BranchParameter.hxx

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#if !defined(RESIP_BRANCHPARAMETER_HXX)
#define RESIP_BRANCHPARAMETER_HXX 
 
#include <iosfwd>
 
#include "resip/stack/Parameter.hxx"
#include "resip/stack/ParameterTypeEnums.hxx"
#include "rutil/Data.hxx"
#include "rutil/PoolBase.hxx"
 
namespace resip
{
 
class ParseBuffer;
 
// BranchParameter of the form: 
// rfc3261cookie-sip2cookie-tid-transportseq-clientdata-sip2cookie
// Notably, the tid MAY contain dashes by the clientdata MUST NOT.
//
 
class BranchParameter : public Parameter
{
   public:
      typedef BranchParameter Type;
      
      BranchParameter(ParameterTypes::Type, ParseBuffer& pb, const std::bitset<256>& terminators);
      explicit BranchParameter(ParameterTypes::Type);
 
      ~BranchParameter();
 
      // contains z9hG4bK
      bool hasMagicCookie() const;
 
      // returns tid
      const Data& getTransactionId() const;
 
      // increments the transport sequence component - not part of tid
      void incrementTransportSequence();
 
      // pseudo-random tid if none specified, zero sequences either way
      void reset(const Data& transactionId = Data::Empty);
 
      // access the client specific portion of the branch - not part of tid
      Data& clientData();
      const Data& clientData() const;
 
      // access sigcomp id -- we do pre- and post-processing on this,
      // so we need "normal" setters and getters
      void setSigcompCompartment(const Data &);
      Data getSigcompCompartment() const;
 
      static Parameter* decode(ParameterTypes::Type type, 
                                 ParseBuffer& pb, 
                                 const std::bitset<256>& terminators,
                                 PoolBase* pool)
      {
         return new (pool) BranchParameter(type, pb, terminators);
      }
      
      virtual Parameter* clone() const;
      virtual EncodeStream& encode(EncodeStream& stream) const;
 
      BranchParameter(const BranchParameter& other);
      BranchParameter& operator=(const BranchParameter& other);
      bool operator==(const BranchParameter& other) const;
 
      Type& value() {return *this;}
 
   private:
      bool mHasMagicCookie;
      bool mIsMyBranch;
      Data mTransactionId;
      unsigned int mTransportSeq;
      Data mClientData;
      //magic cookie for interop; if case is different some proxies will treat this as a different tid
      const Data* mInteropMagicCookie; 
 
      // If we're compressing, this will hold the compartment ID
      // for the host that the request was sent to.
      Data mSigcompCompartment;
                                
};
 
}
 
#endif
 
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