Powershell Base64 Image Generator For Data URIs

Data URIs are gaining in popularity. There are websites that will generate the URI (like http://www.motobit.com/util/base64-decoder-encoder.asp), but requires the uploading of files to someone else server, corporate policies can make these unusable. I haven't seen one in Powershell, so I made one. The code is pretty basic.

You need to know what MIME type for the file, but they are pretty easy to discover. The most common ones I have used:

• image/gif
• image/x-icon
• image/vnd.microsoft.icon
• image/png
• image/jpeg

?

Powershell Script: Base64 Encode/Decode

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##### # #   Base64.ps1 #       Converts a file to or from base 64 # #   Useful for generating data protocol image addresses: #   In CSS: #       background: #ff url('data:image/gif;base64,<Base64String>') # #   In HTML: #       <img src="data:image/gif;base64,<Base64String>" alt="X"> # #   Usage (encode): #       .\base64.ps1 favicon.ico favicon.b64 -encode # #   Usage (encode & copy to clipboard): #       .\base64.ps1 favicon.ico -encode -SetClipboard # #   Usage (decode): #       .\base64.ps1 favicon.b64 favicon.ico -decode # # ##### param (     [string] $source = $(Throw 'source: required parameter'),     [string] $destination = "",     [switch] $encode,     [switch] $decode,     [switch] $SetClipboard )   function Main {     $file = Get-Item($source);     if ($encode)     {         $bytes = get-content -encoding byte $file.Fullname         $result = [System.Convert]::ToBase64String($bytes);         if ($SetClipboard) {Set-Clipboard $result;}         if ($destination.length -eq 0)         {             return $result;         }         else         {             set-content -encoding UTF8 -Path ".\$destination" -Value $result;         }     }     elseif ($decode)     {         $bytes = get-content -encoding UTF8 $file.Fullname;         [System.Convert]::FromBase64String($bytes) | set-content -encoding Byte -Path ".\$destination";     }     else     {         Write-Host("The encode or decode switch is required.");     } }   . Main

For more information on Data URIs, refer to RFC2397 or the Wiki page for the Data URI Scheme for examples on how to use them.