public static string[] GetSRVRecords(string needle)
{
IntPtr ptr1 = IntPtr.Zero;
IntPtr ptr2 = IntPtr.Zero;
SRVRecord recSRV;
if (Environment.OSVersion.Platform != PlatformID.Win32NT)
{
throw new NotSupportedException();
}
ArrayList list1 = new ArrayList();
try
{
int num1 = SRVLookup.DnsQuery(ref needle, QueryTypes.DNS_TYPE_SRV, QueryOptions.DNS_QUERY_BYPASS_CACHE, 0, ref ptr1, 0);
if (num1 != 0)
{
if (num1 == 9003)
{
list1.Add(NETWORK_SRV_ERROR_CONFIG_SERVICE);
}
else
{
Win32Exception ex = new Win32Exception(num1);
_log.Error("SRVLookup.GetSRVRecords: an exception occured during lookup. Details: " + ex.Message);
return(new string[] { SRVLookup.NETWORK_SRV_ERROR_CONFIG_SERVICE });
}
}
for (ptr2 = ptr1; !ptr2.Equals(IntPtr.Zero); ptr2 = recSRV.pNext)
{
recSRV = (SRVRecord)Marshal.PtrToStructure(ptr2, typeof(SRVRecord));
if (recSRV.wType == (short)QueryTypes.DNS_TYPE_SRV)
{
string text1 = Marshal.PtrToStringAuto(recSRV.pNameTarget);
text1 += ":" + recSRV.wPort;
list1.Add(text1);
}
}
}
finally
{
SRVLookup.DnsRecordListFree(ptr1, 0);
}
return((string[])list1.ToArray(typeof(string)));
}
public static ACEConfig LookupConfig(string address, string userName, string password)
{
string srvLookupUrl = "_rueconfig._tls.";
srvLookupUrl += address; // concat with selected domain
// cjm-sep17 -- just to save the example string to file
//ACEConfig configToSave = JsonFactoryConfig.defaultConfig(ACEConfigStatusType.SRV_RECORD_NOT_FOUND);
//JsonFactoryConfig.SaveDefaultConfig(JsonConvert.SerializeObject(configToSave, Formatting.Indented), JsonFactoryConfig.GetConfigFile());
string[] srvRecords = SRVLookup.GetSRVRecords(srvLookupUrl);
if (srvRecords.Length > 0)
{
string record = srvRecords[0];
if (!record.Equals(SRVLookup.NETWORK_SRV_ERROR_CONFIG_SERVICE))
{
string requestUrl = "https://" + srvRecords[0] + "/config/v1/config.json";
ACEConfig config = JsonFactoryConfig.createConfigFromURL(requestUrl, userName, password);
return(config);
}
else
{
// cjm-sep17 -- this at least a test for local hhtp with auth server
// this must be running on my local machine
// https://localhost:443/Linphone/config/v1/config.json
//IPHostEntry hostInfo = Dns.GetHostEntry("_sip._tcp.rueconfig.ddns.net");
//IPAddress localAddress = hostInfo.AddressList[0];
//string[] data = SRVLookup.GetSRVRecords("_sip._tcp.rueconfig.ddns.net");
string requestUrl = string.Empty;
if (address == "sip.linphone.org")
{
requestUrl = "https://localhost:443/Linphone/config/v1/config.json";
}
else
{
requestUrl = "https://localhost:443/ACL/config/v1/config.json";
}
ACEConfig config = JsonFactoryConfig.createConfigFromURL(requestUrl, userName, password);
return(config);
}
}
return(JsonFactoryConfig.defaultConfig(ACEConfigStatusType.SRV_RECORD_NOT_FOUND));
}
