编辑文件 - xray-profiler-log.php

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<?php

/**
 * Copyright (с) Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2022 All Rights Reserved
 *
 * Licensed under CLOUD LINUX LICENSE AGREEMENT
 * https://www.cloudlinux.com/legal/
 */

namespace XrayProfiler;

if (!class_exists('\XrayProfiler\Log')) {
    class Log
    {
        /**
         * @var string
         */
        private $website = '';

/**
         * @var string
         */
        private $user = '';

/**
         * @var string
         */
        private $request_uri = '';

/**
         * @var int
         */
        private $http_code = 0;

/**
         * @var array<string>
         *
         * PHP Core Exceptions
         */
        public $core_exceptions = array(
            E_ERROR => 'E_ERROR',                         //1
            E_WARNING => 'E_WARNING',                     //2
            E_PARSE => 'E_PARSE',                         //4
            E_NOTICE => 'E_NOTICE',                       //8
            E_CORE_ERROR => 'E_CORE_ERROR',               //16
            E_CORE_WARNING => 'E_CORE_WARNING',           //32
            E_COMPILE_ERROR => 'E_COMPILE_ERROR',         //64
            E_COMPILE_WARNING => 'E_COMPILE_WARNING',     //128
            E_USER_ERROR => 'E_USER_ERROR',               //256
            E_USER_WARNING => 'E_USER_WARNING',           //512
            E_USER_NOTICE => 'E_USER_NOTICE',             //1024
            E_STRICT => 'E_STRICT',                       //2048
            E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR', //4096
            E_DEPRECATED => 'E_DEPRECATED',               //8192
            E_USER_DEPRECATED => 'E_USER_DEPRECATED',     //16384
            E_ALL => 'E_ALL',                             //32767
        );

/**
         * @var array<array<int|string|null>>
         */
        private $data = array();

/**
         * @var self|null
         */
        private static $instance = null;

private function __construct()
        {
        }

private function __clone()
        {
        }

/**
         * @return string
         */
        protected function wpHomeConstant()
        {
            if (defined('WP_HOME') && WP_HOME) {
                return (string)WP_HOME;
            }

return '';
        }

/**
         * @return string
         */
        protected function wpHomeOption()
        {
            if (function_exists('get_option')) {
                $home = get_option('home');
                if (is_string($home)) {
                    return $home;
                }
            }

return '';
        }

/**
         * @return string
         */
        public function website()
        {
            if (! empty($this->website)) {
                return $this->website;
            }

$wp_home_constant = $this->wpHomeConstant();
            $wp_home_option = $this->wpHomeOption();

if (! empty($wp_home_constant)) {
                $this->website = $wp_home_constant;
            } elseif (! empty($wp_home_option)) {
                $this->website = $wp_home_option;
            } elseif (is_array($_SERVER) && array_key_exists('SERVER_NAME', $_SERVER)) {
                $this->website = (string)$_SERVER['SERVER_NAME'];
            }

return $this->website;
        }

/**
         * @return string
         */
        public function user()
        {
            if (!empty($this->user)) {
                return $this->user;
            }

$parse = parse_url($this->website());
            if (is_array($parse) and array_key_exists('host', $parse)) {
                $this->user = $parse['host'];
            }

return $this->user;
        }

/**
         * @return string
         */
        public function requestUri()
        {
            if (! empty($this->request_uri)) {
                return $this->request_uri;
            }

if (is_array($_SERVER) && array_key_exists('REQUEST_URI', $_SERVER)) {
                /* keep path only; drop query/fragment - they may carry secrets:
                   tokens, signed-URL params, emails, API keys */
                $uri = (string)$_SERVER['REQUEST_URI'];
                $uri = explode('?', $uri, 2)[0];
                $this->request_uri = explode('#', $uri, 2)[0];
            }

return $this->request_uri;
        }

/**
         * @return int
         */
        public function httpCode()
        {
            if (! empty($this->http_code)) {
                return $this->http_code;
            }

if (function_exists('http_response_code')) {
                $this->http_code = (int)http_response_code();
            }

return $this->http_code;
        }

/**
         * @return self
         */
        public static function instance()
        {
            if (is_null(self::$instance)) {
                self::$instance = new self();
                self::$instance->clean();
            }

return self::$instance;
        }

/**
         * @return array
         */
        public function getData()
        {
            return $this->data;
        }

/**
         * @param int $errno
         * @param string $errstr
         * @param ?string $errfile
         * @param ?int $errline
         *
         * @return void
         */

public function setData($errno, $errstr, $errfile = null, $errline = null)
        {
            $this->data[] = array(
                'message' => $errstr,
                'type' => isset($this->core_exceptions[$errno])
                    ? $this->core_exceptions[$errno]
                    : 'Undefined: ' . $errno,
                'filename' => $errfile,
                'lineno' => $errline,
            );
        }

/**
         * @return string|bool
         */
        public function sendData()
        {
            $data = $this->prepareSentryData($this->data);
            if (empty($data)) {
                return false;
            }
            $sentry_response = $this->sendSentryData($data);
            if (!$sentry_response) {
                return false;
            }
            $this->clean();
            return $sentry_response;
        }

/**
         * @param array $data
         *
         * @return string|bool
         */
        private function prepareSentryData($data)
        {
            if (empty($data)) {
                return false;
            }
            $formatted = array();
            foreach ($data as $row) {
                $formatted[] = array(
                    "stacktrace" => array(
                        "frames" => array(
                            array(
                                // minimize: drop server path prefix so the OS username is not leaked
                                "filename" => $this->minimizePath($row["filename"]),
                                "lineno" => $row["lineno"],
                            )
                        ),
                        "frames_omitted" => null,
                    ),
                    "type" => $row['type'],
                    // minimize: scrub embedded absolute paths and cap length
                    "value" => $this->minimizeMessage($row['message']),
                );
            }

$xray_version = defined('XRAY_RELEASE') ? XRAY_RELEASE : null;

$sentry = array(
                "release" => $this->release($xray_version),
                "tags" => array(
                    "php_version" => phpversion(),
                    "xray_version" => $xray_version,
                ),
                "extra" => array(
                    'website' => $this->website(),
                    'request_uri' => $this->requestUri(),
                    'http_code' => $this->httpCode(),
                ),
                "user" => array(
                    "username" => $this->user(),
                ),
                "sentry.interfaces.Exception" => array(
                    "exc_omitted" => null,
                    "values" => $formatted,
                ),
            );

// Defence-in-depth against json_encode() returning false (which
            // would make sendData()'s empty() guard silently drop the whole
            // Sentry POST). On PHP 7.2+ this flag substitutes U+FFFD for any
            // malformed UTF-8 in the payload. On older runtimes the flag is
            // undefined so flags=0; there truncateUtf8() guarantees OUR
            // truncation never introduces malformed UTF-8, so the patch does no
            // harm. Note: a RAW error message already malformed before
            // truncation can still fail json_encode on PHP <7.2 — that is the
            // exact pre-patch behavior, pre-existing and out of scope here (not
            // a regression introduced by this fix).
            $flags = defined('JSON_INVALID_UTF8_SUBSTITUTE') ? JSON_INVALID_UTF8_SUBSTITUTE : 0;

return json_encode($sentry, $flags);
        }

/**
         * Reduce the server path used for the frame.filename field to the file
         * basename, and redact any leaf that is not a recognised source/asset
         * file to the literal token '<path>'. In practice frame.filename is
         * PHP's errfile, which is always the executing source/template script,
         * so its basename ends in a known code/template/asset extension (.php,
         * .phtml, .tpl, .twig, .js, .css, ...) and is kept (e.g. "index.php",
         * "loader.php", "style.css"). Any other leaf is redacted: a bare home
         * or vhost directory leaf is the account name — possibly a DOTTED OS
         * username (/home/john.doe) or a domain-named Plesk vhost
         * (/var/www/vhosts/example.com) — and does NOT end in a source
         * extension. Matching on a source/asset extension allowlist (rather
         * than the earlier "any dot means it's a file" test) closes the dotted
         * directory/username/domain leak that the dot heuristic missed, while
         * still keeping legitimate dotted source files. The OS username /
         * filesystem layout therefore never egresses regardless of layout.
         *
         * @param  string|null  $path
         *
         * @return string|null
         */
        private function minimizePath($path)
        {
            if (!is_string($path) || $path === '') {
                return $path;
            }

$normalized = trim(str_replace('\\', '/', $path), '/');
            if ($normalized === '') {
                return '<path>';
            }

$segments = explode('/', $normalized);
            $basename = end($segments);
            // Keep the basename only when it is plausibly a real source/asset
            // file (an errfile always is); otherwise it is a bare
            // directory/account leaf (dotless OR dotted username/domain) and
            // must be redacted.
            $source_ext_pattern = '/\.(php\d?|phtml|phps|inc|module|install'
                . '|engine|theme|profile|tpl|twig|html?|js|mjs|cjs|jsx|tsx?'
                . '|css|s[ac]ss|less|xml|ya?ml|json)$/i';
            if (
                $basename === ''
                || !preg_match($source_ext_pattern, $basename)
            ) {
                return '<path>';
            }

return $basename;
        }

/**
         * Minimize a raw PHP error message before it enters the payload: redact
         * any embedded absolute filesystem path to the literal token '<path>'
         * and cap the overall length. PHP error strings routinely embed server
         * paths, query fragments and runtime values that need not be disclosed
         * off-host. A constant '<path>' replacement (rather than retaining the
         * basename) ensures a message can never leak a username/domain/layout
         * regardless of where the path terminates — e.g. an open_basedir or
         * disk-quota error names a directory whose leaf segment is the account
         * name or vhost domain.
         *
         * @param  string|null  $message
         *
         * @return string|null
         */
        private function minimizeMessage($message)
        {
            if (!is_string($message) || $message === '') {
                return $message;
            }

// Bound the input BEFORE scrubbing: the path-scrub regex must never
            // run on a huge subject. A PHP error string can be tens of KB (E_ALL,
            // big traces, var_dumps); on the default pcre.jit=1 the path regex on
            // such a subject can trip the PCRE JIT stack limit, making
            // preg_replace return NULL. Capping first (UTF-8-safe) keeps the
            // regex subject tiny (<= ~1027 bytes) so that never happens; we
            // remember whether we cut, then scrub the small result and re-append
            // the '...' suffix afterwards.
            $max_length = 1024;
            $truncated = false;
            if (strlen($message) > $max_length) {
                $message = $this->truncateUtf8($message, $max_length);
                $truncated = true;
            }

// Redact absolute *nix paths to the literal token '<path>'. Two
            // alternatives:
            //   1. multi-segment (/a/b/c) matched anywhere, so a path embedded
            //      mid-token (e.g. "in/home/bob/x") is still redacted;
            //   2. single-segment (/home, /var) matched ONLY at a token boundary
            //      (start, whitespace or a delimiter -- the negative lookbehind
            //      rejects a preceding word char or '/'). The boundary guard is
            //      what keeps benign mid-word slashes like "and/or" or
            //      "read/write" intact, so we close the bare-directory leak
            //      (/home, /var in open_basedir / quota errors) without
            //      over-redacting ordinary prose.
            $scrubbed = preg_replace(
                '#/(?:[^\s/:"\']+/)+[^\s/:"\']+|(?<![\w/])/[^\s/:"\']+#',
                '<path>',
                $message
            );
            if (!is_string($scrubbed)) {
                // FAIL CLOSED: on any PCRE engine error never emit the raw
                // message (it could carry an unredacted absolute path); redact
                // the whole value instead.
                return '<redacted>';
            }

if ($truncated) {
                $scrubbed .= '...';
            }

return $scrubbed;
        }

/**
         * Truncate a string to at most $max BYTES without splitting a UTF-8
         * multibyte sequence. The output is always <= $max bytes and never ends
         * with a partial codepoint, so it is guaranteed valid UTF-8 (assuming
         * the input prefix was). Pure PHP with no mbstring/iconv dependency, so
         * it behaves identically on every supported runtime (PHP 5.4+), unlike
         * mb_strcut which silently degrades to a byte-wise substr when mbstring
         * is not loaded.
         *
         * @param  string  $s
         * @param  int     $max
         *
         * @return string
         */
        private function truncateUtf8($s, $max)
        {
            if (!is_string($s) || strlen($s) <= $max) {
                return $s;
            }
            $s = substr($s, 0, $max);
            $len = strlen($s);
            // Count trailing UTF-8 continuation bytes (10xxxxxx).
            $cont = 0;
            while ($cont < $len && (ord($s[$len - 1 - $cont]) & 0xC0) === 0x80) {
                $cont++;
            }
            if ($cont < $len) {
                $lead = ord($s[$len - 1 - $cont]);
                $expected = 1;
                if ($lead >= 0xF0) {
                    $expected = 4;
                } elseif ($lead >= 0xE0) {
                    $expected = 3;
                } elseif ($lead >= 0xC0) {
                    $expected = 2;
                }
                // If the final multibyte sequence is incomplete, drop it whole.
                if (($cont + 1) < $expected) {
                    $len = $len - 1 - $cont;
                }
            }
            return substr($s, 0, $len);
        }

/**
         * @param string|bool $data
         *
         * @return string|bool
         */
        private function sendSentryData($data)
        {
            if (!function_exists('curl_init') || empty($data)) {
                return false;
            }

$ch = curl_init();
            $sentry_key = '8e6821f19d214977ace88586bc8569fd';
            $url = 'https://cl.sentry.cloudlinux.com/api/23/store/';

curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json',
                'X-Sentry-Auth: Sentry sentry_version=7,sentry_timestamp=' . time()
                . ',sentry_client=php-curl/1.0,sentry_key=' . $sentry_key,
            ));
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            curl_setopt($ch, CURLOPT_TIMEOUT, 1);
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 1);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            $response = curl_exec($ch);
            curl_close($ch);

return $response;
        }

/**
         * @return void
         */
        public function clean()
        {
            $this->data = array();
            $this->website = '';
            $this->user = '';
            $this->request_uri = '';
            $this->http_code = 0;
        }

/**
         * Builds the Sentry release string based on X-Ray version.
         *
         * @param  string|null  $xray_version  X-Ray version from XRAY_RELEASE constant.
         *
         * @return string Sentry release string.
         *
         * @since 0.5-23
         */
        public function release($xray_version)
        {
            $version = 'dev';
            if (! empty($xray_version)) {
                preg_match('/\d+\.\d+(\.\d+)?-\d+/', $xray_version, $matches);
                if (! empty($matches)) {
                    $version = $matches[0];
                }
            }

return 'xray-php-profiler@' . $version;
        }
    }
}

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