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[KOE-146] Free/Busy server now tries another port if the standard port is in use.

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This commit is contained in:
Patrick Simpson 2017-10-25 11:00:44 +02:00
parent 6bffab3229
commit c2b0dc6e26
1 changed files with 42 additions and 3 deletions
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45
src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/FreeBusy/FeatureFreeBusy.cs
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@ -113,13 +113,54 @@ namespace Acacia.Features.FreeBusy
private const string REG_VALUE = @"Read URL";
internal const string URL_IDENTIFIER = "zpush";
private const int DEFAULT_PORT = 18632;
private const string URL_PREFIX = @"http://127.0.0.1:{0}/" + URL_IDENTIFIER + "/";
private const string URL_BASE = @"http://127.0.0.1:";
private const string URL_PREFIX = URL_BASE + @"{0}/" + URL_IDENTIFIER + "/";
// The placeholders in URL are replaced by Outlook
private const string URL = URL_PREFIX + "%NAME%@%SERVER%";
private void Worker()
{
Port = DEFAULT_PORT;
// Check the URL to reuse the port number if possible
try
{
using (RegistryKey key = OutlookRegistryUtils.OpenOutlookKey(REG_KEY))
{
if (key != null)
{
string oldURL = key.GetValueString(REG_VALUE);
if (oldURL.StartsWith(URL_BASE))
{
string rest = oldURL.Substring(URL_BASE.Length);
int sep = rest.IndexOf('/');
if (sep >= 0)
rest = rest.Substring(0, sep);
int port = int.Parse(rest);
if (port > 0 && port < 65536)
Port = port;
}
}
}
}
catch (Exception) { Port = DEFAULT_PORT; }
TcpListener listener;
listener = new TcpListener(IPAddress.Loopback, Port);
try
{
listener.Start();
}
catch(SocketException)
{
// Error opening port, try with a default one
listener = new TcpListener(IPAddress.Loopback, 0);
listener.Start();
Port = ((IPEndPoint)listener.LocalEndpoint).Port;
}
// Register URL
using (RegistryKey key = OutlookRegistryUtils.OpenOutlookKey(REG_KEY, Microsoft.Win32.RegistryKeyPermissionCheck.ReadWriteSubTree))
{
@ -135,8 +176,6 @@ namespace Acacia.Features.FreeBusy
FreeBusyServer server = new FreeBusyServer(this);
// Run
TcpListener listener = new TcpListener(IPAddress.Loopback, Port);
listener.Start();
for (;;)
{
Interlocked.Increment(ref _iterationCount);