# Download web.config + list logs dir for upload-failure diagnosis
$ErrorActionPreference = "Continue"
$FtpHost="116.198.221.125"; $FtpPort=21; $FtpUser="wenchuanyi"; $FtpPass="r7P^f*v7rFts"
$Out = "D:\CodeBuddy\Pros\WenChuanyi\deploy\_diag"
New-Item -ItemType Directory -Force -Path $Out | Out-Null
function NewR($p,$m,$to=60000){ $u="ftp://${FtpHost}:${FtpPort}/"+$p.TrimStart('/'); $r=[System.Net.FtpWebRequest]::Create($u); $r.Method=$m; $r.Credentials=New-Object System.Net.NetworkCredential($FtpUser,$FtpPass); $r.UsePassive=$true; $r.UseBinary=$true; $r.KeepAlive=$false; $r.Timeout=$to; $r }
function Down($rp,$lp){
  try{
    $r=NewR $rp ([System.Net.WebRequestMethods+Ftp]::DownloadFile)
    $resp=$r.GetResponse(); $fs=[IO.File]::Create($lp)
    $s=$resp.GetResponseStream(); $b=New-Object byte[] 65536
    while(($n=$s.Read($b,0,65536)) -gt 0){ $fs.Write($b,0,$n) }
    $fs.Close(); $s.Close(); $resp.Close()
    Write-Host "DOWN OK $rp -> $lp"
  }catch{ Write-Host "DOWN FAIL $rp : $($_.Exception.Message)" }
}
function ListF($p){
  try{
    $r=NewR $p ([System.Net.WebRequestMethods+Ftp]::ListDirectoryDetails)
    $resp=$r.GetResponse(); $sr=New-Object IO.StreamReader($resp.GetResponseStream(),[Text.Encoding]::UTF8)
    $txt=$sr.ReadToEnd(); $sr.Close(); $resp.Close()
    return $txt
  }catch{ return "ERR $($_.Exception.Message)" }
}
Down "/wwwroot/web.config" "$Out\server-web.config"
Write-Host "=== logs dir ==="
(ListF "/wwwroot/logs/") | ForEach-Object { Write-Host $_ }
Write-Host "=== wwwroot dir ==="
(ListF "/wwwroot/") | ForEach-Object { Write-Host $_ }