80 lines
2.6 KiB
PowerShell
80 lines
2.6 KiB
PowerShell
. $(-Join($(Get-Location).Path, '\logger.ps1'))
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. $(-Join($(Get-Location).Path, '\config.ps1'))
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function Test-SocksProxy {
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param (
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[string]$ProxyHost,
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[int]$ProxyPort,
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[string]$TestHost = "google.com",
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[int]$TestPort = 443
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)
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$result = $false
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try {
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# check if proxy is working
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$result = $(Test-Connection $ProxyHost -Count 1).Status
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if(!($result -eq "Success")){
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Write-Log -Message "proxy host $ProxyHost is $result"
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return $false
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}
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# create TCP client
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$tcpClient = New-Object System.Net.Sockets.TcpClient
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$tcpClient.SendTimeout = 1000
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$tcpClient.ReceiveTimeout = 1000
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$tcpClient.Connect($ProxyHost, $ProxyPort)
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# 代理成功连接，开始验证目标地址是否可达
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$stream = $tcpClient.GetStream()
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# 构建 SOCKS5 握手包 (Initial request)
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$handshake = [byte[]](0x05, 0x01, 0x00) # Version 5, 1 method, No auth
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$stream.Write($handshake, 0, $handshake.Length)
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# 接收服务器响应
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$response = New-Object byte[] 2
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$stream.Read($response, 0, $response.Length)
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if ($response[1] -ne 0x00) {
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throw "SOCKS handshake failed. Proxy does not support no-authentication."
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}
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# 将 TestHost 转换为字节数组
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$hostBytes = [System.Text.Encoding]::ASCII.GetBytes($TestHost)
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# 构建 SOCKS5 连接请求
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$connectRequest = @(
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0x05, 0x01, 0x00, 0x03, # Version 5, Connect, Reserved, Domain
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[byte]$hostBytes.Length # Domain length
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) + $hostBytes + @(
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[byte]($TestPort -shr 8), # Port (high byte)
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[byte]($TestPort -band 0xFF) # Port (low byte)
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)
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$stream.Write($connectRequest, 0, $connectRequest.Length)
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# 接收连接响应
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$connectResponse = New-Object byte[] 10
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$stream.Read($connectResponse, 0, $connectResponse.Length)
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if ($connectResponse[1] -eq 0x00) {
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Write-Log -Message "Proxy is valid and can connect to ${TestHost}:$TestPort."
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$result = $true
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} else {
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throw "SOCKS connection to ${TestHost}:$TestPort failed. Response code: $($connectResponse[1])"
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$result = $false
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}
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} catch {
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Write-Log -Message "Proxy test failed: $_"
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$result = $false
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} finally {
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# 关闭连接
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if ($stream) { $stream.Dispose() }
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if ($tcpClient) { $tcpClient.Close() }
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}
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return $result
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}
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# Test-SocksProxy -ProxyHost "192.168.6.2" -ProxyPort 1081
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