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Fix: Disable HTTP KeepAlive

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To improve support for proxy servers which do not support this
optimisation.
See:
http://discoict.com.au/forum/support/2013/2/connection-issues,-lwt,-updates-etc.aspx
This commit is contained in:
Gary Sharp
2013-02-08 12:32:54 +11:00
parent 8089544dab
commit eb03365513
7 changed files with 684 additions and 655 deletions
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Disco.Web/Models/InitialConfig/CompleteModel.cs
+91 -87
View File
@@ -1,88 +1,92 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.IO;
namespace Disco.Web.Models.InitialConfig
{
public class CompleteModel
{
public Tuple<IPHostEntry, Exception> DiscoDnsTestResult { get; set; }
public Exception RegistryDatabaseResult { get; set; }
public Exception DiscoIctComAuWebResult { get; set; }
public bool LaunchAllowed
{
get
{
return (RegistryDatabaseResult == null);
}
}
public void PerformTests()
{
#region DNS for 'Disco'
try
{
// Try and Resolve 'disco'
DiscoDnsTestResult = new Tuple<IPHostEntry, Exception>(Dns.GetHostEntry("disco"), null);
}
catch (Exception ex)
{
DiscoDnsTestResult = new Tuple<IPHostEntry, Exception>(null, ex);
}
#endregion
#region Write Database to Registry
try
{
// Make Connection String Persistent
Disco.Data.Repository.DiscoDatabaseConnectionFactory.SetDiscoDataContextConnectionString(
Disco.Data.Repository.DiscoDatabaseConnectionFactory.DiscoDataContextConnectionString, true);
RegistryDatabaseResult = null;
}
catch (Exception ex)
{
RegistryDatabaseResult = ex;
}
#endregion
#region Communicate with http://discoict.com.au/
try
{
Dns.GetHostEntry("discoict.com.au");
try
{
HttpWebRequest wReq = (HttpWebRequest)HttpWebRequest.Create("http://discoict.com.au/");
wReq.Method = WebRequestMethods.Http.Get;
wReq.UserAgent = string.Format("Disco/{0} (Initial Config; Org: {1})", DiscoApplication.Version, DiscoApplication.OrganisationName);
using (HttpWebResponse wRes = (HttpWebResponse)wReq.GetResponse())
{
if (wRes.StatusCode == HttpStatusCode.OK)
{
DiscoIctComAuWebResult = null;
}
else
{
DiscoIctComAuWebResult = new Exception(string.Format("Server returned response: [{0}] {1}", wRes.StatusCode, wRes.StatusDescription));
}
}
}
catch (Exception ex)
{
DiscoIctComAuWebResult = new WebException("DNS Resolved the host 'discoict.com.au' but could not establish a connection.", ex);
}
}
catch (Exception ex)
{
DiscoIctComAuWebResult = new Exception("Could not resolve the name 'discoict.com.au'", ex);
throw;
}
#endregion
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.IO;
namespace Disco.Web.Models.InitialConfig
{
public class CompleteModel
{
public Tuple<IPHostEntry, Exception> DiscoDnsTestResult { get; set; }
public Exception RegistryDatabaseResult { get; set; }
public Exception DiscoIctComAuWebResult { get; set; }
public bool LaunchAllowed
{
get
{
return (RegistryDatabaseResult == null);
}
}
public void PerformTests()
{
#region DNS for 'Disco'
try
{
// Try and Resolve 'disco'
DiscoDnsTestResult = new Tuple<IPHostEntry, Exception>(Dns.GetHostEntry("disco"), null);
}
catch (Exception ex)
{
DiscoDnsTestResult = new Tuple<IPHostEntry, Exception>(null, ex);
}
#endregion
#region Write Database to Registry
try
{
// Make Connection String Persistent
Disco.Data.Repository.DiscoDatabaseConnectionFactory.SetDiscoDataContextConnectionString(
Disco.Data.Repository.DiscoDatabaseConnectionFactory.DiscoDataContextConnectionString, true);
RegistryDatabaseResult = null;
}
catch (Exception ex)
{
RegistryDatabaseResult = ex;
}
#endregion
#region Communicate with http://discoict.com.au/
try
{
Dns.GetHostEntry("discoict.com.au");
try
{
HttpWebRequest wReq = (HttpWebRequest)HttpWebRequest.Create("http://discoict.com.au/");
// Added: 2013-02-08 G#
// Fix for Proxy Servers which dont support KeepAlive
wReq.KeepAlive = false;
// End Added: 2013-02-08 G#
wReq.Method = WebRequestMethods.Http.Get;
wReq.UserAgent = string.Format("Disco/{0} (Initial Config; Org: {1})", DiscoApplication.Version, DiscoApplication.OrganisationName);
using (HttpWebResponse wRes = (HttpWebResponse)wReq.GetResponse())
{
if (wRes.StatusCode == HttpStatusCode.OK)
{
DiscoIctComAuWebResult = null;
}
else
{
DiscoIctComAuWebResult = new Exception(string.Format("Server returned response: [{0}] {1}", wRes.StatusCode, wRes.StatusDescription));
}
}
}
catch (Exception ex)
{
DiscoIctComAuWebResult = new WebException("DNS Resolved the host 'discoict.com.au' but could not establish a connection.", ex);
}
}
catch (Exception ex)
{
DiscoIctComAuWebResult = new Exception("Could not resolve the name 'discoict.com.au'", ex);
throw;
}
#endregion
}
}
}