{"id":33524,"date":"2013-10-09T17:01:33","date_gmt":"2013-10-09T16:01:33","guid":{"rendered":"http:\/\/www.fuhaijun.com\/?p=33524"},"modified":"2024-11-06T11:18:46","modified_gmt":"2024-11-06T03:18:46","slug":"powershell%e5%ae%9e%e7%8e%b0%e6%96%87%e4%bb%b6%e4%b8%8b%e8%bd%bd%e7%b1%bbwget","status":"publish","type":"post","link":"https:\/\/www.fuhaijun.com\/?p=33524","title":{"rendered":"PowerShell\u5b9e\u73b0\u6587\u4ef6\u4e0b\u8f7d(\u7c7bwget)"},"content":{"rendered":"

\u5bf9Linux\u719f\u6089\u7684\u8bfb\u8005\u53ef\u80fd\u4f1a\u5bf9Linux\u901a\u8fc7wget\u4e0b\u8f7d\u6587\u4ef6\u6709\u5370\u8c61\uff0c\u8fd9\u4e2a\u5de5\u5177\u529f\u80fd\u5f88\u5f3a\u5927\uff0c\u5728.NET\u73af\u5883\u4e0b\u63d0\u5230\u4e0b\u8f7d\u6587\u4ef6\u5927\u591a\u6570\u4eba\u719f\u6089\u7684\u662f\u901a\u8fc7System.Net.WebClient<\/a>\u8fdb\u884c\u4e0b\u8f7d\uff0c\u8fd9\u4e2a\u7a0b\u5e8f\u96c6\u80fd\u5b9e\u73b0\u4e0b\u8f7d\u7684\u529f\u80fd\uff0c\u4f46\u662f\u6709\u7f3a\u9677\uff0c\u5982\u679c\u78b0\u4e0a\u7c7b\u4f3c\u4e8e…\/scripts\/?dl=417\u8fd9\u7c7b\u7684\u4e0b\u8f7d\u94fe\u63a5\u5c06\u65e0\u6cd5\u6b63\u786e\u8bc6\u522b\u6587\u4ef6\u540d\uff0c\u4e0b\u8f7d\u7684\u6587\u4ef6\u901a\u5e38\u4f1a\u88ab\u547d\u540d\u4e3adl=417\u8fd9\u6837\u53e4\u602a\u7684\u540d\u5b57\uff0c\u5176\u5b9e\u5bf9\u5e94\u7684\u6587\u4ef6\u540d\u662f\u5728\u8bbf\u95ee\u8fd9\u4e2a\u94fe\u63a5\u8fd4\u56de\u7ed3\u679c\u7684HTTP\u5934\u4e2d\u5305\u542b\u7684\u3002\u4e8b\u5b9e\u4e0a\u5fae\u8f6f\u4e5f\u63d0\u4f9b\u4e86\u907f\u514d\u8fd9\u4e9b\u7f3a\u9677\u7684\u7a0b\u5e8f\u96c6System.Net.HttpWebRequest<\/a> \u548c HttpWebResponse<\/a>\uff0c\u672c\u6587\u5c06\u4f1a\u4f7f\u7528\u8fd9\u4e24\u4e2a\u7a0b\u5e8f\u96c6\u6765\u5b9e\u73b0PowerShell\u7248wget\u7684\u529f\u80fd\u3002<\/p>\n

\u4ee3\u7801\u4e0d\u600e\u4e48\u590d\u6742\uff0c\u57fa\u672c\u4e0a\u5c31\u662f\u521b\u5efaHttpWebRequest\u5bf9\u8c61\uff0c\u8bbe\u5b9aUserAgent\u548cCookieContainer\u4ee5\u514d\u5728\u9047\u5230\u8bbe\u7f6e\u9632\u76d7\u94fe\u7684\u670d\u52a1\u5668\u51fa\u73b0\u65e0\u6cd5\u4e0b\u8f7d\u7684\u60c5\u51b5\u3002\u7136\u540e\u901a\u8fc7HttpWebRequest\u5bf9\u8c61\u7684GetResponse()\u65b9\u6cd5\u4ecehttp\u5934\u4e2d\u83b7\u53d6\u76ee\u6807\u6587\u4ef6\u7684\u5927\u5c0f\u4ee5\u53ca\u6587\u4ef6\u540d\uff0c\u4ee5\u4fbf\u80fd\u5728\u4e0b\u8f7d\u5230\u6587\u4ef6\u65f6\u63d0\u793a\u5f53\u524d\u4e0b\u8f7d\u8fdb\u5ea6\uff0c\u5728\u4e0b\u8f7d\u5b8c\u6587\u4ef6\u540e\uff0c\u5217\u51fa\u5f53\u524d\u76ee\u5f55\u4e0b\u5bf9\u5e94\u7684\u6587\u4ef6\u3002\u4ee3\u7801\u4e0d\u590d\u6742\uff0c\u6709\u4efb\u4f55\u7591\u95ee\u7684\u8bfb\u8005\u53ef\u4ee5\u7559\u8a00\u7ed9\u6211\uff0c\u8fdb\u884c\u4ea4\u6d41\uff0c\u4e0b\u9762\u4e0a\u4ee3\u7801\uff1a<\/p>\n

        =====\u6587\u4ef6\u540d\uff1aGet-WebFile.ps1=====<\/span>\nfunction<\/font> Get-WebFile {\n<# Author:fuhj(powershell#live.cn ,http:\/\/fuhaijun.com) <\/font>\n   Downloads a file or page from the web\n.Example\n  Get-WebFile http:\/\/mirrors.cnnic.cn\/apache\/couchdb\/binary\/win\/1.4.0\/setup-couchdb-1.4.0_R16B01.exe\n  Downloads the latest version of this file to the current directory\n#><\/font>\n\n[CmdletBinding(DefaultParameterSetName="NoCredentials"<\/font>)]\n   param<\/font>(\n      #  The URL of the file\/page to download<\/font>\n      [Parameter(Mandatory=$true,Position=0)]\n      [System.Uri][Alias("Url"<\/font>)]$Uri # = (Read-Host "The URL to download")<\/font>\n   ,\n      #  A Path to save the downloaded content. <\/font>\n      [string<\/font>]$FileName\n   ,\n      #  Leave the file unblocked instead of blocked<\/font>\n      [Switch<\/font>]$Unblocked\n   ,\n      #  Rather than saving the downloaded content to a file, output it.  <\/font>\n      #  This is for text documents like web pages and rss feeds, and allows you to avoid temporarily caching the text in a file.<\/font>\n      [switch<\/font>]$Passthru\n   ,\n      #  Supresses the Write-Progress during download<\/font>\n      [switch<\/font>]$Quiet\n   ,\n      #  The name of a variable to store the session (cookies) in<\/font>\n      [String<\/font>]$SessionVariableName\n   ,\n      #  Text to include at the front of the UserAgent string<\/font>\n      [string<\/font>]$UserAgent = "PowerShellWget\/$(1.0)"<\/font>      \n   )\n\n   Write-Verbose<\/font> "Downloading &<\/font>#39;$Uri'"<\/font>\n   $EAP,$ErrorActionPreference = $ErrorActionPreference, "Stop"<\/font>\n   $request = [System.Net.HttpWebRequest]::Create($Uri);\n   $ErrorActionPreference = $EAP   \n   $request.UserAgent = $(\n         "{0} (PowerShell {1}; .NET CLR {2}; {3}; http:\/\/fuhaijun.com)"<\/font> -f<\/font> $UserAgent, \n         $(if<\/font>($Host.Version){$Host.Version}else<\/font>{"1.0"<\/font>}),\n         [Environment]::Version,\n         [Environment]::OSVersion.ToString().Replace("Microsoft Windows "<\/font>, "Win"<\/font>)\n      )\n\n   $Cookies = New-Object<\/font> System.Net.CookieContainer\n   if<\/font>($SessionVariableName) {\n      $Cookies = Get-Variable<\/font> $SessionVariableName -Scope 1 \n   }\n   $request.CookieContainer = $Cookies\n   if<\/font>($SessionVariableName) {\n      Set-Variable<\/font> $SessionVariableName -Scope 1 -Value $Cookies\n   }\n\n   try<\/font> {\n      $res = $request.GetResponse();\n   } catch<\/font> [System.Net.WebException] { \n      Write-Error<\/font> $_.Exception -Category ResourceUnavailable\n      return<\/font>\n   } catch<\/font> {\n      Write-Error<\/font> $_.Exception -Category NotImplemented\n      return<\/font>\n   }\n\n   if<\/font>((Test-Path<\/font> variable:res) -and<\/font> $res.StatusCode -eq<\/font> 200) {\n      if<\/font>($fileName -and<\/font> !(Split-Path<\/font> $fileName)) {\n         $fileName = Join-Path<\/font> (Convert-Path<\/font> (Get-Location<\/font> -PSProvider "FileSystem"<\/font>)) $fileName\n      }\n      elseif<\/font>((!$Passthru -and<\/font> !$fileName) -or<\/font> ($fileName -and<\/font> (Test-Path<\/font> -PathType "Container"<\/font> $fileName)))\n      {\n         [string<\/font>]$fileName = ([regex]'&#40;?i)filename=(.*)$').Match( $res.Headers["Content-Disposition"] ).Groups[1].Value<\/font>\n         $fileName = $fileName.trim("&#92;\/""'")<\/font>\n\n         $ofs = ""<\/font>\n         $fileName = [Regex]::Replace($fileName, "[$([Regex]::Escape("<\/font>"$([System.IO.Path]::GetInvalidPathChars())$([IO.Path]::AltDirectorySeparatorChar)$([IO.Path]::DirectorySeparatorChar)"<\/font>"))]"<\/font>, "_"<\/font>)\n         $ofs = " "<\/font>\n\n         if<\/font>(!$fileName) {\n            $fileName = $res.ResponseUri.Segments[-1]\n            $fileName = $fileName.trim("\\\/"<\/font>)\n            if<\/font>(!$fileName) { \n               $fileName = Read-Host<\/font> "Please provide a file name"<\/font>\n            }\n            $fileName = $fileName.trim("\\\/"<\/font>)\n            if<\/font>(!([IO.FileInfo]$fileName).Extension) {\n               $fileName = $fileName + "."<\/font> + $res.ContentType.Split(";"<\/font>)[0].Split("\/"<\/font>)[1]\n            }\n         }\n         $fileName = Join-Path<\/font> (Convert-Path<\/font> (Get-Location<\/font> -PSProvider "FileSystem"<\/font>)) $fileName\n      }\n      if<\/font>($Passthru) {\n         $encoding = [System.Text.Encoding]::GetEncoding( $res.CharacterSet )\n         [string<\/font>]$output = ""<\/font>\n      }\n\n      [int<\/font>]$goal = $res.ContentLength\n      $reader = $res.GetResponseStream()\n      if<\/font>($fileName) {\n         try<\/font> {\n            $writer = new-object<\/font> System.IO.FileStream $fileName, "Create"<\/font>\n         } catch<\/font> {\n            Write-Error<\/font> $_.Exception -Category WriteError\n            return<\/font>\n         }\n      }\n      [byte[]]$buffer = new-object<\/font> byte[] 4096\n      [int<\/font>]$total = [int<\/font>]$count = 0\n      do<\/font>\n      {\n         $count = $reader.Read($buffer, 0, $buffer.Length);\n         if<\/font>($fileName) {\n            $writer.Write<\/font>($buffer, 0, $count);\n         } \n         if<\/font>($Passthru){\n            $output += $encoding.GetString($buffer,0,$count)\n         } elseif<\/font>(!$quiet) {\n            $total += $count\n            if<\/font>($goal -gt<\/font> 0) {\n               Write-Progress<\/font> "Downloading $Uri"<\/font> "Saving $total of $goal"<\/font> -id 0 -percentComplete (($total\/$goal)*100)\n            } else<\/font> {\n               Write-Progress<\/font> "Downloading $Uri"<\/font> "Saving $total bytes..."<\/font> -id 0\n            }\n         }\n      } while<\/font> ($count -gt<\/font> 0)\n\n      $reader.Close()\n      if<\/font>($fileName) {\n         $writer.Flush()\n         $writer.Close()\n      }\n      if<\/font>($Passthru){\n         $output\n      }\n   }\n   if<\/font>(Test-Path<\/font> variable:res) { $res.Close(); }\n   if<\/font>($fileName) {\n      ls<\/font> $fileName\n   }\n}<\/pre>\n
\u8c03\u7528\u65b9\u6cd5\uff0c\u5982\u4e0b\uff1a<\/p>\n
Get-WebFile http:\/\/mirrors.cnnic.cn\/apache\/couchdb\/binary\/win\/1.4.0\/setup-couchdb-1.4.0_R16B01.exe<\/a><\/p>\n
\u8fd9\u91cc\u4e0b\u8f7dcouchdb\u7684\u6700\u65b0windows\u5b89\u88c5\u5305\u3002<\/p>\n
\u6267\u884c\u6548\u679c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n
\"image\" <\/p>\n
\u80fd\u591f\u770b\u5230\u5728\u4e0b\u8f7d\u6587\u4ef6\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u663e\u793a\u5f53\u524d\u5df2\u4e0b\u8f7d\u6570\u548c\u603b\u7684\u6587\u4ef6\u5927\u5c0f\uff0c\u5e76\u4e14\u6709\u8fdb\u5ea6\u6761\u663e\u793a\u5f53\u524d\u4e0b\u8f7d\u7684\u8fdb\u5ea6\uff0c\u8ddfwget\u770b\u8d77\u6765\u662f\u6709\u4e9b\u795e\u4f3c\u4e86\u3002\u4e0b\u8f7d\u5b8c\u6bd5\u540e\u4f1a\u663e\u793a\u5df2\u7ecf\u4e0b\u8f7d\u6587\u4ef6\u7684\u60c5\u51b5\u3002<\/p>\n
\"image\"<\/p>\n
\u4f5c\u8005: \u4ed8\u6d77\u519b
\n  
\u7248\u6743\uff1a\u672c\u6587\u7248\u6743\u5f52\u4f5c\u8005\u6240\u6709<\/p>\n
\u8f6c\u8f7d\uff1a\u6b22\u8fce\u8f6c\u8f7d\uff0c\u4e3a\u4e86\u4fdd\u5b58\u4f5c\u8005\u7684\u521b\u4f5c\u70ed\u60c5\uff0c\u8bf7\u6309\u8981\u6c42\u3010\u8f6c\u8f7d\u3011\uff0c\u8c22\u8c22<\/p>\n
\u8981\u6c42\uff1a\u672a\u7ecf\u4f5c\u8005\u540c\u610f\uff0c\u5fc5\u987b\u4fdd\u7559\u6b64\u6bb5\u58f0\u660e\uff1b\u5fc5\u987b\u5728\u6587\u7ae0\u4e2d\u7ed9\u51fa\u539f\u6587\u8fde\u63a5\u4e14\u4fdd\u8bc1\u5185\u5bb9\u5b8c\u6574!\u5426\u5219\u5fc5\u7a76\u6cd5\u5f8b\u8d23\u4efb!<\/p>\n
\u4e2a\u4eba\u7f51\u7ad9: http:\/\/www.fuhaijun.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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