/// <summary>
/// Gets the version of SharePoint
/// </summary>
/// <param name="clientContext"></param>
/// <returns></returns>
public static SPVersion GetVersion(ClientRuntimeContext clientContext)
{
Uri urlUri = new Uri(clientContext.Url);
var spVersionFromCache = CacheManager.Instance.GetSharePointVersion(urlUri);
if (spVersionFromCache != SPVersion.Unknown)
{
return(spVersionFromCache);
}
else
{
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create($"{urlUri.Scheme}://{urlUri.DnsSafeHost}:{urlUri.Port}/_vti_pvt/service.cnf");
//request.Credentials = clientContext.Credentials;
request.AddAuthenticationData(clientContext as ClientContext);
var response = request.GetResponse();
using (var dataStream = response.GetResponseStream())
{
// Open the stream using a StreamReader for easy access.
using (System.IO.StreamReader reader = new System.IO.StreamReader(dataStream))
{
// Read the content.Will be in this format
// SPO:
// vti_encoding: SR | utf8 - nl
// vti_extenderversion: SR | 16.0.0.8929
// SP2019:
// vti_encoding:SR|utf8-nl
// vti_extenderversion:SR|16.0.0.10340
// SP2016:
// vti_encoding: SR | utf8 - nl
// vti_extenderversion: SR | 16.0.0.4732
// SP2013:
// vti_encoding:SR|utf8-nl
// vti_extenderversion: SR | 15.0.0.4505
// Version numbers from https://buildnumbers.wordpress.com/sharepoint/
// Microsoft Developer Blog -
// https://developer.microsoft.com/en-us/sharepoint/blogs/updated-versions-of-the-sharepoint-on-premises-csom-nuget-packages/
// Todd Klindt's Blog -
// http://www.toddklindt.com/sp2010builds
// http://www.toddklindt.com/sp2013builds
// http://www.toddklindt.com/sp2016builds
// http://www.toddklindt.com/sp2019builds
string version = reader.ReadToEnd().Split('|')[2].Trim();
CacheManager.Instance.SetExactSharePointVersion(urlUri, version);
if (Version.TryParse(version, out Version v))
{
if (v.Major == 14)
{
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SP2010);
return(SPVersion.SP2010);
}
else if (v.Major == 15)
{
// You can change the output to SP2013 to use standard CSOM calls.
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SP2013Legacy);
return(SPVersion.SP2013Legacy);
}
else if (v.Major == 16)
{
if (v.MinorRevision < 6000)
{
//if(v.MinorRevision < 4690)
//{
// // Pre May 2018 CU
// CacheManager.Instance.SharepointVersions.TryAdd(urlUri, SPVersion.SP2016Legacy);
// return SPVersion.SP2016Legacy;
//}
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SP2016Legacy);
return(SPVersion.SP2016Legacy);
}
// Set to 12000 because some SPO reports as 12012 and SP2019 build numbers are increasing very slowly
else if (v.MinorRevision > 10300 && v.MinorRevision < 12000)
{
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SP2019);
return(SPVersion.SP2019);
}
else
{
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SPO);
return(SPVersion.SPO);
}
}
}
}
}
}
catch (WebException ex)
{
// todo
}
}
CacheManager.Instance.SetSharePointVersion(urlUri, SPVersion.SPO);
return(SPVersion.SPO);
}
