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<?php
/**
* This file is part of the Tracy (https://tracy.nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare (strict_types=1);
namespace RectorPrefix202304\Tracy;
/**
* Red BlueScreen.
*/
class BlueScreen
{
private const MaxMessageLength = 2000;
/** @var string[] */
public $info = [];
/** @var string[] paths to be collapsed in stack trace (e.g. core libraries) */
public $collapsePaths = [];
/**
* @var int
*/
public $maxDepth = 5;
/**
* @var int
*/
public $maxLength = 150;
/**
* @var int
*/
public $maxItems = 100;
/** @var callable|null a callable returning true for sensitive data; fn(string $key, mixed $val): bool */
public $scrubber;
/** @var string[] */
public $keysToHide = ['password', 'passwd', 'pass', 'pwd', 'creditcard', 'credit card', 'cc', 'pin', 'authorization', self::class . '::$snapshot'];
/**
* @var bool
*/
public $showEnvironment = \true;
/** @var callable[] */
private $panels = [];
/** @var callable[] functions that returns action for exceptions */
private $actions = [];
/**
* @var mixed[]
*/
private $fileGenerators = [];
/**
* @var mixed[]|null
*/
private $snapshot;
/** @var \WeakMap<\Fiber|\Generator> */
private $fibers;
public function __construct()
{
$this->collapsePaths = \preg_match('#(.+/vendor)/tracy/tracy/src/Tracy/BlueScreen$#', \strtr(__DIR__, '\\', '/'), $m) ? [$m[1] . '/tracy', $m[1] . '/nette', $m[1] . '/latte'] : [\dirname(__DIR__)];
$this->fileGenerators[] = [self::class, 'generateNewPhpFileContents'];
$this->fibers = new \WeakMap();
}
/**
* Add custom panel as function (?\Throwable $e): ?array
* @return static
*/
public function addPanel(callable $panel) : self
{
if (!\in_array($panel, $this->panels, \true)) {
$this->panels[] = $panel;
}
return $this;
}
/**
* Add action.
* @return static
*/
public function addAction(callable $action) : self
{
$this->actions[] = $action;
return $this;
}
/**
* Add new file generator.
* @param callable(string): ?string $generator
* @return static
*/
public function addFileGenerator(callable $generator) : self
{
$this->fileGenerators[] = $generator;
return $this;
}
/**
* @param \Fiber|\Generator $fiber
* @return $this
*/
public function addFiber($fiber)
{
$this->fibers[$fiber] = \true;
return $this;
}
/**
* Renders blue screen.
*/
public function render(\Throwable $exception) : void
{
if (!\headers_sent()) {
\header('Content-Type: text/html; charset=UTF-8');
}
$this->renderTemplate($exception, __DIR__ . '/assets/page.phtml');
}
/** @internal */
public function renderToAjax(\Throwable $exception, DeferredContent $defer) : void
{
$defer->addSetup('Tracy.BlueScreen.loadAjax', Helpers::capture(function () use($exception) {
return $this->renderTemplate($exception, __DIR__ . '/assets/content.phtml');
}));
}
/**
* Renders blue screen to file (if file exists, it will not be overwritten).
*/
public function renderToFile(\Throwable $exception, string $file) : bool
{
if ($handle = @\fopen($file, 'x')) {
\ob_start();
// double buffer prevents sending HTTP headers in some PHP
\ob_start(function ($buffer) use($handle) : void {
\fwrite($handle, $buffer);
}, 4096);
$this->renderTemplate($exception, __DIR__ . '/assets/page.phtml', \false);
\ob_end_flush();
\ob_end_clean();
\fclose($handle);
return \true;
}
return \false;
}
private function renderTemplate(\Throwable $exception, string $template, bool $toScreen = \true) : void
{
[$generators, $fibers] = $this->findGeneratorsAndFibers($exception);
$headersSent = \headers_sent($headersFile, $headersLine);
$obStatus = Debugger::$obStatus;
$showEnvironment = $this->showEnvironment && \strpos($exception->getMessage(), 'Allowed memory size') === \false;
$info = \array_filter($this->info);
$source = Helpers::getSource();
$title = $exception instanceof \ErrorException ? Helpers::errorTypeToString($exception->getSeverity()) : \get_debug_type($exception);
$lastError = $exception instanceof \ErrorException || $exception instanceof \Error ? null : \error_get_last();
if (\function_exists('apache_request_headers')) {
$httpHeaders = \apache_request_headers();
} else {
$httpHeaders = \array_filter($_SERVER, function ($k) {
return \strncmp($k, 'HTTP_', 5) === 0;
}, \ARRAY_FILTER_USE_KEY);
$httpHeaders = \array_combine(\array_map(function ($k) {
return \strtolower(\strtr(\substr($k, 5), '_', '-'));
}, \array_keys($httpHeaders)), $httpHeaders);
}
$snapshot =& $this->snapshot;
$snapshot = [];
$dump = $this->getDumper();
$css = \array_map('file_get_contents', \array_merge([__DIR__ . '/../assets/reset.css', __DIR__ . '/assets/bluescreen.css', __DIR__ . '/../assets/toggle.css', __DIR__ . '/../assets/table-sort.css', __DIR__ . '/../assets/tabs.css', __DIR__ . '/../Dumper/assets/dumper-light.css'], Debugger::$customCssFiles));
$css = Helpers::minifyCss(\implode('', $css));
$nonce = $toScreen ? Helpers::getNonce() : null;
$actions = $toScreen ? $this->renderActions($exception) : [];
require $template;
}
/**
* @return \stdClass[]
*/
private function renderPanels(?\Throwable $ex) : array
{
$obLevel = \ob_get_level();
$res = [];
foreach ($this->panels as $callback) {
try {
$panel = $callback($ex);
if (empty($panel['tab']) || empty($panel['panel'])) {
continue;
}
$res[] = (object) $panel;
continue;
} catch (\Throwable $e) {
}
while (\ob_get_level() > $obLevel) {
// restore ob-level if broken
\ob_end_clean();
}
\is_callable($callback, \true, $name);
$res[] = (object) ['tab' => "Error in panel {$name}", 'panel' => \nl2br(Helpers::escapeHtml($e))];
}
return $res;
}
/**
* @return array[]
*/
private function renderActions(\Throwable $ex) : array
{
$actions = [];
foreach ($this->actions as $callback) {
$action = $callback($ex);
if (!empty($action['link']) && !empty($action['label'])) {
$actions[] = $action;
}
}
if (\property_exists($ex, 'tracyAction') && !empty($ex->tracyAction['link']) && !empty($ex->tracyAction['label'])) {
$actions[] = $ex->tracyAction;
}
if (\preg_match('# ([\'"])(\\w{3,}(?:\\\\\\w{3,})+)\\1#i', $ex->getMessage(), $m)) {
$class = $m[2];
if (!\class_exists($class, \false) && !\interface_exists($class, \false) && !\trait_exists($class, \false) && ($file = Helpers::guessClassFile($class)) && !\is_file($file)) {
[$content, $line] = $this->generateNewFileContents($file, $class);
$actions[] = ['link' => Helpers::editorUri($file, $line, 'create', '', $content), 'label' => 'create class'];
}
}
if (\preg_match('# ([\'"])((?:/|[a-z]:[/\\\\])\\w[^\'"]+\\.\\w{2,5})\\1#i', $ex->getMessage(), $m)) {
$file = $m[2];
if (\is_file($file)) {
$label = 'open';
$content = '';
$line = 1;
} else {
$label = 'create';
[$content, $line] = $this->generateNewFileContents($file);
}
$actions[] = ['link' => Helpers::editorUri($file, $line, $label, '', $content), 'label' => $label . ' file'];
}
$query = ($ex instanceof \ErrorException ? '' : \get_debug_type($ex) . ' ') . \preg_replace('#\'.*\'|".*"#Us', '', $ex->getMessage());
$actions[] = ['link' => 'https://www.google.com/search?sourceid=tracy&q=' . \urlencode($query), 'label' => 'search', 'external' => \true];
if ($ex instanceof \ErrorException && !empty($ex->skippable) && \preg_match('#^https?://#', $source = Helpers::getSource())) {
$actions[] = ['link' => $source . (\strpos($source, '?') ? '&' : '?') . '_tracy_skip_error', 'label' => 'skip error'];
}
return $actions;
}
/**
* Returns syntax highlighted source code.
*/
public static function highlightFile(string $file, int $line, int $lines = 15, bool $php = \true, int $column = 0) : ?string
{
$source = @\file_get_contents($file);
// @ file may not exist
if ($source === \false) {
return null;
}
$source = $php ? static::highlightPhp($source, $line, $lines, $column) : '<pre class=tracy-code><div>' . static::highlightLine(\htmlspecialchars($source, \ENT_IGNORE, 'UTF-8'), $line, $lines, $column) . '</div></pre>';
if ($editor = Helpers::editorUri($file, $line)) {
$source = \substr_replace($source, ' title="Ctrl-Click to open in editor" data-tracy-href="' . Helpers::escapeHtml($editor) . '"', 4, 0);
}
return $source;
}
/**
* Returns syntax highlighted source code.
*/
public static function highlightPhp(string $source, int $line, int $lines = 15, int $column = 0) : string
{
if (\function_exists('ini_set')) {
\ini_set('highlight.comment', '#998; font-style: italic');
\ini_set('highlight.default', '#000');
\ini_set('highlight.html', '#06B');
\ini_set('highlight.keyword', '#D24; font-weight: bold');
\ini_set('highlight.string', '#080');
}
$source = \preg_replace('#(__halt_compiler\\s*\\(\\)\\s*;).*#is', '$1', $source);
$source = \str_replace(["\r\n", "\r"], "\n", $source);
$source = \preg_replace('#/\\*sensitive\\{\\*/.*?/\\*\\}\\*/#s', Dumper\Describer::HiddenValue, $source);
$source = \explode("\n", \highlight_string($source, \true));
$out = $source[0];
// <code><span color=highlight.html>
$source = \str_replace('<br />', "\n", $source[1]);
$out .= static::highlightLine($source, $line, $lines, $column);
$out = \str_replace(' ', ' ', $out);
return "<pre class='tracy-code'><div>{$out}</div></pre>";
}
/**
* Returns highlighted line in HTML code.
*/
public static function highlightLine(string $html, int $line, int $lines = 15, int $column = 0) : string
{
$source = \explode("\n", "\n" . \str_replace("\r\n", "\n", $html));
$out = '';
$spans = 1;
$start = $i = \max(1, \min($line, \count($source) - 1) - (int) \floor($lines * 2 / 3));
while (--$i >= 1) {
// find last highlighted block
if (\preg_match('#.*(</?span[^>]*>)#', $source[$i], $m)) {
if ($m[1] !== '</span>') {
$spans++;
$out .= $m[1];
}
break;
}
}
$source = \array_slice($source, $start, $lines, \true);
\end($source);
$numWidth = \strlen((string) \key($source));
foreach ($source as $n => $s) {
$spans += \substr_count($s, '<span') - \substr_count($s, '</span');
$s = \str_replace(["\r", "\n"], ['', ''], $s);
\preg_match_all('#<[^>]+>#', $s, $tags);
if ($n == $line) {
$s = \strip_tags($s);
if ($column) {
$s = \preg_replace('#((?:&.*?;|[^&]){' . ($column - 1) . '})(&.*?;|.)#u', '\\1<span class="tracy-column-highlight">\\2</span>', $s . ' ', 1);
}
$out .= \sprintf("<span class='tracy-line-highlight'>%{$numWidth}s: %s\n</span>%s", $n, $s, \implode('', $tags[0]));
} else {
$out .= \sprintf("<span class='tracy-line'>%{$numWidth}s:</span> %s\n", $n, $s);
}
}
$out .= \str_repeat('</span>', $spans) . '</code>';
return $out;
}
/**
* Returns syntax highlighted source code to Terminal.
*/
public static function highlightPhpCli(string $file, int $line, int $lines = 15, int $column = 0) : ?string
{
$source = @\file_get_contents($file);
// @ file may not exist
if ($source === \false) {
return null;
}
$s = self::highlightPhp($source, $line, $lines);
$colors = ['color: ' . \ini_get('highlight.comment') => '1;30', 'color: ' . \ini_get('highlight.default') => '1;36', 'color: ' . \ini_get('highlight.html') => '1;35', 'color: ' . \ini_get('highlight.keyword') => '1;37', 'color: ' . \ini_get('highlight.string') => '1;32', 'tracy-line' => '1;30', 'tracy-line-highlight' => "1;37m\x1b[41"];
$stack = ['0'];
$s = \preg_replace_callback('#<\\w+(?: (class|style)=["\'](.*?)["\'])?[^>]*>|</\\w+>#', function ($m) use($colors, &$stack) : string {
if ($m[0][1] === '/') {
\array_pop($stack);
} else {
$stack[] = isset($m[2], $colors[$m[2]]) ? $colors[$m[2]] : '0';
}
return "\x1b[0m\x1b[" . \end($stack) . 'm';
}, $s);
$s = \htmlspecialchars_decode(\strip_tags($s), \ENT_QUOTES | \ENT_HTML5);
return $s;
}
/**
* Should a file be collapsed in stack trace?
* @internal
*/
public function isCollapsed(string $file) : bool
{
$file = \strtr($file, '\\', '/') . '/';
foreach ($this->collapsePaths as $path) {
$path = \strtr($path, '\\', '/') . '/';
if (\strncmp($file, $path, \strlen($path)) === 0) {
return \true;
}
}
return \false;
}
/** @internal */
public function getDumper() : \Closure
{
return function ($v, $k = null) : string {
return Dumper::toHtml($v, [Dumper::DEPTH => $this->maxDepth, Dumper::TRUNCATE => $this->maxLength, Dumper::ITEMS => $this->maxItems, Dumper::SNAPSHOT => &$this->snapshot, Dumper::LOCATION => Dumper::LOCATION_CLASS, Dumper::SCRUBBER => $this->scrubber, Dumper::KEYS_TO_HIDE => $this->keysToHide], $k);
};
}
public function formatMessage(\Throwable $exception) : string
{
$msg = Helpers::encodeString(\trim((string) $exception->getMessage()), self::MaxMessageLength, \false);
// highlight 'string'
$msg = \preg_replace('#\'\\S(?:[^\']|\\\\\')*\\S\'|"\\S(?:[^"]|\\\\")*\\S"#', '<i>$0</i>', $msg);
// clickable class & methods
$msg = \preg_replace_callback('#(\\w+\\\\[\\w\\\\]+\\w)(?:::(\\w+))?#', function ($m) {
if (isset($m[2]) && \method_exists($m[1], $m[2])) {
$r = new \ReflectionMethod($m[1], $m[2]);
} elseif (\class_exists($m[1], \false) || \interface_exists($m[1], \false)) {
$r = new \ReflectionClass($m[1]);
}
if (empty($r) || !$r->getFileName()) {
return $m[0];
}
return '<a href="' . Helpers::escapeHtml(Helpers::editorUri($r->getFileName(), $r->getStartLine())) . '" class="tracy-editor">' . $m[0] . '</a>';
}, $msg);
// clickable file name
$msg = \preg_replace_callback('#([\\w\\\\/.:-]+\\.(?:php|phpt|phtml|latte|neon))(?|:(\\d+)| on line (\\d+))?#', function ($m) {
return @\is_file($m[1]) ? '<a href="' . Helpers::escapeHtml(Helpers::editorUri($m[1], isset($m[2]) ? (int) $m[2] : null)) . '" class="tracy-editor">' . $m[0] . '</a>' : $m[0];
}, $msg);
return $msg;
}
private function renderPhpInfo() : void
{
\ob_start();
@\phpinfo(\INFO_LICENSE);
// @ phpinfo may be disabled
$license = \ob_get_clean();
\ob_start();
@\phpinfo(\INFO_CONFIGURATION | \INFO_MODULES);
// @ phpinfo may be disabled
$info = \ob_get_clean();
if (\strpos($license, '<body') === \false) {
echo '<pre class="tracy-dump tracy-light">', Helpers::escapeHtml($info), '</pre>';
} else {
$info = \str_replace('<table', '<table class="tracy-sortable"', $info);
echo \preg_replace('#^.+<body>|</body>.+\\z|<hr />|<h1>Configuration</h1>#s', '', $info);
}
}
/** @internal */
private function generateNewFileContents(string $file, ?string $class = null) : array
{
foreach (\array_reverse($this->fileGenerators) as $generator) {
$content = $generator($file, $class);
if ($content !== null) {
$line = 1;
$pos = \strpos($content, '$END$');
if ($pos !== \false) {
$content = \substr_replace($content, '', $pos, 5);
$line = \substr_count($content, "\n", 0, $pos) + 1;
}
return [$content, $line];
}
}
return ['', 1];
}
/** @internal */
public static function generateNewPhpFileContents(string $file, ?string $class = null) : ?string
{
if (\substr($file, -4) !== '.php') {
return null;
}
$res = "<?php\n\ndeclare(strict_types=1);\n\n";
if (!$class) {
return $res . '$END$';
}
if ($pos = \strrpos($class, '\\')) {
$res .= 'namespace ' . \substr($class, 0, $pos) . ";\n\n";
$class = \substr($class, $pos + 1);
}
return $res . "class {$class}\n{\n\$END\$\n}\n";
}
private function findGeneratorsAndFibers(object $object) : array
{
$generators = $fibers = [];
$add = function ($obj) use(&$generators, &$fibers) {
if ($obj instanceof \Generator) {
try {
new \ReflectionGenerator($obj);
$generators[\spl_object_id($obj)] = $obj;
} catch (\ReflectionException $e) {
}
} elseif ($obj instanceof \Fiber && $obj->isStarted() && !$obj->isTerminated()) {
$fibers[\spl_object_id($obj)] = $obj;
}
};
foreach ($this->fibers as $k => $v) {
$add($this->fibers instanceof \WeakMap ? $k : $v);
}
if (\PHP_VERSION_ID >= 80000) {
Helpers::traverseValue($object, $add);
}
return [$generators, $fibers];
}
}