Find embedded media (embeds and iframes) in Umbraco that are not using a protocol relative url.

FindEmbeddedMediaInUmbraco.ps1

Function Get-EmbeddedCount {
    Param([string]$path)

    $embedded = @{}

    Get-ChildItem $path | ForEach-Object {
        [xml]$cache = Get-Content $_.FullName
        $regex = "<(?<tag>iframe|embed|param)(?<space>[\S\s-[>]]*?)(?<attr>src|value)=`"(?<protocol>http:)(?<url>//(.)*?)`"(?<therest>[\S\s-[>]]*?)>"
        $xpath = "//bodyText"
        $nodes = $cache.SelectNodes($xpath) | Where-Object { $_.InnerText -match $regex }

        If($nodes.Count) {
            $embedded[$_.FullName] = $nodes | ForEach-Object {, $_.ParentNode.Attributes["id"].Value}
        }
    }

    return $embedded
}

Function Get-FormattedEmbeddedCount {
    Param([string]$path)

    $p1=@{label="Path";Expression={$_.name};}
    $p2=@{label="Embed Count";Expression={$_.value.Count};}
    $p3=@{label="Nodes";Expression={$_.value -join ", "};}

    Get-EmbeddedCount $path | Format-Table $p1,$p2,$p3 -AutoSize
}

Function Update-EmbeddedContent {
    Param([string]$path)

    $web = New-Object Net.WebClient
    $embedded = Get-EmbeddedCount $path
    $embedded.Keys | ForEach-Object {
        $item = Get-ChildItem $_ 
        $site = $item.Directory.Parent

        Copy-Item FixEmbeddedContent.cs (Join-Path $site.FullName "App_Code")

        $base = $site.Name
        $embedded.Item($_) | ForEach-Object {
            $url = "http://$base/base/EmbeddedContent/Fix/$_"
            Try {
                $response = $web.DownloadString($url)
                
                If ($response -eq "<value>True</value>") {
                    Write-Host "Success - $url"
                }
                Else {
                    Write-Warning "Failure - $url"
                }
            }
            Catch {
                Write-Warning "Failure - $url"
            }
        }
    }
}

#Get-FormattedEmbeddedCount c:\inetpub\*\App_Data\umbraco.config
#Update-EmbeddedContent c:\inetpub\*\App_Data\umbraco.config

FixEmbeddedContent.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using umbraco.BusinessLogic;
using umbraco.cms.businesslogic.web;
using umbraco.presentation.umbracobase;

[RestExtension("EmbeddedContent")]
public class EmbeddedContent
{
    [RestExtensionMethod]
    public static string Fix(int nodeId)
    {
        bool @fixed = false;
        var document = new Document(nodeId);
        var bodyText = document.getProperty("bodyText");

        if (bodyText != null)
        {
            string regex = "<(?<tag>iframe|embed|param)(?<space>[\\S\\s-[>]]*?)(?<attr>src|value)=\"(?<protocol>http:)(?<url>//(.)*?)\"(?<therest>[\\S\\s-[>]]*?)>";

            if (Regex.IsMatch(bodyText.Value.ToString(), regex))
            {
                bodyText.Value = Regex.Replace(bodyText.Value.ToString(), regex, "<${tag}${space}${attr}=\"${url}\"${therest}>");
                document.Publish(User.GetUser(0));
                umbraco.library.UpdateDocumentCache(document.Id);
                umbraco.library.RefreshContent();
                @fixed = true;
            }
        }

        return @fixed.ToString();
    }
}