%PDF-
%PDF-
Mini Shell
Mini Shell
<?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 Tracy;
use Nette;
/**
* Rendering helpers for Debugger.
*/
class Helpers
{
/**
* Returns HTML link to editor.
*/
public static function editorLink(string $file, ?int $line = null): string
{
$file = strtr($origFile = $file, Debugger::$editorMapping);
if ($editor = self::editorUri($origFile, $line)) {
$parts = explode('/', strtr($file, '\\', '/'));
$file = array_pop($parts);
while ($parts && strlen($file) < 50) {
$file = array_pop($parts) . '/' . $file;
}
$file = ($parts ? '.../' : '') . $file;
$file = strtr($file, '/', DIRECTORY_SEPARATOR);
return self::formatHtml(
'<a href="%" title="%" class="tracy-editor">%<b>%</b>%</a>',
$editor,
$origFile . ($line ? ":$line" : ''),
rtrim(dirname($file), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR,
basename($file),
$line ? ":$line" : ''
);
} else {
return self::formatHtml('<span>%</span>', $file . ($line ? ":$line" : ''));
}
}
/**
* Returns link to editor.
*/
public static function editorUri(
string $file,
?int $line = null,
string $action = 'open',
string $search = '',
string $replace = ''
): ?string
{
if (Debugger::$editor && $file && ($action === 'create' || is_file($file))) {
$file = strtr($file, '/', DIRECTORY_SEPARATOR);
$file = strtr($file, Debugger::$editorMapping);
$search = str_replace("\n", PHP_EOL, $search);
$replace = str_replace("\n", PHP_EOL, $replace);
return strtr(Debugger::$editor, [
'%action' => $action,
'%file' => rawurlencode($file),
'%line' => $line ?: 1,
'%search' => rawurlencode($search),
'%replace' => rawurlencode($replace),
]);
}
return null;
}
public static function formatHtml(string $mask): string
{
$args = func_get_args();
return preg_replace_callback('#%#', function () use (&$args, &$count): string {
return str_replace("\n", ' ', self::escapeHtml($args[++$count]));
}, $mask);
}
public static function escapeHtml($s): string
{
return htmlspecialchars((string) $s, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML5, 'UTF-8');
}
public static function findTrace(array $trace, $method, ?int &$index = null): ?array
{
$m = is_array($method) ? $method : explode('::', $method);
foreach ($trace as $i => $item) {
if (
isset($item['function'])
&& $item['function'] === end($m)
&& isset($item['class']) === isset($m[1])
&& (!isset($item['class']) || $m[0] === '*' || is_a($item['class'], $m[0], true))
) {
$index = $i;
return $item;
}
}
return null;
}
public static function getClass($obj): string
{
return explode("\x00", get_class($obj))[0];
}
/** @internal */
public static function fixStack(\Throwable $exception): \Throwable
{
if (function_exists('xdebug_get_function_stack')) {
$stack = [];
$trace = @xdebug_get_function_stack(); // @ xdebug compatibility warning
$trace = array_slice(array_reverse($trace), 2, -1);
foreach ($trace as $row) {
$frame = [
'file' => $row['file'],
'line' => $row['line'],
'function' => $row['function'] ?? '*unknown*',
'args' => [],
];
if (!empty($row['class'])) {
$frame['type'] = isset($row['type']) && $row['type'] === 'dynamic' ? '->' : '::';
$frame['class'] = $row['class'];
}
$stack[] = $frame;
}
$ref = new \ReflectionProperty('Exception', 'trace');
$ref->setAccessible(true);
$ref->setValue($exception, $stack);
}
return $exception;
}
/** @internal */
public static function errorTypeToString(int $type): string
{
$types = [
E_ERROR => 'Fatal Error',
E_USER_ERROR => 'User Error',
E_RECOVERABLE_ERROR => 'Recoverable Error',
E_CORE_ERROR => 'Core Error',
E_COMPILE_ERROR => 'Compile Error',
E_PARSE => 'Parse Error',
E_WARNING => 'Warning',
E_CORE_WARNING => 'Core Warning',
E_COMPILE_WARNING => 'Compile Warning',
E_USER_WARNING => 'User Warning',
E_NOTICE => 'Notice',
E_USER_NOTICE => 'User Notice',
E_STRICT => 'Strict standards',
E_DEPRECATED => 'Deprecated',
E_USER_DEPRECATED => 'User Deprecated',
];
return $types[$type] ?? 'Unknown error';
}
/** @internal */
public static function getSource(): string
{
if (self::isCli()) {
return 'CLI (PID: ' . getmypid() . ')'
. (isset($_SERVER['argv']) ? ': ' . implode(' ', array_map([self::class, 'escapeArg'], $_SERVER['argv'])) : '');
} elseif (isset($_SERVER['REQUEST_URI'])) {
return (!empty($_SERVER['HTTPS']) && strcasecmp($_SERVER['HTTPS'], 'off') ? 'https://' : 'http://')
. ($_SERVER['HTTP_HOST'] ?? '')
. $_SERVER['REQUEST_URI'];
} else {
return PHP_SAPI;
}
}
/** @internal */
public static function improveException(\Throwable $e): void
{
$message = $e->getMessage();
if (
(!$e instanceof \Error && !$e instanceof \ErrorException)
|| $e instanceof Nette\MemberAccessException
|| strpos($e->getMessage(), 'did you mean')
) {
// do nothing
} elseif (preg_match('#^Call to undefined function (\S+\\\\)?(\w+)\(#', $message, $m)) {
$funcs = array_merge(get_defined_functions()['internal'], get_defined_functions()['user']);
$hint = self::getSuggestion($funcs, $m[1] . $m[2]) ?: self::getSuggestion($funcs, $m[2]);
$message = "Call to undefined function $m[2](), did you mean $hint()?";
$replace = ["$m[2](", "$hint("];
} elseif (preg_match('#^Call to undefined method ([\w\\\\]+)::(\w+)#', $message, $m)) {
$hint = self::getSuggestion(get_class_methods($m[1]) ?: [], $m[2]);
$message .= ", did you mean $hint()?";
$replace = ["$m[2](", "$hint("];
} elseif (preg_match('#^Undefined variable:? \$?(\w+)#', $message, $m) && !empty($e->context)) {
$hint = self::getSuggestion(array_keys($e->context), $m[1]);
$message = "Undefined variable $$m[1], did you mean $$hint?";
$replace = ["$$m[1]", "$$hint"];
} elseif (preg_match('#^Undefined property: ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
$rc = new \ReflectionClass($m[1]);
$items = array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), function ($prop) { return !$prop->isStatic(); });
$hint = self::getSuggestion($items, $m[2]);
$message .= ", did you mean $$hint?";
$replace = ["->$m[2]", "->$hint"];
} elseif (preg_match('#^Access to undeclared static property:? ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
$rc = new \ReflectionClass($m[1]);
$items = array_filter($rc->getProperties(\ReflectionProperty::IS_STATIC), function ($prop) { return $prop->isPublic(); });
$hint = self::getSuggestion($items, $m[2]);
$message .= ", did you mean $$hint?";
$replace = ["::$$m[2]", "::$$hint"];
}
if (isset($hint)) {
$loc = Debugger::mapSource($e->getFile(), $e->getLine()) ?? ['file' => $e->getFile(), 'line' => $e->getLine()];
$ref = new \ReflectionProperty($e, 'message');
$ref->setAccessible(true);
$ref->setValue($e, $message);
@$e->tracyAction = [ // dynamic properties are deprecated since PHP 8.2
'link' => self::editorUri($loc['file'], $loc['line'], 'fix', $replace[0], $replace[1]),
'label' => 'fix it',
];
}
}
/** @internal */
public static function improveError(string $message, array $context = []): string
{
if (preg_match('#^Undefined variable:? \$?(\w+)#', $message, $m) && $context) {
$hint = self::getSuggestion(array_keys($context), $m[1]);
return $hint
? "Undefined variable $$m[1], did you mean $$hint?"
: $message;
} elseif (preg_match('#^Undefined property: ([\w\\\\]+)::\$(\w+)#', $message, $m)) {
$rc = new \ReflectionClass($m[1]);
$items = array_filter($rc->getProperties(\ReflectionProperty::IS_PUBLIC), function ($prop) { return !$prop->isStatic(); });
$hint = self::getSuggestion($items, $m[2]);
return $hint ? $message . ", did you mean $$hint?" : $message;
}
return $message;
}
/** @internal */
public static function guessClassFile(string $class): ?string
{
$segments = explode('\\', $class);
$res = null;
$max = 0;
foreach (get_declared_classes() as $class) {
$parts = explode('\\', $class);
foreach ($parts as $i => $part) {
if ($part !== ($segments[$i] ?? null)) {
break;
}
}
if ($i > $max && $i < count($segments) && ($file = (new \ReflectionClass($class))->getFileName())) {
$max = $i;
$res = array_merge(array_slice(explode(DIRECTORY_SEPARATOR, $file), 0, $i - count($parts)), array_slice($segments, $i));
$res = implode(DIRECTORY_SEPARATOR, $res) . '.php';
}
}
return $res;
}
/**
* Finds the best suggestion.
* @internal
*/
public static function getSuggestion(array $items, string $value): ?string
{
$best = null;
$min = (strlen($value) / 4 + 1) * 10 + .1;
$items = array_map(function ($item) {
return $item instanceof \Reflector ? $item->getName() : (string) $item;
}, $items);
foreach (array_unique($items) as $item) {
if (($len = levenshtein($item, $value, 10, 11, 10)) > 0 && $len < $min) {
$min = $len;
$best = $item;
}
}
return $best;
}
/** @internal */
public static function isHtmlMode(): bool
{
return empty($_SERVER['HTTP_X_REQUESTED_WITH'])
&& empty($_SERVER['HTTP_X_TRACY_AJAX'])
&& isset($_SERVER['HTTP_HOST'])
&& !self::isCli()
&& !preg_match('#^Content-Type: *+(?!text/html)#im', implode("\n", headers_list()));
}
/** @internal */
public static function isAjax(): bool
{
return isset($_SERVER['HTTP_X_TRACY_AJAX']) && preg_match('#^\w{10,15}$#D', $_SERVER['HTTP_X_TRACY_AJAX']);
}
/** @internal */
public static function isRedirect(): bool
{
return (bool) preg_match('#^Location:#im', implode("\n", headers_list()));
}
/** @internal */
public static function createId(): string
{
return bin2hex(random_bytes(5));
}
/** @internal */
public static function isCli(): bool
{
return PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg';
}
/** @internal */
public static function getNonce(): ?string
{
return preg_match('#^Content-Security-Policy(?:-Report-Only)?:.*\sscript-src\s+(?:[^;]+\s)?\'nonce-([\w+/]+=*)\'#mi', implode("\n", headers_list()), $m)
? $m[1]
: null;
}
/**
* Escape a string to be used as a shell argument.
*/
private static function escapeArg(string $s): string
{
if (preg_match('#^[a-z0-9._=/:-]+$#Di', $s)) {
return $s;
}
return defined('PHP_WINDOWS_VERSION_BUILD')
? '"' . str_replace('"', '""', $s) . '"'
: escapeshellarg($s);
}
/**
* Captures PHP output into a string.
*/
public static function capture(callable $func): string
{
ob_start(function () {});
try {
$func();
return ob_get_clean();
} catch (\Throwable $e) {
ob_end_clean();
throw $e;
}
}
/** @internal */
public static function encodeString(string $s, ?int $maxLength = null, bool $showWhitespaces = true): string
{
$utf8 = self::isUtf8($s);
$len = $utf8 ? self::utf8Length($s) : strlen($s);
return $maxLength && $len > $maxLength + 20
? self::doEncodeString(self::truncateString($s, $maxLength, $utf8), $utf8, $showWhitespaces)
. ' <span>…</span> '
. self::doEncodeString(self::truncateString($s, -10, $utf8), $utf8, $showWhitespaces)
: self::doEncodeString($s, $utf8, $showWhitespaces);
}
private static function doEncodeString(string $s, bool $utf8, bool $showWhitespaces): string
{
$specials = [
true => [
"\r" => '<i>\r</i>',
"\n" => "<i>\\n</i>\n",
"\t" => '<i>\t</i> ',
"\e" => '<i>\e</i>',
'<' => '<',
'&' => '&',
],
false => [
"\r" => "\r",
"\n" => "\n",
"\t" => "\t",
"\e" => '<i>\e</i>',
'<' => '<',
'&' => '&',
],
];
$special = $specials[$showWhitespaces];
$s = preg_replace_callback(
$utf8 ? '#[\p{C}<&]#u' : '#[\x00-\x1F\x7F-\xFF<&]#',
function ($m) use ($special) {
return $special[$m[0]] ?? (strlen($m[0]) === 1
? '<i>\x' . str_pad(strtoupper(dechex(ord($m[0]))), 2, '0', STR_PAD_LEFT) . '</i>'
: '<i>\u{' . strtoupper(ltrim(dechex(self::utf8Ord($m[0])), '0')) . '}</i>');
},
$s
);
$s = str_replace('</i><i>', '', $s);
$s = preg_replace('~\n$~D', '', $s);
return $s;
}
private static function utf8Ord(string $c): int
{
$ord0 = ord($c[0]);
if ($ord0 < 0x80) {
return $ord0;
} elseif ($ord0 < 0xE0) {
return ($ord0 << 6) + ord($c[1]) - 0x3080;
} elseif ($ord0 < 0xF0) {
return ($ord0 << 12) + (ord($c[1]) << 6) + ord($c[2]) - 0xE2080;
} else {
return ($ord0 << 18) + (ord($c[1]) << 12) + (ord($c[2]) << 6) + ord($c[3]) - 0x3C82080;
}
}
/** @internal */
public static function utf8Length(string $s): int
{
return function_exists('mb_strlen')
? mb_strlen($s, 'UTF-8')
: strlen(utf8_decode($s));
}
/** @internal */
public static function isUtf8(string $s): bool
{
return (bool) preg_match('##u', $s);
}
/** @internal */
public static function truncateString(string $s, int $len, bool $utf): string
{
if (!$utf) {
return $len < 0 ? substr($s, $len) : substr($s, 0, $len);
} elseif (function_exists('mb_substr')) {
return $len < 0
? mb_substr($s, $len, -$len, 'UTF-8')
: mb_substr($s, 0, $len, 'UTF-8');
} else {
$len < 0
? preg_match('#.{0,' . -$len . '}\z#us', $s, $m)
: preg_match("#^.{0,$len}#us", $s, $m);
return $m[0];
}
}
/** @internal */
public static function minifyJs(string $s): string
{
// author: Jakub Vrana https://php.vrana.cz/minifikace-javascriptu.php
$last = '';
return preg_replace_callback(
<<<'XX'
(
(?:
(^|[-+\([{}=,:;!%^&*|?~]|/(?![/*])|return|throw) # context before regexp
(?:\s|//[^\n]*+\n|/\*(?:[^*]|\*(?!/))*+\*/)* # optional space
(/(?![/*])(?:\\[^\n]|[^[\n/\\]|\[(?:\\[^\n]|[^]])++)+/) # regexp
|(^
|'(?:\\.|[^\n'\\])*'
|"(?:\\.|[^\n"\\])*"
|([0-9A-Za-z_$]+)
|([-+]+)
|.
)
)(?:\s|//[^\n]*+\n|/\*(?:[^*]|\*(?!/))*+\*/)* # optional space
())sx
XX
,
function ($match) use (&$last) {
[, $context, $regexp, $result, $word, $operator] = $match;
if ($word !== '') {
$result = ($last === 'word' ? ' ' : ($last === 'return' ? ' ' : '')) . $result;
$last = ($word === 'return' || $word === 'throw' || $word === 'break' ? 'return' : 'word');
} elseif ($operator) {
$result = ($last === $operator[0] ? ' ' : '') . $result;
$last = $operator[0];
} else {
if ($regexp) {
$result = $context . ($context === '/' ? ' ' : '') . $regexp;
}
$last = '';
}
return $result;
},
$s . "\n"
);
}
/** @internal */
public static function minifyCss(string $s): string
{
$last = '';
return preg_replace_callback(
<<<'XX'
(
(^
|'(?:\\.|[^\n'\\])*'
|"(?:\\.|[^\n"\\])*"
|([0-9A-Za-z_*#.%:()[\]-]+)
|.
)(?:\s|/\*(?:[^*]|\*(?!/))*+\*/)* # optional space
())sx
XX
,
function ($match) use (&$last) {
[, $result, $word] = $match;
if ($last === ';') {
$result = $result === '}' ? '}' : ';' . $result;
$last = '';
}
if ($word !== '') {
$result = ($last === 'word' ? ' ' : '') . $result;
$last = 'word';
} elseif ($result === ';') {
$last = ';';
$result = '';
} else {
$last = '';
}
return $result;
},
$s . "\n"
);
}
public static function detectColors(): bool
{
return self::isCli()
&& getenv('NO_COLOR') === false // https://no-color.org
&& (getenv('FORCE_COLOR')
|| (function_exists('sapi_windows_vt100_support')
? sapi_windows_vt100_support(STDOUT)
: @stream_isatty(STDOUT)) // @ may trigger error 'cannot cast a filtered stream on this system'
);
}
public static function getExceptionChain(\Throwable $ex): array
{
$res = [$ex];
while (($ex = $ex->getPrevious()) && !in_array($ex, $res, true)) {
$res[] = $ex;
}
return $res;
}
public static function traverseValue($val, callable $callback, array &$skip = [], ?string $refId = null): void
{
if (is_object($val)) {
$id = spl_object_id($val);
if (!isset($skip[$id])) {
$skip[$id] = true;
$callback($val);
self::traverseValue((array) $val, $callback, $skip);
}
} elseif (is_array($val)) {
if ($refId) {
if (isset($skip[$refId])) {
return;
}
$skip[$refId] = true;
}
foreach ($val as $k => $v) {
$refId = ($r = \ReflectionReference::fromArrayElement($val, $k)) ? $r->getId() : null;
self::traverseValue($v, $callback, $skip, $refId);
}
}
}
}
Zerion Mini Shell 1.0