Merge branch 'v14/dev' into v15/dev

# Conflicts:
#	src/Umbraco.Infrastructure/Runtime/FileSystemMainDomLock.cs
#	src/Umbraco.Web.Common/Views/UmbracoViewPage.cs

src/Umbraco.Web.Common/Extensions/HttpContextExtensions.cs

@@ -62,9 +62,16 @@ public static class HttpContextExtensions
         // Update the HttpContext's user with the authenticated user's principal to ensure
         // that subsequent requests within the same context will recognize the user
         // as authenticated.
-        if (result.Succeeded)
+        if (result is { Succeeded: true, Principal.Identity: not null })
         {
-            httpContext.User = result.Principal;
+            // We need to get existing identities that are not the backoffice kind and flow them to the new identity
+            // Otherwise we can't log in as both a member and a backoffice user
+            // For instance if you've enabled basic auth.
+            ClaimsPrincipal? authenticatedPrincipal = result.Principal;
+            IEnumerable<ClaimsIdentity> existingIdentities = httpContext.User.Identities.Where(x => x.IsAuthenticated && x.AuthenticationType != authenticatedPrincipal.Identity.AuthenticationType);
+            authenticatedPrincipal.AddIdentities(existingIdentities);
+
+            httpContext.User = authenticatedPrincipal;
         }
 
         return result;

src/Umbraco.Web.Common/Extensions/MemberClaimsPrincipalExtensions.cs

@@ -0,0 +1,18 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Identity;
+
+namespace Umbraco.Extensions;
+
+public static class MemberClaimsPrincipalExtensions
+{
+    /// <summary>
+    /// Tries to get specifically the member identity from the ClaimsPrincipal
+    /// </summary>
+    /// <remarks>
+    /// The identity returned is the one with default authentication type.
+    /// </remarks>
+    /// <param name="principal">The principal to find the identity in.</param>
+    /// <returns>The default authenticated authentication type identity.</returns>
+    public static ClaimsIdentity? GetMemberIdentity(this ClaimsPrincipal principal)
+        => principal.Identities.FirstOrDefault(x => x.AuthenticationType == IdentityConstants.ApplicationScheme);
+}

src/Umbraco.Web.Common/Security/ConfigureMemberIdentityOptions.cs

@@ -24,7 +24,7 @@ public sealed class ConfigureMemberIdentityOptions : IConfigureOptions<IdentityO
         options.SignIn.RequireConfirmedEmail = false; // not implemented
         options.SignIn.RequireConfirmedPhoneNumber = false; // not implemented
 
-        options.User.RequireUniqueEmail = true;
+        options.User.RequireUniqueEmail = _securitySettings.MemberRequireUniqueEmail;
 
         // Support validation of member names using Down-Level Logon Name format
         options.User.AllowedUserNameCharacters = _securitySettings.AllowedUserNameCharacters;

src/Umbraco.Web.Common/Security/MemberManager.cs

@@ -1,4 +1,5 @@
 using System.Globalization;
+using System.Security.Claims;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.Extensions.Logging;
@@ -113,8 +114,11 @@ public class MemberManager : UmbracoUserManager<MemberIdentityUser, MemberPasswo
     /// <inheritdoc />
     public virtual bool IsLoggedIn()
     {
-        HttpContext? httpContext = _httpContextAccessor.HttpContext;
-        return httpContext?.User.Identity?.IsAuthenticated ?? false;
+        // We have to try and specifically find the member identity, it's entirely possible for there to be both backoffice and member.
+        ClaimsIdentity? memberIdentity = _httpContextAccessor.HttpContext?.User.GetMemberIdentity();
+
+        return memberIdentity is not null &&
+               memberIdentity.IsAuthenticated;
     }
 
     /// <inheritdoc />
@@ -170,23 +174,27 @@ public class MemberManager : UmbracoUserManager<MemberIdentityUser, MemberPasswo
     /// <inheritdoc />
     public virtual async Task<MemberIdentityUser?> GetCurrentMemberAsync()
     {
-        if (_currentMember == null)
+        if (_currentMember is not null)
         {
-            if (!IsLoggedIn())
-            {
-                return null;
-            }
-
-            _currentMember = await GetUserAsync(_httpContextAccessor.HttpContext?.User!);
+            return _currentMember;
         }
 
+        if (IsLoggedIn() is false)
+        {
+            return null;
+        }
+
+        // Create a principal the represents the member security context.
+        var memberPrincipal = new ClaimsPrincipal(_httpContextAccessor.HttpContext?.User.GetMemberIdentity()!);
+        _currentMember = await GetUserAsync(memberPrincipal);
+
         return _currentMember;
     }
 
     public virtual IPublishedContent? AsPublishedMember(MemberIdentityUser user) => _store.GetPublishedMember(user);
 
     /// <summary>
-    ///     This will check if the member has access to this path
+    /// This will check if the member has access to this path.
     /// </summary>
     /// <param name="path"></param>
     /// <returns></returns>