !== 'cli') {
            register_shutdown_function(['Monolog\Handler\BrowserConsoleHandler', 'send']);
        }
    }

/**
     * Wrapper for echo to allow overriding
     */
    protected static function writeOutput(string $str): void
    {
        echo $str;
    }

/**
     * Checks the format of the response
     *
     * If Content-Type is set to application/javascript or text/javascript -> js
     * If Content-Type is set to text/html, or is unset -> html
     * If Content-Type is anything else -> unknown
     *
     * @return string One of 'js', 'html' or 'unknown'
     * @phpstan-return self::FORMAT_*
     */
    protected static function getResponseFormat(): string
    {
        // Check content type
        foreach (headers_list() as $header) {
            if (stripos($header, 'content-type:') === 0) {
                return static::getResponseFormatFromContentType($header);
            }
        }

return self::FORMAT_HTML;
    }

/**
     * @return string One of 'js', 'html' or 'unknown'
     * @phpstan-return self::FORMAT_*
     */
    protected static function getResponseFormatFromContentType(string $contentType): string
    {
        // This handler only works with HTML and javascript outputs
        // text/javascript is obsolete in favour of application/javascript, but still used
        if (stripos($contentType, 'application/javascript') !== false || stripos($contentType, 'text/javascript') !== false) {
            return self::FORMAT_JS;
        }

if (stripos($contentType, 'text/html') !== false) {
            return self::FORMAT_HTML;
        }

return self::FORMAT_UNKNOWN;
    }

private static function generateScript(): string
    {
        $script = [];
        foreach (static::$records as $record) {
            $context = self::dump('Context', $record->context);
            $extra = self::dump('Extra', $record->extra);

if (\count($context) === 0 && \count($extra) === 0) {
                $script[] = self::call_array(self::getConsoleMethodForLevel($record->level), self::handleStyles($record->formatted));
            } else {
                $script = array_merge(
                    $script,
                    [self::call_array('groupCollapsed', self::handleStyles($record->formatted))],
                    $context,
                    $extra,
                    [self::call('groupEnd')]
                );
            }
        }

return "(function (c) {if (c && c.groupCollapsed) {\n" . implode("\n", $script) . "\n}})(console);";
    }

private static function getConsoleMethodForLevel(Level $level): string
    {
        return match ($level) {
            Level::Debug => 'debug',
            Level::Info, Level::Notice => 'info',
            Level::Warning => 'warn',
            Level::Error, Level::Critical, Level::Alert, Level::Emergency => 'error',
        };
    }

/**
     * @return string[]
     */
    private static function handleStyles(string $formatted): array
    {
        $args = [];
        $format = '%c' . $formatted;
        preg_match_all('/\[\[(.*?)\]\]\{([^}]*)\}/s', $format, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);

foreach (array_reverse($matches) as $match) {
            $args[] = '"font-weight: normal"';
            $args[] = self::quote(self::handleCustomStyles($match[2][0], $match[1][0]));

$pos = $match[0][1];
            $format = Utils::substr($format, 0, $pos) . '%c' . $match[1][0] . '%c' . Utils::substr($format, $pos + \strlen($match[0][0]));
        }

$args[] = self::quote('font-weight: normal');
        $args[] = self::quote($format);

return array_reverse($args);
    }

private static function handleCustomStyles(string $style, string $string): string
    {
        static $colors = ['blue', 'green', 'red', 'magenta', 'orange', 'black', 'grey'];
        static $labels = [];

$style = preg_replace_callback('/macro\s*:(.*?)(?:;|$)/', function (array $m) use ($string, &$colors, &$labels) {
            if (trim($m[1]) === 'autolabel') {
                // Format the string as a label with consistent auto assigned background color
                if (!isset($labels[$string])) {
                    $labels[$string] = $colors[\count($labels) % \count($colors)];
                }
                $color = $labels[$string];

return "background-color: $color; color: white; border-radius: 3px; padding: 0 2px 0 2px";
            }

return $m[1];
        }, $style);

if (null === $style) {
            $pcreErrorCode = preg_last_error();

throw new \RuntimeException('Failed to run preg_replace_callback: ' . $pcreErrorCode . ' / ' . preg_last_error_msg());
        }

return $style;
    }

/**
     * @param  mixed[] $dict
     * @return mixed[]
     */
    private static function dump(string $title, array $dict): array
    {
        $script = [];
        $dict = array_filter($dict, fn ($value) => $value !== null);
        if (\count($dict) === 0) {
            return $script;
        }
        $script[] = self::call('log', self::quote('%c%s'), self::quote('font-weight: bold'), self::quote($title));
        foreach ($dict as $key => $value) {
            $value = json_encode($value);
            if (false === $value) {
                $value = self::quote('');
            }
            $script[] = self::call('log', self::quote('%s: %o'), self::quote((string) $key), $value);
        }

return $script;
    }

private static function quote(string $arg): string
    {
        return '"' . addcslashes($arg, "\"\n\\") . '"';
    }

/**
     * @param mixed $args
     */
    private static function call(...$args): string
    {
        $method = array_shift($args);
        if (!\is_string($method)) {
            throw new \UnexpectedValueException('Expected the first arg to be a string, got: '.var_export($method, true));
        }

return self::call_array($method, $args);
    }

/**
     * @param mixed[] $args
     */
    private static function call_array(string $method, array $args): string
    {
        return 'c.' . $method . '(' . implode(', ', $args) . ');';
    }
}