//Parses the request
QTSS_Error HTTPRequest::Parse()
{
Assert(fRequestHeader.Ptr != NULL);
StringParser parser(&fRequestHeader);
// Store the request line (used for logging)
// (ex: GET /index.html HTTP/1.0)
StringParser requestLineParser(&fRequestHeader);
requestLineParser.ConsumeUntil(&fRequestLine, StringParser::sEOLMask);
// Parse request line returns an error if there is an error in the
// request URI or the formatting of the request line.
// If the method or version are not found, they are set
// to httpIllegalMethod or httpIllegalVersion respectively,
// and QTSS_NoErr is returned.
// 解析第一行
QTSS_Error err = ParseRequestLine(&parser);
if (err != QTSS_NoErr)
return err;
// Parse headers and set values of headers into fFieldValues array
err = ParseHeaders(&parser);
if (err != QTSS_NoErr)
return err;
return QTSS_NoErr;
}
size_t cHTTPRequest::ParseHeaders(const char * a_Data, size_t a_Size)
{
if (!m_IsValid)
{
return AString::npos;
}
if (m_Method.empty())
{
// The first line hasn't been processed yet
size_t res = ParseRequestLine(a_Data, a_Size);
if ((res == AString::npos) || (res == a_Size))
{
return res;
}
size_t res2 = m_EnvelopeParser.Parse(a_Data + res, a_Size - res);
if (res2 == AString::npos)
{
m_IsValid = false;
return res2;
}
return res2 + res;
}
if (m_EnvelopeParser.IsInHeaders())
{
size_t res = m_EnvelopeParser.Parse(a_Data, a_Size);
if (res == AString::npos)
{
m_IsValid = false;
}
return res;
}
return 0;
}
void RequestParser::Parse(const string& s) {
if (start == 0) {
// Request line.
ParseRequestLine(s);
} else if (s.find("Range") == 0) {
int64_t start,end;
if (ParseRange(s, start, end)) {
rangeStart = start;
rangeEnd = end;
hasRange = true;
}
}
}
/**
* @brief SIP 헤더 문자열을 파싱하여 CSipMessage 클래스의 멤버 변수에 저장한다.
* @param pszText SIP 헤더의 값을 저장한 문자열
* @param iTextLen pszText 문자열의 길이
* @returns 성공하면 파싱한 길이를 리턴하고 그렇지 않으면 -1 를 리턴한다.
*/
int CSipMessage::Parse( const char * pszText, int iTextLen )
{
if( pszText == NULL || iTextLen <= 4 ) return -1;
int iPos, iCurPos, iNameLen, iValueLen;
const char * pszName, * pszValue;
CSipHeader clsHeader;
#ifdef PARSE_FAST
bool bNotFound;
#endif
if( !strncmp( pszText, "SIP/", 4 ) )
{
iCurPos = ParseStatusLine( pszText, iTextLen );
}
else
{
iCurPos = ParseRequestLine( pszText, iTextLen );
}
if( iCurPos == -1 ) return -1;
while( iCurPos < iTextLen )
{
iPos = clsHeader.Parse( pszText + iCurPos, iTextLen - iCurPos );
if( iPos == -1 ) return -1;
iCurPos += iPos;
iNameLen = (int)clsHeader.m_strName.length();
if( iNameLen == 0 ) break;
pszName = clsHeader.m_strName.c_str();
pszValue = clsHeader.m_strValue.c_str();
iValueLen = (int)clsHeader.m_strValue.length();
#ifdef PARSE_FAST
bNotFound = false;
if( iNameLen == 1 )
{
if( pszName[0] == 'v' )
{
if( ParseSipVia( m_clsViaList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 'f' )
{
if( m_clsFrom.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 't' )
{
if( m_clsTo.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 'i' )
{
if( m_clsCallId.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 'm' )
{
if( ParseSipFrom( m_clsContactList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 'c' )
{
if( m_clsContentType.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( pszName[0] == 'l' )
{
m_iContentLength = atoi( pszValue );
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 2 )
{
if( !strcasecmp( pszName, "To" ) )
{
if( m_clsTo.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 3 )
{
if( !strcasecmp( pszName, "Via" ) )
{
if( ParseSipVia( m_clsViaList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 4 )
{
if( !strcasecmp( pszName, "From" ) )
{
if( m_clsFrom.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "CSeq" ) )
{
if( m_clsCSeq.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 5 )
{
if( !strcasecmp( pszName, "Route" ) )
{
if( ParseSipFrom( m_clsRouteList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
#ifdef USE_ACCEPT_HEADER
else if( iNameLen == 6 )
{
if( !strcasecmp( pszName, "Accept" ) )
{
if( ParseSipContentType( m_clsAcceptList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
#endif
else if( iNameLen == 7 )
{
if( !strcasecmp( pszName, "Call-ID" ) )
{
if( m_clsCallId.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Contact" ) )
{
if( ParseSipFrom( m_clsContactList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Expires" ) )
{
m_iExpires = atoi( pszValue );
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 10 )
{
if( !strcasecmp( pszName, "User-Agent" ) )
{
m_strUserAgent = clsHeader.m_strValue;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 12 )
{
if( !strcasecmp( pszName, "Max-Forwards" ) )
{
m_iMaxForwards = atoi( pszValue );
}
else if( !strcasecmp( pszName, "Record-Route" ) )
{
if( ParseSipFrom( m_clsRecordRouteList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Content-Type" ) )
{
if( m_clsContentType.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 13 )
{
if( !strcasecmp( pszName, "Authorization" ) )
{
if( ParseSipCredential( m_clsAuthorizationList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 14 )
{
if( !strcasecmp( pszName, "Content-Length" ) )
{
m_iContentLength = atoi( pszValue );
}
else
{
bNotFound = true;
}
}
#ifdef USE_ACCEPT_HEADER
else if( iNameLen == 15 )
{
else if( !strcasecmp( pszName, "Accept-Encoding" ) )
{
if( ParseSipAcceptData( m_clsAcceptEncodingList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Accept-Language" ) )
{
if( ParseSipAcceptData( m_clsAcceptLanguageList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
#endif
else if( iNameLen == 16 )
{
if( !strcasecmp( pszName, "WWW-Authenticate" ) )
{
if( ParseSipChallenge( m_clsWwwAuthenticateList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 18 )
{
if( !strcasecmp( pszName, "Proxy-Authenticate" ) )
{
if( ParseSipChallenge( m_clsProxyAuthenticateList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else if( iNameLen == 19 )
{
if( !strcasecmp( pszName, "Proxy-Authorization" ) )
{
if( ParseSipCredential( m_clsProxyAuthorizationList, pszValue, iValueLen ) == -1 ) return -1;
}
else
{
bNotFound = true;
}
}
else
{
bNotFound = true;
}
if( bNotFound )
{
m_clsHeaderList.push_back( clsHeader );
}
#else
if( !strcasecmp( pszName, "Via" ) || !strcasecmp( pszName, "v" ) )
{
if( ParseSipVia( m_clsViaList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Max-Forwards" ) )
{
m_iMaxForwards = atoi( pszValue );
}
else if( !strcasecmp( pszName, "From" ) || !strcasecmp( pszName, "f" ) )
{
if( m_clsFrom.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "To" ) || !strcasecmp( pszName, "t" ) )
{
if( m_clsTo.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "CSeq" ) )
{
if( m_clsCSeq.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Call-ID" ) || !strcasecmp( pszName, "i" ) )
{
if( m_clsCallId.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Contact" ) || !strcasecmp( pszName, "m" ) )
{
if( ParseSipFrom( m_clsContactList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Record-Route" ) )
{
if( ParseSipFrom( m_clsRecordRouteList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Route" ) )
{
if( ParseSipFrom( m_clsRouteList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Authorization" ) )
{
if( ParseSipCredential( m_clsAuthorizationList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "WWW-Authenticate" ) )
{
if( ParseSipChallenge( m_clsWwwAuthenticateList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Proxy-Authorization" ) )
{
if( ParseSipCredential( m_clsProxyAuthorizationList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Proxy-Authenticate" ) )
{
if( ParseSipChallenge( m_clsProxyAuthenticateList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Content-Type" ) || !strcasecmp( pszName, "c" ) )
{
if( m_clsContentType.Parse( pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Content-Length" ) || !strcasecmp( pszName, "l" ) )
{
m_iContentLength = atoi( pszValue );
}
#ifdef USE_ACCEPT_HEADER
else if( !strcasecmp( pszName, "Accept-Encoding" ) )
{
if( ParseSipAcceptData( m_clsAcceptEncodingList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Accept-Language" ) )
{
if( ParseSipAcceptData( m_clsAcceptLanguageList, pszValue, iValueLen ) == -1 ) return -1;
}
else if( !strcasecmp( pszName, "Accept" ) )
{
if( ParseSipContentType( m_clsAcceptList, pszValue, iValueLen ) == -1 ) return -1;
}
#endif
else if( !strcasecmp( pszName, "Expires" ) )
{
m_iExpires = atoi( pszValue );
}
else if( !strcasecmp( pszName, "User-Agent" ) )
{
m_strUserAgent = clsHeader.m_strValue;
}
else
{
m_clsHeaderList.push_back( clsHeader );
}
#endif
}
int RtspRequest::ParseRtspPackage(char Buf[], int Size) //bool bReq
{
int ret = 0;
StringArray_t saLine;
StringPair_t spHeader;
string Delim=CRLF;
string sRequest(Buf, Size);
U32 theHeader = 0;
StringUtil::Trim(sRequest);
StringUtil::Split(sRequest, Delim, saLine);
//Request Line
if(strncmp(saLine[0].c_str(), RTSPProtocol::GetVersionString(RTSPProtocol::k10Version).Ptr, RTSPProtocol::GetVersionString(RTSPProtocol::k10Version).Len) != 0) //bReq
{
m_bIsRequest = true;
ret = ParseRequestLine(saLine[0]);
if(ret < 0)
{
return -1;
}
}
else
{
m_bIsRequest = false;
ret = ParseStatusLine(saLine[0]);
if(ret < 0)
{
return -1;
}
}
//Parse Header
for(int i=1; i<saLine.size(); i++)
{
StringUtil::Split(saLine[i], ':', spHeader);
theHeader = RTSPProtocol::GetRequestHeader(StrPtrLen((char*)spHeader.first.c_str()));
if(qtssIllegalHeader != theHeader)
{
StringUtil::Trim(spHeader.second);
m_HeaderDict[theHeader] = spHeader.second;
}
//some headers require some special processing. If this code begins
//to get out of control, we made need to come up with a function pointer table
switch (theHeader)
{
case qtssSessionHeader: ParseSessionHeader(); break;
case qtssCSeqHeader: ParseCSeqHeader(); break;
case qtssTransportHeader: ParseTransportHeader(); break;
case qtssRangeHeader: ParseRangeHeader(); break;
case qtssContentLengthHeader: ParseContentLengthHeader();break;
case qtssSpeedHeader: ParseSpeedHeader(); break;
case qtssScaleHeader: ParseScaleHeader(); break;
case qtssRequireHeader: ParseRequireHeader(); break;
case ngodNoticeHeader: ParseNoticeHeader(); break;
case ngodOnDemandSessionIdHeader: ParseOnDemandSessionIdHeader(); break;
case ngodReasonHeader: ParseReasonHeader(); break;
case ngodSessionGroupHeader: ParseSessionGroupHeader(); break;
default: break;
}
}
return 0;
}