Started integrating authorization services.

src/Umbraco.Core/Persistence/Repositories/Interfaces/IUserRepository.cs

@@ -5,5 +5,7 @@ namespace Umbraco.Core.Persistence.Repositories
     internal interface IUserRepository : IRepositoryQueryable<int, IUser>
     {
         IProfile GetProfileById(int id);
+        IProfile GetProfileByUserName(string username);
+        IUser GetUserByUserName(string username);
     }
 }

src/Umbraco.Core/Persistence/Repositories/UserRepository.cs

@@ -147,6 +147,39 @@ namespace Umbraco.Core.Persistence.Repositories
             return new Profile(dto.Id, dto.UserName);
         }
 
+        public IProfile GetProfileByUserName(string username)
+        {
+            var sql = GetBaseQuery(false);
+            sql.Where(GetBaseWhereClause(), new { Username = username });
+
+            var dto = Database.FirstOrDefault<UserDto>(sql);
+
+            if (dto == null)
+                return null;
+
+            return new Profile(dto.Id, dto.UserName);
+        }
+
+        public IUser GetUserByUserName(string username)
+        {
+            var sql = GetBaseQuery(false);
+            sql.Where(GetBaseWhereClause(), new { Username = username });
+
+            var dto = Database.FirstOrDefault<UserDto>(sql);
+            
+            if (dto == null)
+                return null;
+
+            return new User(_userTypeRepository.Get(dto.Type))
+                {
+                    Id = dto.Id,
+                    Email = dto.Email,
+                    Language = dto.UserLanguage,
+                    Name = dto.UserName
+                };
+
+        }
+
         #endregion
     }
 }