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SIP Stack with SIP Proxy - (VOIP)

, 11 Jun 2007
C# implementation of SIP
SIP_Proxy_demo.zip
SIP_Proxy_demo
SIP_Proxy_demo.suo
SIP_Proxy_demo
bin
Debug
LumiSoft.Net.dll
SIP_Proxy_demo.exe
SIP_Proxy_demo.vshost.exe
dep
LumiSoft.Net.dll
LumiSoft.Net.pdb
Properties
Settings.settings
Resources
add.ico
app.ico
delete.ico
edit.ico
error.ico
info.ico
refresh.ico
rule.ico
server_running.ico
server_stopped.ico
viewmessages.ico
Stack.zip
Net
docs
dns
dns_records.jpg
dns_records.vsd
Net
_junk
_Obsolete
AUTH
bin
Release
LumiSoft.Net.dll
Data
Dns
Client
FTP
Client
Server
HTTP
Server
ICMP
IMAP
Client
Server
IO
Log
LumiSoft.Net
Mime
vCard
Net.csproj.user
Net.suo
NNTP
Client
POP3
Client
Server
RTP
SDP
ServersCore
SIP
Client
Message
Proxy
Stack
SMTP
Client
Server
STUN
Client
Message
URI
using System;
using System.Collections.Generic;
using System.Text;

namespace LumiSoft.Net.SIP.Message
{
    /// <summary>
    /// Implements same multi value header fields group. Group can contain one type header fields only.
    /// This is class is used by Via:,Route:, ... .
    /// </summary>
    public class SIP_MVGroupHFCollection<T> where T : SIP_t_Value,new()
    {
        private SIP_Message               m_pMessage  = null;
        private string                    m_FieldName = "";
        private List<SIP_MultiValueHF<T>> m_pFields   = null;

        /// <summary>
        /// Default constructor.
        /// </summary>
        /// <param name="owner">Owner message that owns this group.</param>
        /// <param name="fieldName">Header field name what group holds.</param>
        public SIP_MVGroupHFCollection(SIP_Message owner,string fieldName)
        {
            m_pMessage  = owner;
            m_FieldName = fieldName;

            m_pFields = new List<SIP_MultiValueHF<T>>();

            Refresh();
        }


        #region mehtod Refresh

        /// <summary>
        /// Refreshes header fields in group from actual header.
        /// </summary>
        private void Refresh()
        {
            m_pFields.Clear();
           
            foreach(SIP_HeaderField h in m_pMessage.Header){
                if(h.Name.ToLower() == m_FieldName.ToLower()){                
                    m_pFields.Add((SIP_MultiValueHF<T>)h);
                }
            }
        }

        #endregion


        #region method AddToTop

        /// <summary>
        /// Add new header field on the top of the whole header.
        /// </summary>
        /// <param name="value">Header field value.</param>
        public void AddToTop(string value)
        {            
            m_pMessage.Header.Insert(0,m_FieldName,value);
            Refresh();
        }

        #endregion

        #region method Add

        /// <summary>
        /// Add new header field on the bottom of the whole header.
        /// </summary>
        /// <param name="value">Header field value.</param>
        public void Add(string value)
        {            
            m_pMessage.Header.Add(m_FieldName,value);
            Refresh();
        }

        #endregion

        #region method RemoveAll

        /// <summary>
        /// Removes all specified header fields with their values.
        /// </summary>
        public void RemoveAll()
        {
            m_pMessage.Header.RemoveAll(m_FieldName);
            m_pFields.Clear();
        }

        #endregion

        #region mehtod GetTopMostValue

        /// <summary>
        /// Gets top most header field first value. 
        /// </summary>
        public T GetTopMostValue()
        {
            if(m_pFields.Count > 0){
                return m_pFields[0].Values[0];
            }

            return null;
        }

        #endregion
                
        #region method RemoveTopMostValue

        /// <summary>
        /// Removes top most header field first value. If value is the last value, 
        /// the whole header field will be removed.
        /// </summary>
        public void RemoveTopMostValue()
        {
            if(m_pFields.Count > 0){                
                SIP_MultiValueHF<T> h = m_pFields[0];
                if(h.Count > 1){
                    h.Remove(0);
                }
                else{
                    m_pMessage.Header.Remove(m_pFields[0]);
                    m_pFields.Remove(m_pFields[0]);
                }
            }
        }

        #endregion

        #region method GetAllValues

        /// <summary>
        /// Gets all header field values.
        /// </summary>
        /// <returns></returns>
        public T[] GetAllValues()
        {
            List<T> retVal = new List<T>();
            foreach(SIP_MultiValueHF<T> h in m_pFields){
                foreach(SIP_t_Value v in h.Values){
                    retVal.Add((T)v);
                }
            }

            return retVal.ToArray();
        }

        #endregion


        #region Properties Implementation

        /// <summary>
        /// Gets header field name what this group holds.
        /// </summary>
        public string FieldName
        {
            get{ return m_FieldName; }
        }

        /// <summary>
        /// Gets number of header fields in this group.
        /// </summary>
        public int Count
        {
            get{ return m_pFields.Count; }
        }

        /// <summary>
        /// Gets header fields what are in this group.
        /// </summary>
        public SIP_MultiValueHF<T>[] HeaderFields
        {
            get{ return m_pFields.ToArray(); }
        }

        #endregion

    }
}

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About the Author

Ivar Lumi

Estonia Estonia
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