Update: Disco Online Services Update Checking

Migrates Disco Update checking to new services at https://services.discoict.com.au.
2014-07-23 19:14:08 +10:00
parent 4b3905b4fc
commit 6700d092b3
31 changed files with 621 additions and 523 deletions
@@ -0,0 +1,88 @@
+using Disco.Services.Interop.DiscoServices;
+using System;
+using System.IO;
+using System.Net;
+using System.Xml.Linq;
+
+namespace Disco.Services.Interop.VicEduDept
+{
+    public class VicSmart
+    {
+
+        /// <summary>
+        /// Queries DoE VicSmart Service to detect the current site.
+        /// </summary>
+        /// <returns>A Tuple where Item1 is the Site Number and Item2 is the Site Name</returns>
+        public static Tuple<string, string> WhoAmI()
+        {
+            // DnsQuery for broadband.doe.wan
+            IPHostEntry doeWanDnsEntry;
+            try
+            {
+                doeWanDnsEntry = Dns.GetHostEntry("broadband.doe.wan");
+            }
+            catch (Exception)
+            { return null; } // Fail on error
+
+            // Try using IPSearch feature
+            XDocument doeWanIPSearchResult = TryIPWhoAmISearch(false);
+            if (doeWanIPSearchResult == null)
+                doeWanIPSearchResult = TryIPWhoAmISearch(true);
+
+            if (doeWanIPSearchResult == null)
+                return null;
+
+            try
+            {
+                var site = doeWanIPSearchResult.Element("resultset").Element("site");
+                var siteNumber = site.Element("number").Value.ToLower();
+                var siteName = site.Element("name").Value.ToLower();
+
+                return Tuple.Create(siteNumber, siteName);
+            }
+            catch (Exception)
+            { return null; } // Fail on error
+        }
+
+        private static XDocument TryIPWhoAmISearch(bool useProxy)
+        {
+            try
+            {
+                var DiscoBIVersion = UpdateQuery.CurrentDiscoVersionFormatted();
+
+                HttpWebRequest wReq = (HttpWebRequest)HttpWebRequest.Create("http://broadband.doe.wan/ipsearch/showresult.php");
+
+                // Fix for Proxy Servers which don't support KeepAlive
+                wReq.KeepAlive = false;
+
+                if (!useProxy)
+                    wReq.Proxy = new WebProxy(); // Empty Proxy Config
+                wReq.Method = WebRequestMethods.Http.Post;
+                wReq.ContentType = "application/x-www-form-urlencoded";
+                wReq.UserAgent = string.Format("Disco/{0}", DiscoBIVersion);
+                using (var wrStream = wReq.GetRequestStream())
+                {
+                    using (var wrStreamWriter = new StreamWriter(wrStream))
+                    {
+                        wrStreamWriter.Write("mode=whoami");
+                    }
+                }
+                using (HttpWebResponse wRes = (HttpWebResponse)wReq.GetResponse())
+                {
+                    if (wRes.StatusCode == HttpStatusCode.OK)
+                    {
+                        using (var wResStream = wRes.GetResponseStream())
+                        {
+                            return XDocument.Load(wResStream);
+                        }
+                    }
+                    else
+                        return null;
+                }
+            }
+            catch (Exception)
+            { return null; } // Fail on error
+        }
+
+    }
+}