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✏️ Editing: GetRequestDataSniff.php

<?php
/**
 * Ensures that getRequestData() is used to access super globals.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/HEAD/licence.txt BSD Licence
 *
 * @deprecated 3.9.0
 */

namespace PHP_CodeSniffer\Standards\MySource\Sniffs\PHP;

use PHP_CodeSniffer\Sniffs\DeprecatedSniff;
use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Files\File;

class GetRequestDataSniff implements Sniff, DeprecatedSniff
{

/**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register()
    {
        return [T_VARIABLE];

}//end register()

/**
     * Processes this sniff, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token in
     *                                               the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

$varName = $tokens[$stackPtr]['content'];
        if ($varName !== '$_REQUEST'
            && $varName !== '$_GET'
            && $varName !== '$_POST'
            && $varName !== '$_FILES'
        ) {
            return;
        }

// The only place these super globals can be accessed directly is
        // in the getRequestData() method of the Security class.
        $inClass = false;
        foreach ($tokens[$stackPtr]['conditions'] as $i => $type) {
            if ($tokens[$i]['code'] === T_CLASS) {
                $className = $phpcsFile->findNext(T_STRING, $i);
                $className = $tokens[$className]['content'];
                if (strtolower($className) === 'security') {
                    $inClass = true;
                } else {
                    // We don't have nested classes.
                    break;
                }
            } else if ($inClass === true && $tokens[$i]['code'] === T_FUNCTION) {
                $funcName = $phpcsFile->findNext(T_STRING, $i);
                $funcName = $tokens[$funcName]['content'];
                if (strtolower($funcName) === 'getrequestdata') {
                    // This is valid.
                    return;
                } else {
                    // We don't have nested functions.
                    break;
                }
            }//end if
        }//end foreach

// If we get to here, the super global was used incorrectly.
        // First find out how it is being used.
        $globalName = strtolower(substr($varName, 2));
        $usedVar    = '';

$openBracket = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
        if ($tokens[$openBracket]['code'] === T_OPEN_SQUARE_BRACKET) {
            $closeBracket = $tokens[$openBracket]['bracket_closer'];
            $usedVar      = $phpcsFile->getTokensAsString(($openBracket + 1), ($closeBracket - $openBracket - 1));
        }

$type  = 'SuperglobalAccessed';
        $error = 'The %s super global must not be accessed directly; use Security::getRequestData(';
        $data  = [$varName];
        if ($usedVar !== '') {
            $type  .= 'WithVar';
            $error .= '%s, \'%s\'';
            $data[] = $usedVar;
            $data[] = $globalName;
        }

$error .= ') instead';
        $phpcsFile->addError($error, $stackPtr, $type, $data);

}//end process()

/**
     * Provide the version number in which the sniff was deprecated.
     *
     * @return string
     */
    public function getDeprecationVersion()
    {
        return 'v3.9.0';

}//end getDeprecationVersion()

/**
     * Provide the version number in which the sniff will be removed.
     *
     * @return string
     */
    public function getRemovalVersion()
    {
        return 'v4.0.0';

}//end getRemovalVersion()

/**
     * Provide a custom message to display with the deprecation.
     *
     * @return string
     */
    public function getDeprecationMessage()
    {
        return 'The MySource standard will be removed completely in v4.0.0.';

}//end getDeprecationMessage()

}//end class

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