SipccSdpAttributeList.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _SIPCCSDPATTRIBUTELIST_H_

#define _SIPCCSDPATTRIBUTELIST_H_

#include "sdp/SdpParser.h"

#include "sdp/SdpAttributeList.h"

extern "C" {

#include "sipcc_sdp.h"

namespace mozilla {

class SipccSdp;

class SipccSdpMediaSection;

class SipccSdpAttributeList : public SdpAttributeList {

  friend class SipccSdpMediaSection;

  friend class SipccSdp;

 public:

  // Make sure we don't hide the default arg thunks

  using SdpAttributeList::GetAttribute;

  using SdpAttributeList::HasAttribute;

  virtual bool HasAttribute(AttributeType type,

                            bool sessionFallback) const override;

  virtual const SdpAttribute* GetAttribute(AttributeType type,

                                           bool sessionFallback) const override;

  virtual void SetAttribute(SdpAttribute* attr) override;

  virtual void RemoveAttribute(AttributeType type) override;

  virtual void Clear() override;

  virtual uint32_t Count() const override;

  virtual const SdpConnectionAttribute& GetConnection() const override;

  virtual const SdpFingerprintAttributeList& GetFingerprint() const override;

  virtual const SdpGroupAttributeList& GetGroup() const override;

  virtual const SdpOptionsAttribute& GetIceOptions() const override;

  virtual const SdpRtcpAttribute& GetRtcp() const override;

  virtual const SdpRemoteCandidatesAttribute& GetRemoteCandidates()

      const override;

  virtual const SdpSetupAttribute& GetSetup() const override;

  virtual const SdpSsrcAttributeList& GetSsrc() const override;

  virtual const SdpSsrcGroupAttributeList& GetSsrcGroup() const override;

  virtual const SdpDtlsMessageAttribute& GetDtlsMessage() const override;

  // These attributes can appear multiple times, so the returned

  // classes actually represent a collection of values.

  virtual const std::vector<std::string>& GetCandidate() const override;

  virtual const SdpExtmapAttributeList& GetExtmap() const override;

  virtual const SdpFmtpAttributeList& GetFmtp() const override;

  virtual const SdpImageattrAttributeList& GetImageattr() const override;

  const SdpSimulcastAttribute& GetSimulcast() const override;

  virtual const SdpMsidAttributeList& GetMsid() const override;

  virtual const SdpMsidSemanticAttributeList& GetMsidSemantic() const override;

  const SdpRidAttributeList& GetRid() const override;

  virtual const SdpRtcpFbAttributeList& GetRtcpFb() const override;

  virtual const SdpRtpmapAttributeList& GetRtpmap() const override;

  virtual const SdpSctpmapAttributeList& GetSctpmap() const override;

  virtual uint32_t GetSctpPort() const override;

  virtual uint32_t GetMaxMessageSize() const override;

  // These attributes are effectively simple types, so we'll make life

  // easy by just returning their value.

  virtual const std::string& GetIcePwd() const override;

  virtual const std::string& GetIceUfrag() const override;

  virtual const std::string& GetIdentity() const override;

  virtual const std::string& GetLabel() const override;

  virtual unsigned int GetMaxptime() const override;

  virtual const std::string& GetMid() const override;

  virtual unsigned int GetPtime() const override;

  virtual SdpDirectionAttribute::Direction GetDirection() const override;

  virtual void Serialize(std::ostream&) const override;

  virtual ~SipccSdpAttributeList();

 private:

  static const std::string kEmptyString;

  static const size_t kNumAttributeTypes = SdpAttribute::kLastAttribute + 1;

  // Pass a session-level attribute list if constructing a media-level one,

  // otherwise pass nullptr

  explicit SipccSdpAttributeList(const SipccSdpAttributeList* sessionLevel);

  // Copy c'tor, sort of

  SipccSdpAttributeList(const SipccSdpAttributeList& aOrig,

                        const SipccSdpAttributeList* sessionLevel);

  using InternalResults = SdpParser::InternalResults;

  bool Load(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadSimpleStrings(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadSimpleString(sdp_t* sdp, uint16_t level, sdp_attr_e attr,

                        AttributeType targetType, InternalResults& results);

  void LoadSimpleNumbers(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadSimpleNumber(sdp_t* sdp, uint16_t level, sdp_attr_e attr,

                        AttributeType targetType, InternalResults& results);

  void LoadFlags(sdp_t* sdp, uint16_t level);

  void LoadDirection(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadRtpmap(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadSctpmap(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadIceAttributes(sdp_t* sdp, uint16_t level);

  bool LoadFingerprint(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadCandidate(sdp_t* sdp, uint16_t level);

  void LoadSetup(sdp_t* sdp, uint16_t level);

  void LoadSsrc(sdp_t* sdp, uint16_t level);

  void LoadSsrcGroup(sdp_t* sdp, uint16_t level);

  bool LoadImageattr(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadSimulcast(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadGroups(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadMsidSemantics(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadIdentity(sdp_t* sdp, uint16_t level);

  void LoadDtlsMessage(sdp_t* sdp, uint16_t level);

  void LoadFmtp(sdp_t* sdp, uint16_t level);

  void LoadMsids(sdp_t* sdp, uint16_t level, InternalResults& results);

  bool LoadRid(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadExtmap(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadRtcpFb(sdp_t* sdp, uint16_t level, InternalResults& results);

  void LoadRtcp(sdp_t* sdp, uint16_t level, InternalResults& results);

  static SdpRtpmapAttributeList::CodecType GetCodecType(rtp_ptype type);

  bool AtSessionLevel() const { return !mSessionLevel; }

  bool IsAllowedHere(SdpAttribute::AttributeType type) const;

  void WarnAboutMisplacedAttribute(SdpAttribute::AttributeType type,

                                   uint32_t lineNumber,

                                   InternalResults& results);

  const SipccSdpAttributeList* mSessionLevel;

  SdpAttribute* mAttributes[kNumAttributeTypes];

  SipccSdpAttributeList(const SipccSdpAttributeList& orig) = delete;

  SipccSdpAttributeList& operator=(const SipccSdpAttributeList& rhs) = delete;

};

}  // namespace mozilla

#endif