[New Feature] - Get-PnPTenantInfo - to get tenant info of any tenant

CHANGELOG.md

@@ -27,6 +27,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added `Get-PnPFlowOwner` cmdlet which allows retrieving the owners of a Power Automate flow [#3314](https://github.com/pnp/powershell/pull/3314)
 - Added `-AvailableForTagging` to `Set-PnPTerm` which allows the available for tagging property on a Term to be set [#3321](https://github.com/pnp/powershell/pull/3321)
 - Added `Get-PnPPowerPlatformConnector` cmdlet which allows for all custom connectors to be retrieved [#3309](https://github.com/pnp/powershell/pull/3309)
+- Added `Get-PnPTenantInfo` which allows retrieving tenant information by its Id or domain name [#3414](https://github.com/pnp/powershell/pull/3414)
 - Added option to create a Microsft 365 Group with dynamic membership by passing in `-DynamicMembershipRule`
 
 ### Fixed

documentation/Get-PnPTenantInfo.md

@@ -0,0 +1,126 @@
+---
+Module Name: PnP.PowerShell
+title: Get-PnPTenantInfo
+schema: 2.0.0
+applicable: SharePoint Online
+external help file: PnP.PowerShell.dll-Help.xml
+online version: https://pnp.github.io/powershell/cmdlets/Get-PnPTenantInfo.html
+---
+
+# Get-PnPTenantInfo
+
+## SYNOPSIS
+Gets information about any tenant
+
+## SYNTAX
+
+### Current Tenant (default)
+```powershell
+Get-PnPTenantInfo [-Verbose]
+```
+
+### By TenantId
+```powershell
+Get-PnPTenantInfo -TenantId <String> [-Verbose]
+```
+
+### By Domain Name
+```powershell
+Get-PnPTenantInfo -DomainName <String> [-Verbose]
+```
+
+## DESCRIPTION
+
+Gets the tenantId, federation brand name, company name and default domain name regarding a specific tenant. If no Domain name or Tenant id is specified, it returns the Tenant Info of the currently connected to tenant.
+
+## EXAMPLES
+
+### EXAMPLE 1
+```powershell
+Get-PnPTenantInfo -TenantId "e65b162c-6f87-4eb1-a24e-1b37d3504663"
+```
+
+Returns the tenant information of the specified TenantId.
+
+### EXAMPLE 2
+```powershell
+Get-PnPTenantInfo -DomainName "contoso.com"
+```
+
+Returns the Tenant Information for the tenant connected to the domain contoso.com.
+
+### EXAMPLE 3
+```powershell
+Get-PnPTenantInfo
+```
+
+Returns Tenant Information of the currently connected to tenant.
+
+### EXAMPLE 4
+```powershell
+Get-PnPTenantInfo -CurrentTenant
+```
+
+Returns Tenant Information of the currently connected to tenant.
+
+## PARAMETERS
+
+### -CurrentTenant
+Gets the Tenant Information of the currently connected to tenant.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: GETINFOOFCURRENTTENANT
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -DomainName
+The Domain name of the tenant to lookup. You can use the onmicrosoft.com domain name such as "contoso.onmicrosoft.com" or use any domain that is connected to the tenant, i.e. "contoso.com".
+
+```yaml
+Type: String
+Parameter Sets: GETINFOBYTDOMAINNAME
+
+Required: False
+Position: Named
+Default value: Production
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -TenantId
+The id of the tenant to retrieve the information about
+
+```yaml
+Type: String
+Parameter Sets: GETINFOBYTENANTID
+
+Required: true
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -Verbose
+When provided, additional debug statements will be shown while executing the cmdlet.
+
+```yaml
+Type: SwitchParameter
+Parameter Sets: (All)
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+## RELATED LINKS
+
+[Microsoft 365 Patterns and Practices](https://aka.ms/m365pnp)

src/Commands/Admin/GetTenantInfo.cs

@@ -0,0 +1,69 @@
+using Microsoft.SharePoint.Client;
+using PnP.PowerShell.Commands.Base;
+using PnP.PowerShell.Commands.Utilities.REST;
+using System;
+using System.Management.Automation;
+
+namespace PnP.PowerShell.Commands.Admin
+{
+    [Cmdlet(VerbsCommon.Get, "PnPTenantInfo")]
+    [OutputType(typeof(Model.TenantInfo))]
+    public class GetTenantInfo : PnPAdminCmdlet
+    {
+        private const string GETINFOBYTDOMAINNAME = "By Domain Name";
+        private const string GETINFOBYTENANTID = "By TenantId";
+        private const string GETINFOOFCURRENTTENANT = "Current Tenant";
+
+        [Parameter(Mandatory = false, ParameterSetName = GETINFOOFCURRENTTENANT)]
+        public SwitchParameter CurrentTenant;
+
+        [Parameter(Mandatory = true, ParameterSetName = GETINFOBYTDOMAINNAME)]
+        public string DomainName;
+
+        [Parameter(Mandatory = true, ParameterSetName = GETINFOBYTENANTID)]
+        public string TenantId;
+
+        protected override void ExecuteCmdlet()
+        {
+            if ((ParameterSetName == GETINFOBYTDOMAINNAME && TenantId != null) || (ParameterSetName == GETINFOBYTENANTID && DomainName != null))
+            {
+                throw new PSArgumentException("Specify either DomainName or TenantId, but not both.");
+            }
+
+            WriteVerbose("Acquiring access token for Microsoft Graph to look up Tenant");
+            var graphAccessToken = TokenHandler.GetAccessToken(this, $"https://{Connection.GraphEndPoint}/.default", Connection);
+            var requestUrl = BuildRequestUrl();
+
+            WriteVerbose($"Making call to {requestUrl} to request tenant information");
+            var results = RestHelper.GetAsync<Model.TenantInfo>(Connection.HttpClient, requestUrl, graphAccessToken).GetAwaiter().GetResult();
+            WriteObject(results, true);
+        }
+
+        private string BuildRequestUrl()
+        {
+            var baseUrl = $"https://{Connection.GraphEndPoint}/v1.0/tenantRelationships/";
+            var query = string.Empty;
+            switch (ParameterSetName)
+            {
+                case GETINFOBYTDOMAINNAME:
+                    query = $"microsoft.graph.findTenantInformationByDomainName(domainName='{DomainName}')";
+                    break;
+                case GETINFOBYTENANTID:
+                    query = $"microsoft.graph.findTenantInformationByTenantId(tenantId='{TenantId}')";
+                    break;
+                case GETINFOOFCURRENTTENANT:
+                    if (Connection != null)
+                    {
+                        string tenantId = TenantExtensions.GetTenantIdByUrl(Connection.Url, Connection.AzureEnvironment).ToString();
+                        query = $"microsoft.graph.findTenantInformationByTenantId(tenantId='{tenantId}')";
+                    }
+                    else
+                    {
+                        throw new InvalidOperationException($"The current connection holds no SharePoint context. Please use one of the Connect-PnPOnline commands which uses the -Url argument to connect.");
+                    }
+                    break;
+            }
+            return baseUrl + query;
+        }
+    }
+}

src/Commands/Model/TenantInfo.cs

@@ -0,0 +1,30 @@
+using System;
+
+namespace PnP.PowerShell.Commands.Model
+{
+    /// <summary>
+    /// Contains information regarding a tenant
+    /// </summary>
+    public class TenantInfo
+    {
+        /// <summary>
+        /// Unique identifier of the tenant
+        /// </summary>
+        public Guid? TenantId { get; set; }
+
+        /// <summary>
+        /// The name of the string value shown to users when signing in to Entra ID
+        /// </summary>
+        public string FederationBrandName { get; set; }
+
+        /// <summary>
+        /// The company name shown in places such as the admin portal
+        /// </summary>
+        public string DisplayName { get; set; }
+
+        /// <summary>
+        /// The default domain name set on the tenant
+        /// </summary>
+        public string DefaultDomainName { get; set; }
+    }
+}