Get the Alerts – SharePoint PowerShell

In this article, we will see, how to retrieve the Alerts from the SharePoint WebApplication using PowerShell.

 ######################### this method will return the Alerts in the WebApplication
 
 function GetAlerts()
 {
     Write-Host "Entered GetAlerts Method" -ForegroundColor Yellow 
     Add-Content "$ProgressFile" "Entered GetAlerts Method"
     $script:Progress = "6:Entered"
     
     # Get WebApplication Object
     $WebApplication = Get-SPWebApplication $Config.Configuration.WebApplication.URL
 
     # Assign the XML Output File Paths
     $Alerts_XML_Path = $scriptBase + "Reports-$LogTimeAlerts.xml"
     
     # Create the XML File Tags
     
     $xmlWriter = New-Object System.XMl.XmlTextWriter($Alerts_XML_Path,$Null)
     $xmlWriter.Formatting = 'Indented'
     $xmlWriter.Indentation = 1
     $XmlWriter.IndentChar = "`t"
     $xmlWriter.WriteStartDocument()
     $xmlWriter.WriteComment('Files List On the WebApplication ' + $WebApplication.DisplayName)
     $xmlWriter.WriteStartElement('WebApplication')
     $xmlWriter.WriteEndElement()
     $xmlWriter.WriteEndDocument()
     $xmlWriter.Flush()
     $xmlWriter.Close()
     
     # Get All the Site collections
     $SiteCollections =  $WebApplication | Get-SPSite -Limit All
     #$SiteCollections =  Get-SPSite "http://ctsc00556722901:5555/sites/TeamSite2/"
     
     # write the output on XML File
     $xmlDoc = [System.Xml.XmlDocument](Get-Content $Alerts_XML_Path);
     $siteCollectionNode = $xmlDoc.CreateElement("SiteCollections")
     $xmlDoc.SelectSingleNode("//WebApplication").AppendChild($siteCollectionNode)
     $xmlDoc.Save($Alerts_XML_Path)
     
     # Iterate through the SiteCollections
     foreach($SiteCollection in $SiteCollections)
     {
         $siteCollectionName = $SiteCollection | select @{label = "Title";Ex = {$_.rootweb.Title}} 
         
         # write the output on XML File
         
         $xmlDoc = [System.Xml.XmlDocument](Get-Content $Alerts_XML_Path);
         $siteCollectionNode = $xmlDoc.CreateElement("SiteCollection")
         $xmlDoc.SelectSingleNode("//WebApplication/SiteCollections").AppendChild($siteCollectionNode)
         $siteCollectionNode.SetAttribute("Name", $siteCollectionName.Title)
         
         
         $subSitesNode = $siteCollectionNode.AppendChild($xmlDoc.CreateElement("SubSites"));
         $xmlDoc.Save($Alerts_XML_Path)
         
         # Get the Webs
         $Webs = Get-SPWeb -site $SiteCollection -Limit All 
         
         # Iterate through the Webs
         foreach($Web in $Webs)
         {
             # write the output on XML File
             
             $subSiteNameNode = $subSitesNode.AppendChild($xmlDoc.CreateElement("SubSite"));
             $subSiteNameNode.SetAttribute("Name", $Web.Title)
             $subSiteNameNode.SetAttribute("Url", $Web.Url)
             $subSiteNameNode.SetAttribute("WebID", $Web.Id)
             
             $parentWebTitle = ""
                             
             if($Web.ParentWebID -ne "00000000-0000-0000-0000-000000000000")
             {
                 $parentWeb = $SiteCollection.OpenWeb($Web.ParentWebID)
                 $parentWebTitle = $parentWeb.Title
                 
             }
             else
             {
                 $parentWebTitle = "RootWeb"
             }    
             $subSiteNameNode.SetAttribute("ParentWebName", $parentWebTitle)
             $subSiteNameNode.SetAttribute("ParentWebID", $Web.ParentWebID)
             
             $AlertsNode = $subSiteNameNode.AppendChild($xmlDoc.CreateElement("Alerts"));
             
             $xmlDoc.Save($Alerts_XML_Path)
             
             # Iterate through the Users
             foreach ($user in $Web.SiteUsers)
             {
                 # Get the User Alerts and Iterate
                 foreach($alert in $user.Alerts)
                 {
                     $AlertNode = $AlertsNode.AppendChild($xmlDoc.CreateElement("Alert"));
                     $AlertNode.SetAttribute("Name", $alert.Title)
                     $AlertNode.SetAttribute("List", $alert.List)
                     $AlertNode.SetAttribute("AssociatedUser", $user.LoginName)
                     $AlertNode.SetAttribute("AlertFerequency", $alert.AlertFrequency)
                     $AlertNode.SetAttribute("AlertType", $alert.AlertType)		
                                                                             
                     $xmlDoc.Save($Alerts_XML_Path)
                 }
             }
         }
     }    
     # write the output on XML File
     $xmlDoc.Save($Alerts_XML_Path)
     
     Write-Host "Completed GetAlerts Method" -ForegroundColor Yellow 
     Add-Content "$ProgressFile" "Completed GetAlerts Method"
     $script:Progress = "6:Success"
 }
 
 ########### End of Method #################
 
 

The snippet is self-explanatory.

Happy Coding,

Sathish Nadarajan.