//---------------------------------------------------------------------
// Static members
/// <summary>
/// Constructs an instance from settings loaded from the application configuration.
/// </summary>
/// <param name="keyPrefix">The configuration key prefix.</param>
/// <remarks>
/// <para>
/// The RADIUS client settings are loaded from the application
/// configuration, using the specified key prefix. The following
/// settings are recognized by the class:
/// </para>
/// <div class="tablediv">
/// <table class="dtTABLE" cellspacing="0" ID="Table1">
/// <tr valign="top">
/// <th width="1">Setting</th>
/// <th width="1">Default</th>
/// <th width="90%">Description</th>
/// </tr>
/// <tr valign="top">
/// <td>Type</td>
/// <td>UDP</td>
/// <td>
/// Specifies the transport type. This must be one
/// of the following values: <b>UDP</b>, <b>TCP</b>, or <b>TLS</b>.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>Binding</td>
/// <td>ANY:SIP</td>
/// <td>
/// The <see cref="NetworkBinding" /> the transport should use
/// when binding to the network interface.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>ExternalBinding</td>
/// <td>(see note)</td>
/// <td>
/// The <see cref="NetworkBinding" /> that specifies how external clients
/// will access the transport. This will typically be set to the IP
/// address and port on the WAN side of the firewall/router that is
/// mapped to the <b>Binding</b> specified above. This defaults to
/// <b>Binding</b> unless its IP address is <see cref="IPAddress.Any" />.
/// If this is the case, then <b>ExternalBinding</b> will default to
/// the IP address of the first active network adapter found and the
/// port specified in <b>Binding</b>.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>BufferSize</td>
/// <td>32K</td>
/// <td>
/// Byte size of the socket's send and receive buffers.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>Timers.*</td>
/// <td>(see note)</td>
/// <td>
/// This subsection can be used to override the default
/// timers used by user agents for this transport.
/// See the <see cref="SipBaseTimers" /> class' <see cref="SipBaseTimers.LoadConfig" />
/// method for more information.
/// </td>
/// </tr>
/// </table>
/// </div>
/// <para>
/// Transport settings can be specified in an application configuration
/// section. Applications will often use a configuration array so that
/// multiple transports can be specified.
/// </para>
/// </remarks>
public static SipTransportSettings LoadConfig(string keyPrefix)
{
var settings = new SipTransportSettings();
var config = new Config(keyPrefix);
settings.TransportType = config.Get <SipTransportType>("Type", settings.TransportType);
settings.Binding = config.Get("Binding", settings.Binding);
settings.ExternalBinding = config.Get("ExternalBinding", settings.Binding);
settings.BufferSize = config.Get("BufferSize", settings.BufferSize);
settings.BaseTimers = SipBaseTimers.LoadConfig(config.KeyPrefix + "Timers");
return(settings);
}
//---------------------------------------------------------------------
// Static members
/// <summary>
/// Loads the settings from the application configuration.
/// </summary>
/// <param name="keyPrefix">The configuration key prefix.</param>
/// <returns>The loaded <see cref="SipCoreSettings" />.</returns>\
/// <remarks>
/// <div class="tablediv">
/// <table class="dtTABLE" cellspacing="0" ID="Table1">
/// <tr valign="top">
/// <th width="1">Setting</th>
/// <th width="1">Default</th>
/// <th width="90%">Description</th>
/// </tr>
/// <tr valign="top">
/// <td>LocalContact</td>
/// <td>(see note)</td>
/// <td>
/// <para>
/// Specifies necessary information to be included in the <b>Contact</b> header in
/// requests and responses generated by the core. This can be a full contact heading
/// with a display name, SIP URI, and contact parameters, or just an IP address or
/// host name. Full SIP URIs will be used <i>as is</i> when used in a <b>Contact</b>
/// header. A SIP URI will be generated on the fly from an IP address or host by adding
/// the port and transport parameter based on the actual transport used. This defaults to
/// the first active IP address found on the machine.
/// </para>
/// <note>
/// SIP URIs with parameters (such as "transport=tcp") <b>must be surrounded by angle brackets:</b>
/// "<" and ">".
/// </note>
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>OutboundProxy</td>
/// <td>(none)</td>
/// <td>
/// Specifies outbound proxy SIP URI where the core should route all
/// outbound SIP requests. Set this to <c>null</c> to route requests
/// directly to their destination.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>UserAgent</td>
/// <td>LillTek SIP <version></td>
/// <td>
/// Specifies the value to use as the <b>User-Agent</b> header for SIP messages.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>ServerAgent</td>
/// <td>LillTek SIP <version></td>
/// <td>
/// Specifies the value to use as the <b>Server</b> header for SIP messages.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>AutoAuthenticate</td>
/// <td>yes</td>
/// <td>
/// Indicates that the core should automatically handle authentication
/// challenges from proxies and remote SIP endpoints by computing
/// appropriate response and resubmitting the request.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>UserName</td>
/// <td>(none)</td>
/// <td>
/// The account name used for authenticating with downstream SIP trunking proxies.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>Password</td>
/// <td>(none)</td>
/// <td>
/// The password name to use for authentication purposes.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>TraceMode</td>
/// <td><see cref="SipTraceMode.None" /></td>
/// <td>
/// Indicates whether the SIP core should generate <see cref="NetTrace" />
/// diagnostics. Note that <b>Diagnostics.TraceEnable[#]=0:LillTek.SIP</b> must
/// also be set for this to work. Valid values are: <see cref="SipTraceMode.None" />,
/// <see cref="SipTraceMode.Send" />, <see cref="SipTraceMode.Receive" />, and
/// <see cref="SipTraceMode.All" />.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>ServerTransactionTTL</td>
/// <td>15m</td>
/// <td>
/// The maximum time a server side transaction will be maintained. Transactions
/// that have existed for longer than this will be terminated. This helps
/// prevent memory leaks due to hung or crashed server transaction handlers.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>EarlyDialogTTL</td>
/// <td>90s</td>
/// <td>
/// The maximum time an early dialog will be maintained by the core if the
/// dialog isn't confirmed by the client.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>BkInterval</td>
/// <td>250ms</td>
/// <td>
/// The interval which the core should wake up to perform background tasks.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>TransportBkInterval</td>
/// <td>1s</td>
/// <td>
/// The interval at which transport background activities should be performed.
/// </td>
/// </tr>
/// <tr valign="top">
/// <td>Transport[#]</td>
/// <td>(see note)</td>
/// <td>
/// <para>
/// The transport settings are loaded from the "Transport" subsection
/// array. See <see cref="SipTransportSettings.LoadConfig" /> for
/// information on the settings loaded from each of these subsections.
/// </para>
/// <para>
/// This defaults to a single UDP transport binding to all network
/// interfaces on port 5060.
/// </para>
/// </td>
/// </tr>
/// </table>
/// </div>
/// </remarks>
public static SipCoreSettings LoadConfig(string keyPrefix)
{
var config = new Config(keyPrefix);
var settings = new SipCoreSettings();
var transports = config.GetSectionKeyArray("Transport");
settings.LocalContact = config.Get("LocalContact", settings.LocalContact);
settings.AutoAuthenticate = config.Get("AutoAuthenticate", settings.AutoAuthenticate);
settings.UserName = config.Get("UserName", settings.UserName);
settings.Password = config.Get("Password", settings.Password);
settings.TraceMode = config.Get <SipTraceMode>("TraceMode", settings.TraceMode);
settings.UserAgent = config.Get("UserAgent", settings.UserAgent);
settings.ServerAgent = config.Get("ServerAgent", settings.ServerAgent);
settings.ServerTransactionTTL = config.Get("ServerTransactionTTL", settings.ServerTransactionTTL);
settings.EarlyDialogTTL = config.Get("EarlyDialogTTL", settings.EarlyDialogTTL);
settings.BkInterval = config.Get("BkInterval", settings.BkInterval);
settings.TransportBkInterval = config.Get("TransportBkInterval", settings.TransportBkInterval);
string uri;
uri = config.Get("OutboundProxy", (string)settings.OutboundProxyUri);
if (string.IsNullOrWhiteSpace(uri))
{
settings.OutboundProxyUri = null; // Treat blank as null
}
else
{
try
{
settings.OutboundProxyUri = new SipUri(uri);
}
catch (Exception e)
{
SysLog.LogException(e, "Cannot parse SIP Core setting [OutboundProxy].");
}
}
settings.TransportSettings = new SipTransportSettings[transports.Length];
for (int i = 0; i < transports.Length; i++)
{
settings.TransportSettings[i] = SipTransportSettings.LoadConfig(transports[i]);
}
return(settings);
}
/// <summary>
/// Starts the transport.
/// </summary>
/// <param name="settings">The <see cref="SipTransportSettings" />.</param>
/// <param name="router">The <see cref="ISipMessageRouter" /> instance that will handle the routing of received messages.</param>
/// <exception cref="SocketException">Thrown if there's a conflict with the requested and existing socket bindings.</exception>
public void Start(SipTransportSettings settings, ISipMessageRouter router)
{
this.settings = settings;
Start(settings.Binding, settings.BufferSize, router);
}
