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<?php
/**
* Basic util functions.
*
* @author Greg Sherwood <[email protected]>
* @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
*/
namespace PHP_CodeSniffer\Util;
class Common
{
/**
* An array of variable types for param/var we will check.
*
* @var string[]
*/
public static $allowedTypes = [
'array',
'boolean',
'float',
'integer',
'mixed',
'object',
'string',
'resource',
'callable',
];
/**
* Return TRUE if the path is a PHAR file.
*
* @param string $path The path to use.
*
* @return bool
*/
public static function isPharFile($path)
{
if (strpos($path, 'phar://') === 0) {
return true;
}
return false;
}//end isPharFile()
/**
* Checks if a file is readable.
*
* Addresses PHP bug related to reading files from network drives on Windows.
* e.g. when using WSL2.
*
* @param string $path The path to the file.
*
* @return boolean
*/
public static function isReadable($path)
{
if (@is_readable($path) === true) {
return true;
}
if (@file_exists($path) === true && @is_file($path) === true) {
$f = @fopen($path, 'rb');
if (fclose($f) === true) {
return true;
}
}
return false;
}//end isReadable()
/**
* CodeSniffer alternative for realpath.
*
* Allows for PHAR support.
*
* @param string $path The path to use.
*
* @return string|false
*/
public static function realpath($path)
{
// Support the path replacement of ~ with the user's home directory.
if (substr($path, 0, 2) === '~/') {
$homeDir = getenv('HOME');
if ($homeDir !== false) {
$path = $homeDir.substr($path, 1);
}
}
// Check for process substitution.
if (strpos($path, '/dev/fd') === 0) {
return str_replace('/dev/fd', 'php://fd', $path);
}
// No extra work needed if this is not a phar file.
if (self::isPharFile($path) === false) {
return realpath($path);
}
// Before trying to break down the file path,
// check if it exists first because it will mostly not
// change after running the below code.
if (file_exists($path) === true) {
return $path;
}
$phar = \Phar::running(false);
$extra = str_replace('phar://'.$phar, '', $path);
$path = realpath($phar);
if ($path === false) {
return false;
}
$path = 'phar://'.$path.$extra;
if (file_exists($path) === true) {
return $path;
}
return false;
}//end realpath()
/**
* Removes a base path from the front of a file path.
*
* @param string $path The path of the file.
* @param string $basepath The base path to remove. This should not end
* with a directory separator.
*
* @return string
*/
public static function stripBasepath($path, $basepath)
{
if (empty($basepath) === true) {
return $path;
}
$basepathLen = strlen($basepath);
if (substr($path, 0, $basepathLen) === $basepath) {
$path = substr($path, $basepathLen);
}
$path = ltrim($path, DIRECTORY_SEPARATOR);
if ($path === '') {
$path = '.';
}
return $path;
}//end stripBasepath()
/**
* Detects the EOL character being used in a string.
*
* @param string $contents The contents to check.
*
* @return string
*/
public static function detectLineEndings($contents)
{
if (preg_match("/\r\n?|\n/", $contents, $matches) !== 1) {
// Assume there are no newlines.
$eolChar = "\n";
} else {
$eolChar = $matches[0];
}
return $eolChar;
}//end detectLineEndings()
/**
* Check if STDIN is a TTY.
*
* @return boolean
*/
public static function isStdinATTY()
{
// The check is slow (especially calling `tty`) so we static
// cache the result.
static $isTTY = null;
if ($isTTY !== null) {
return $isTTY;
}
if (defined('STDIN') === false) {
return false;
}
// If PHP has the POSIX extensions we will use them.
if (function_exists('posix_isatty') === true) {
$isTTY = (posix_isatty(STDIN) === true);
return $isTTY;
}
// Next try is detecting whether we have `tty` installed and use that.
if (defined('PHP_WINDOWS_VERSION_PLATFORM') === true) {
$devnull = 'NUL';
$which = 'where';
} else {
$devnull = '/dev/null';
$which = 'which';
}
$tty = trim(shell_exec("$which tty 2> $devnull"));
if (empty($tty) === false) {
exec("tty -s 2> $devnull", $output, $returnValue);
$isTTY = ($returnValue === 0);
return $isTTY;
}
// Finally we will use fstat. The solution borrowed from
// https://stackoverflow.com/questions/11327367/detect-if-a-php-script-is-being-run-interactively-or-not
// This doesn't work on Mingw/Cygwin/... using Mintty but they
// have `tty` installed.
$type = [
'S_IFMT' => 0170000,
'S_IFIFO' => 0010000,
];
$stat = fstat(STDIN);
$mode = ($stat['mode'] & $type['S_IFMT']);
$isTTY = ($mode !== $type['S_IFIFO']);
return $isTTY;
}//end isStdinATTY()
/**
* Escape a path to a system command.
*
* @param string $cmd The path to the system command.
*
* @return string
*/
public static function escapeshellcmd($cmd)
{
$cmd = escapeshellcmd($cmd);
if (stripos(PHP_OS, 'WIN') === 0) {
// Spaces are not escaped by escapeshellcmd on Windows, but need to be
// for the command to be able to execute.
$cmd = preg_replace('`(?<!^) `', '^ ', $cmd);
}
return $cmd;
}//end escapeshellcmd()
/**
* Prepares token content for output to screen.
*
* Replaces invisible characters so they are visible. On non-Windows
* operating systems it will also colour the invisible characters.
*
* @param string $content The content to prepare.
* @param string[] $exclude A list of characters to leave invisible.
* Can contain \r, \n, \t and a space.
*
* @return string
*/
public static function prepareForOutput($content, $exclude=[])
{
if (stripos(PHP_OS, 'WIN') === 0) {
if (in_array("\r", $exclude, true) === false) {
$content = str_replace("\r", '\r', $content);
}
if (in_array("\n", $exclude, true) === false) {
$content = str_replace("\n", '\n', $content);
}
if (in_array("\t", $exclude, true) === false) {
$content = str_replace("\t", '\t', $content);
}
} else {
if (in_array("\r", $exclude, true) === false) {
$content = str_replace("\r", "\033[30;1m\\r\033[0m", $content);
}
if (in_array("\n", $exclude, true) === false) {
$content = str_replace("\n", "\033[30;1m\\n\033[0m", $content);
}
if (in_array("\t", $exclude, true) === false) {
$content = str_replace("\t", "\033[30;1m\\t\033[0m", $content);
}
if (in_array(' ', $exclude, true) === false) {
$content = str_replace(' ', "\033[30;1m·\033[0m", $content);
}
}//end if
return $content;
}//end prepareForOutput()
/**
* Returns true if the specified string is in the camel caps format.
*
* @param string $string The string the verify.
* @param boolean $classFormat If true, check to see if the string is in the
* class format. Class format strings must start
* with a capital letter and contain no
* underscores.
* @param boolean $public If true, the first character in the string
* must be an a-z character. If false, the
* character must be an underscore. This
* argument is only applicable if $classFormat
* is false.
* @param boolean $strict If true, the string must not have two capital
* letters next to each other. If false, a
* relaxed camel caps policy is used to allow
* for acronyms.
*
* @return boolean
*/
public static function isCamelCaps(
$string,
$classFormat=false,
$public=true,
$strict=true
) {
// Check the first character first.
if ($classFormat === false) {
$legalFirstChar = '';
if ($public === false) {
$legalFirstChar = '[_]';
}
if ($strict === false) {
// Can either start with a lowercase letter, or multiple uppercase
// in a row, representing an acronym.
$legalFirstChar .= '([A-Z]{2,}|[a-z])';
} else {
$legalFirstChar .= '[a-z]';
}
} else {
$legalFirstChar = '[A-Z]';
}
if (preg_match("/^$legalFirstChar/", $string) === 0) {
return false;
}
// Check that the name only contains legal characters.
$legalChars = 'a-zA-Z0-9';
if (preg_match("|[^$legalChars]|", substr($string, 1)) > 0) {
return false;
}
if ($strict === true) {
// Check that there are not two capital letters next to each other.
$length = strlen($string);
$lastCharWasCaps = $classFormat;
for ($i = 1; $i < $length; $i++) {
$ascii = ord($string[$i]);
if ($ascii >= 48 && $ascii <= 57) {
// The character is a number, so it can't be a capital.
$isCaps = false;
} else {
if (strtoupper($string[$i]) === $string[$i]) {
$isCaps = true;
} else {
$isCaps = false;
}
}
if ($isCaps === true && $lastCharWasCaps === true) {
return false;
}
$lastCharWasCaps = $isCaps;
}
}//end if
return true;
}//end isCamelCaps()
/**
* Returns true if the specified string is in the underscore caps format.
*
* @param string $string The string to verify.
*
* @return boolean
*/
public static function isUnderscoreName($string)
{
// If there are space in the name, it can't be valid.
if (strpos($string, ' ') !== false) {
return false;
}
$validName = true;
$nameBits = explode('_', $string);
if (preg_match('|^[A-Z]|', $string) === 0) {
// Name does not begin with a capital letter.
$validName = false;
} else {
foreach ($nameBits as $bit) {
if ($bit === '') {
continue;
}
if ($bit[0] !== strtoupper($bit[0])) {
$validName = false;
break;
}
}
}
return $validName;
}//end isUnderscoreName()
/**
* Returns a valid variable type for param/var tags.
*
* If type is not one of the standard types, it must be a custom type.
* Returns the correct type name suggestion if type name is invalid.
*
* @param string $varType The variable type to process.
*
* @return string
*/
public static function suggestType($varType)
{
if ($varType === '') {
return '';
}
if (in_array($varType, self::$allowedTypes, true) === true) {
return $varType;
} else {
$lowerVarType = strtolower($varType);
switch ($lowerVarType) {
case 'bool':
case 'boolean':
return 'boolean';
case 'double':
case 'real':
case 'float':
return 'float';
case 'int':
case 'integer':
return 'integer';
case 'array()':
case 'array':
return 'array';
}//end switch
if (strpos($lowerVarType, 'array(') !== false) {
// Valid array declaration:
// array, array(type), array(type1 => type2).
$matches = [];
$pattern = '/^array\(\s*([^\s^=^>]*)(\s*=>\s*(.*))?\s*\)/i';
if (preg_match($pattern, $varType, $matches) !== 0) {
$type1 = '';
if (isset($matches[1]) === true) {
$type1 = $matches[1];
}
$type2 = '';
if (isset($matches[3]) === true) {
$type2 = $matches[3];
}
$type1 = self::suggestType($type1);
$type2 = self::suggestType($type2);
if ($type2 !== '') {
$type2 = ' => '.$type2;
}
return "array($type1$type2)";
} else {
return 'array';
}//end if
} else if (in_array($lowerVarType, self::$allowedTypes, true) === true) {
// A valid type, but not lower cased.
return $lowerVarType;
} else {
// Must be a custom type name.
return $varType;
}//end if
}//end if
}//end suggestType()
/**
* Given a sniff class name, returns the code for the sniff.
*
* @param string $sniffClass The fully qualified sniff class name.
*
* @return string
*/
public static function getSniffCode($sniffClass)
{
$parts = explode('\\', $sniffClass);
$sniff = array_pop($parts);
if (substr($sniff, -5) === 'Sniff') {
// Sniff class name.
$sniff = substr($sniff, 0, -5);
} else {
// Unit test class name.
$sniff = substr($sniff, 0, -8);
}
$category = array_pop($parts);
$sniffDir = array_pop($parts);
$standard = array_pop($parts);
$code = $standard.'.'.$category.'.'.$sniff;
return $code;
}//end getSniffCode()
/**
* Removes project-specific information from a sniff class name.
*
* @param string $sniffClass The fully qualified sniff class name.
*
* @return string
*/
public static function cleanSniffClass($sniffClass)
{
$newName = strtolower($sniffClass);
$sniffPos = strrpos($newName, '\sniffs\\');
if ($sniffPos === false) {
// Nothing we can do as it isn't in a known format.
return $newName;
}
$end = (strlen($newName) - $sniffPos + 1);
$start = strrpos($newName, '\\', ($end * -1));
if ($start === false) {
// Nothing needs to be cleaned.
return $newName;
}
$newName = substr($newName, ($start + 1));
return $newName;
}//end cleanSniffClass()
}//end class