Commit 2c193dae authored by urbant's avatar urbant
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parent cf2a5258

codec/c++/sip_codets.cpp

+84 −59
Original line number Diff line number Diff line 
#include "gen_classes.h"



#include <regex.h>





namespace t3devlib { namespace gen {



class Regex {
@@ -84,20 +82,23 @@ void read_sp (Buffer & buffer, Variable* v) { 
#define SIPCHARS_ALFANUM	"0-9" SIPCHARS_ALFA

#define SIPCHARS_HEXA	"0-9A-F"

#define SIPCHARS_UNRESERVED	SIPCHARS_ALFANUM SIPCHARS_MARK

#define SIPCHARS_RESERVED	";/?:@&=+$,"

#define SIPCHARS_USER_UNRESERVED "&=+$,;?/"

#define SIPCHARS_ESCAPED	"(%[0-9A-F]{2})"

#define SIPCHARS_TOKEN "^[" SIPCHARS_ALFANUM ".!%*_+`'~\\-]+"

#define SIPCHARS_UTF8_NONASCII	"\xC0-\xFD"

#define SIPCHARS_UTF8_CONTENT	"\x80-\xBF"

#define SIPREG_ESCAPED	"(%[0-9A-F]{2})"

#define SIPREG_TOKEN "^[" SIPCHARS_ALFANUM ".!%*_+`'~\\-]+"



//FIXME: WSP is not clearly defined (all whitespaces) 

#define SIPCHARS_WSP		" 	"



// sip version

#define SIPCHARS_SIP_VERSION "SIP/[0-9].[0-9]"

#define SIPREG_SIP_VERSION "SIP/[0-9].[0-9]"



// host name

#define SIPCHARS_TOPLABEL	"[" SIPCHARS_ALFA "]([" SIPCHARS_ALFANUM "\\-]*[" SIPCHARS_ALFANUM "])?"

#define SIPCHARS_DOMAINLABEL	"[" SIPCHARS_ALFANUM "]([" SIPCHARS_ALFANUM "\\-]*[" SIPCHARS_ALFANUM "])?"

#define SIPCHARS_HOSTNAME	"(" SIPCHARS_DOMAINLABEL "\\.)*" SIPCHARS_TOPLABEL "\\.?"

#define SIPREG_TOPLABEL	"[" SIPCHARS_ALFA "]([" SIPCHARS_ALFANUM "\\-]*[" SIPCHARS_ALFANUM "])?"

#define SIPREG_DOMAINLABEL	"[" SIPCHARS_ALFANUM "]([" SIPCHARS_ALFANUM "\\-]*[" SIPCHARS_ALFANUM "])?"

#define SIPREG_HOSTNAME	"(" SIPREG_DOMAINLABEL "\\.)*" SIPREG_TOPLABEL "\\.?"





#define SIPREG_LWS		"([" SIPCHARS_WSP "]*\r\n)?[" SIPCHARS_WSP "]+"
@@ -105,33 +106,33 @@ void read_sp (Buffer & buffer, Variable* v) { 
#define SIPREG_HCOLON		"[ 	]*:" SIPREG_SWS



// IPv4

#define SIPCHARS_IP4	"([0-9]{1,3}\\.){3}[0-9]{1,3}"

#define SIPREG_IP4	"([0-9]{1,3}\\.){3}[0-9]{1,3}"



// IPv6

#define SIPCHARS_HEX4		"[" SIPCHARS_HEXA "]{1,4}"

#define SIPCHARS_HEXSEQ		SIPCHARS_HEX4 "([:]" SIPCHARS_HEX4 ")*"

#define SIPCHARS_HEXPART	"(((" SIPCHARS_HEXSEQ ")?[:]{2}(" SIPCHARS_HEXSEQ ")?)|(" SIPCHARS_HEXSEQ  "))"

#define SIPCHARS_IP6		"[[]" SIPCHARS_HEXPART "([:]" SIPCHARS_IP4 ")?[]]"

#define SIPREG_HEX4		"[" SIPCHARS_HEXA "]{1,4}"

#define SIPREG_HEXSEQ		SIPREG_HEX4 "([:]" SIPREG_HEX4 ")*"

#define SIPREG_HEXPART	"(((" SIPREG_HEXSEQ ")?[:]{2}(" SIPREG_HEXSEQ ")?)|(" SIPREG_HEXSEQ  "))"

#define SIPREG_IP6		"[[]" SIPREG_HEXPART "([:]" SIPREG_IP4 ")?[]]"



// host

#define SIPCHARS_HOST		"((" SIPCHARS_HOSTNAME ")|(" SIPCHARS_IP4 ")|(" SIPCHARS_IP6 "))"

#define SIPREG_HOST		"((" SIPREG_HOSTNAME ")|(" SIPREG_IP4 ")|(" SIPREG_IP6 "))"



#define SIPCHARS_PPARAM_UNRESERVED "][/:&+$"

#define SIPCHARS_PPARAM		"([" SIPCHARS_PPARAM_UNRESERVED SIPCHARS_UNRESERVED "]|" SIPCHARS_ESCAPED "])"

#define SIPCHARS_PPARAM_ALLOWED	"[" SIPCHARS_PPARAM_UNRESERVED SIPCHARS_UNRESERVED ";=%]+"

#define SIPREG_PPARAM		"([" SIPCHARS_PPARAM_UNRESERVED SIPCHARS_UNRESERVED "]|" SIPREG_ESCAPED ")"

#define SIPREG_PPARAM_ALLOWED	"[" SIPCHARS_PPARAM_UNRESERVED SIPCHARS_UNRESERVED ";=%]+"



#define SIPCHARS_HPARAM_UNRESERVED "][/?:+$"

#define SIPCHARS_HPARAM		"([" SIPCHARS_HPARAM_UNRESERVED SIPCHARS_UNRESERVED "]|" SIPCHARS_ESCAPED "])"

#define SIPCHARS_HPARAM_ALLOWED	"[" SIPCHARS_HPARAM_UNRESERVED SIPCHARS_UNRESERVED ";=%]+"

#define SIPREG_HPARAM		"([" SIPCHARS_HPARAM_UNRESERVED SIPCHARS_UNRESERVED "]|" SIPREG_ESCAPED ")"

#define SIPREG_HPARAM_ALLOWED	"[" SIPCHARS_HPARAM_UNRESERVED SIPCHARS_UNRESERVED ";=%]+"



void SipUrl::PreDecodeField (int id, Buffer& buffer) throw (DecodeError)

{



	static Regex reg_scheme ("^sip[s]?:", REG_ICASE);

	static Regex reg_userinfo ("^([:" SIPCHARS_UNRESERVED SIPCHARS_USER_UNRESERVED "]|" SIPCHARS_ESCAPED "])+@", REG_ICASE);

	static Regex reg_userinfo ("^([:" SIPCHARS_UNRESERVED SIPCHARS_USER_UNRESERVED "]|" SIPREG_ESCAPED "])+@", REG_ICASE);

	static Regex reg_hostport ("^[][" SIPCHARS_ALFANUM ":.\\-]+", REG_ICASE);

	static Regex reg_urlParams ("^;" SIPCHARS_PPARAM_ALLOWED, REG_ICASE);

	static Regex reg_headers ("^[?]" SIPCHARS_PPARAM_ALLOWED, REG_ICASE);

	static Regex reg_urlParams ("^;" SIPREG_PPARAM_ALLOWED, REG_ICASE);

	static Regex reg_headers ("^[?]" SIPREG_PPARAM_ALLOWED, REG_ICASE);



	switch (id) {

	case id_scheme:
@@ -182,8 +183,8 @@ void SipUrl::PreDecodeField (int id, Buffer& buffer) throw (DecodeError) 


void UserInfo::PreDecodeField (int id, Buffer& buffer) throw (DecodeError)

{

	static Regex reg_username ("^([" SIPCHARS_UNRESERVED SIPCHARS_USER_UNRESERVED "]|" SIPCHARS_ESCAPED ")+:", REG_ICASE);

	static Regex reg_password ("^([&=+$," SIPCHARS_UNRESERVED "]|" SIPCHARS_ESCAPED ")*", REG_ICASE);

	static Regex reg_username ("^([" SIPCHARS_UNRESERVED SIPCHARS_USER_UNRESERVED "]|" SIPREG_ESCAPED ")+:", REG_ICASE);

	static Regex reg_password ("^([&=+$," SIPCHARS_UNRESERVED "]|" SIPREG_ESCAPED ")*", REG_ICASE);

	switch (id) {

	case id_userOrTelephoneSubscriber:

		if (reg_username.Match (buffer)) {
@@ -204,8 +205,8 @@ void UserInfo::PreDecodeField (int id, Buffer& buffer) throw (DecodeError) 


void HostPort::PreDecodeField (int id, Buffer& buffer) throw (DecodeError)

{

	static Regex reg_host1 (SIPCHARS_HOST, REG_ICASE);

	static Regex reg_host2 (SIPCHARS_HOST ":", REG_ICASE);

	static Regex reg_host1 ("^" SIPREG_HOST, REG_ICASE);

	static Regex reg_host2 ("^" SIPREG_HOST ":", REG_ICASE);

	switch (id) {

	case id_host:

		SetHypFieldIsPresent(id, 1);
@@ -259,11 +260,11 @@ void GenericParam::PreDecodeField (int id, Buffer& buffer) throw (DecodeError) 
{

	static Regex reg_equals ("^=", REG_ICASE);



	static Regex reg_pparname ("^" SIPCHARS_PPARAM "+", REG_ICASE);

	static Regex reg_pparvalue ("^" SIPCHARS_PPARAM "*", REG_ICASE);

	static Regex reg_pparname ("^" SIPREG_PPARAM "+", REG_ICASE);

	static Regex reg_pparvalue ("^" SIPREG_PPARAM "*", REG_ICASE);



	static Regex reg_hparname ("^" SIPCHARS_HPARAM "+", REG_ICASE);

	static Regex reg_hparvalue ("^" SIPCHARS_HPARAM "*", REG_ICASE);

	static Regex reg_hparname ("^" SIPREG_HPARAM "+", REG_ICASE);

	static Regex reg_hparvalue ("^" SIPREG_HPARAM "*", REG_ICASE);



	Regex * preg_name;

	Regex * preg_value;
@@ -313,13 +314,12 @@ void GenericParam::PreDecodeField (int id, Buffer& buffer) throw (DecodeError) 


void RequestLine::PreDecodeField (int id, Buffer& buffer) throw (DecodeError)

{

	static Regex reg_method (SIPCHARS_TOKEN, REG_ICASE);

	static Regex reg_method (SIPREG_TOKEN, REG_ICASE);

	static Regex reg_request_uri ("[^ \t\n\r]+", REG_ICASE);

	static Regex reg_sip_version (SIPCHARS_SIP_VERSION, REG_ICASE);

	static Regex reg_sip_version (SIPREG_SIP_VERSION, REG_ICASE);

	switch (id) {

		case id_method:

			reg_method.AssertMatch (buffer, this);

			cout << "detected length: " << reg_method.GetMatchedLength() << "\n";

			SetHypFieldLength (id, reg_method.GetMatchedLength());

			break;

		case id_requestUri:
@@ -391,7 +391,7 @@ void Method::Encode (Buffer& buffer) throw (EncodeError) 


void Method::Decode (Buffer& buffer) throw (DecodeError)

{

	static Regex reg_method (SIPCHARS_TOKEN, REG_ICASE);

	static Regex reg_method (SIPREG_TOKEN, REG_ICASE);



	reg_method.AssertMatch (buffer, this);
@@ -412,6 +412,31 @@ void Method::Decode (Buffer& buffer) throw (DecodeError) 
	buffer.SetPosition(buffer.GetPosition() + reg_method.GetMatchedLength());

}



void StatusLine::PreDecodeField (int id, Buffer& buffer) throw (DecodeError)

{

	static Regex reg_sip_version (SIPREG_SIP_VERSION, REG_ICASE);

	static Regex reg_status_code ("^[0-9]{3}", REG_ICASE);

	static Regex reg_phrase ("([" SIPCHARS_RESERVED SIPCHARS_UNRESERVED SIPCHARS_UTF8_NONASCII SIPCHARS_UTF8_CONTENT " \t]|" SIPREG_ESCAPED ")*", REG_ICASE);



	switch (id) {

		case id_sipVersion:

			reg_sip_version.AssertMatch (buffer, this);

			SetHypFieldLength (id, reg_sip_version.GetMatchedLength());

			break;

		case id_statusCode:

			read_sp (buffer, this);

			reg_status_code.AssertMatch (buffer, this);

			SetHypFieldLength (id, reg_status_code.GetMatchedLength());

			Get_statusCode().SetFormat(Integer::AsciiDecimal);

			break;

		case id_reasonPhrase:

			read_sp (buffer, this);

			reg_phrase.AssertMatch (buffer, this);

			SetHypFieldLength (id, reg_phrase.GetMatchedLength());			

			break;

	}

}



class SipHeaderMap {

public:

	struct Entry {