bill

Yavsc/AuthorizationServer/GoogleHelper.cs

@@ -0,0 +1,125 @@
+
+
+using System;
+using Newtonsoft.Json.Linq;
+/// <summary>
+/// Contains static methods that allow to extract user's information from a <see cref="JObject"/>
+/// instance retrieved from Google after a successful authentication process.
+/// </summary>
+public static class GoogleHelper
+    {
+        /// <summary>
+        /// Gets the Google user ID.
+        /// </summary>
+        public static string GetId(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return user.Value<string>("id");
+        }
+
+        /// <summary>
+        /// Gets the user's name.
+        /// </summary>
+        public static string GetName(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return user.Value<string>("displayName");
+        }
+
+        /// <summary>
+        /// Gets the user's given name.
+        /// </summary>
+        public static string GetGivenName(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return TryGetValue(user, "name", "givenName");
+        }
+
+        /// <summary>
+        /// Gets the user's family name.
+        /// </summary>
+        public static string GetFamilyName(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return TryGetValue(user, "name", "familyName");
+        }
+
+        /// <summary>
+        /// Gets the user's profile link.
+        /// </summary>
+        public static string GetProfile(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return user.Value<string>("url");
+        }
+
+        /// <summary>
+        /// Gets the user's email.
+        /// </summary>
+        public static string GetEmail(JObject user)
+        {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
+            return TryGetFirstValue(user, "emails", "value");
+        }
+
+        // Get the given subProperty from a property.
+        private static string TryGetValue(JObject user, string propertyName, string subProperty)
+        {
+            JToken value;
+            if (user.TryGetValue(propertyName, out value))
+            {
+                var subObject = JObject.Parse(value.ToString());
+                if (subObject != null && subObject.TryGetValue(subProperty, out value))
+                {
+                    return value.ToString();
+                }
+            }
+            return null;
+        }
+
+        // Get the given subProperty from a list property.
+        private static string TryGetFirstValue(JObject user, string propertyName, string subProperty)
+        {
+            JToken value;
+            if (user.TryGetValue(propertyName, out value))
+            {
+                var array = JArray.Parse(value.ToString());
+                if (array != null && array.Count > 0)
+                {
+                    var subObject = JObject.Parse(array.First.ToString());
+                    if (subObject != null)
+                    {
+                        if (subObject.TryGetValue(subProperty, out value))
+                        {
+                            return value.ToString();
+                        }
+                    }
+                }
+            }
+            return null;
+        }
+    }