Category Archives: Sharepoint Online

Automation, Office 365, Powershell, Sharepoint Online

Finding files in Sharepoint Online or Teams that exceed 218 path length

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A well known issue when migrating to Office 365 (Sharepoint, Teams and Onedrive) is path length.

Recently, Microsoft increased the maximum path length in Sharepoint Online from 256 to 400 characters (total length of the URL). This causes issues when you use Office, because Office 2013, 2016 and 2019 do not support paths over 218 characters in length.*

To help you proactively identify files that exceed this limit I wrote a PowerShell script you can run:

  • it can filter based on file type
  • automatically finds and processes all sharepoint sites in your tenant
  • automatically finds and processes all team sites in your tenant
  • it can handle multi-factor authentication

Find get-filesWithLongPathsInOffice365.ps1 on GitLab

It leans heavily on the great work done by the community around OfficePnP, all credits to the community for providing so much quality code for free!

*longer paths may still work, this is not a hard limit
Office 365, OneDrive for Business, OneDriveMapper, Sharepoint Online

OnedriveMapper v3.10 released!

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Version 3.10 of OneDriveMapper has been released!

  • handle the new tile / prompt that appears in IE login mode where Microsoft no longer always redirects to the portal
  • Progress bar color is now a configurable option (cloud/non cloud)
  • alphabetic ordering of configs (cloud only)
  • Fixed auto update loop issue where auto update would break itself for subsequent updates.
  • When restarting self (switching auth mode or auto updating) properly hide the console if this was set

Important Auto Update Instructions

If you were using Auto-Update, DO NOT do so for this version. Use the MSI to replace the old version (see last fixed issue).

New Azure AD Signin experience

As some may have read, Microsoft is previewing a potentially disruptive change without advance notice. My tenants don’t yet display the new behavior so I cannot test if OnedriveMapper will be affected. I haven’t heard of any issues yet 🙂

Get the new version here

Powershell, Sharepoint Online

Auditing your Sharepoint Online site collections

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As, generally, we want to know what goes on in our environment, I like to enable Auditing wherever I can. Sharepoint is a more and more important resource where we store our data. Auditing can be very useful if files dissapear, auditors need specific information, or worse, cryptolockers rename all your files.

As setting audit logging through the interface is well documented, I wanted to share the Powershell way of doing this, assuming you’ve already installed the Sharepoint Client Components:

</p>
<p>[System.Reflection.Assembly]::LoadWithPartialName(&quot;Microsoft.SharePoint.Client&quot;) | Out-Null [System.Reflection.Assembly]::LoadWithPartialName(&quot;Microsoft.SharePoint.Client.Runtime&quot;) | Out-Null</p>
<p>$Context = New-Object Microsoft.SharePoint.Client.ClientContext(&quot;INSERT YOUR SITE URL HERE&quot;)<br />
$secPassword = ConvertTo-SecureString &quot;YOUR PASSWORD&quot; -AsPlainText -force<br />
$Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials(&quot;YOUR LOGIN&quot;,$secpassword)<br />
$Context.RequestTimeout = 16384000<br />
$Context.Credentials = $Credentials<br />
$Context.Load($Context.Web)<br />
$Context.Load($Context.Site)<br />
$Context.ExecuteQuery()</p>
<p>#set audit logging for the site collection to ALL<br />
$Context.Site.Audit.AuditFlags = &quot;All&quot;<br />
$Context.Site.Audit.Update()<br />
$Context.ExecuteQuery()</p>
<p>

Office 365, OneDrive for Business, Powershell, Sharepoint Online

O365AntiCryptoLocker, restores the previous version of your files in Sharepoint Online or Onedrive for Business

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Note: O365Undo is also free and can probably help you fix your crytolocker problem more precisely as it is the next version of O365AntiCryptoLocker

O365AntiCryptoLocker

At OGD we sometimes have to deal with users that got infected with CryptoLockers and have both automated and controlled systems in place to prevent damage or restore data to any fileshares. An infection on Sharepoint Online or Onedrive has not yet happened, but eventually it of course will and I like to fix things before they break.

As Sharepoint Online and Onedrive for Business natively use versioning on files, you basically have no real risk of losing data to Cryptolockers, your RPO (Restore Point Objective) is 0. However, restoring the previous versions of files is quite a lot of work if done manually, so your RTO (Restore Time Objective) could be weeks or more.

Unless of course, you use Powershell. I’ve written a script that will restore the most current previous version of any file in a given Document Library.

Download: O365AntiCryptoLocker

Example usage for a Onedrive site:

.\O365AntiCryptoLocker.ps1 -siteURL&nbsp;"https://o365mig-my.sharepoint.com/personal/test1_o365mig_onmicrosoft_com" -login "mylogin" -password "mypassword" -libraryTitle "Documents"

Or for a Sharepoint Online Site:

.\O365AntiCryptoLocker.ps1 -siteURL&nbsp;"https://o365mig.sharepoint.com/site1"&nbsp;-login "mylogin" -password "mypassword" -libraryTitle "Documents"

You’ll need the Sharepoint Client Components installed, and you’ll have to have sufficient permissions on the library and its files.

 

Automation, O365Migrator, Office 365, OneDrive for Business, Powershell, Sharepoint Online

O365Migrator v0.9 released!

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Version 0.9 of O365Migrator is now available as a free download.

What was changed?

  • Differential transfer: upload only changed/new files. (does not process renames, moves and deletes yet!)
  • Subfolder targeting: upload to a specific subfolder instead of the root if specified
  • Better library name detection when admin and user have different language settings

You can find the new version here.