int GetHeaderValueFromCollection(vector<SSDP_HTTP_HEADER*> headers, u8* fieldname, int fieldnamelen, u8** value, int *len){
int ret=0;
int found=0;
vector<SSDP_HTTP_HEADER*>::const_iterator it;
SSDP_HTTP_HEADER *hdr;
if(headers.size() <= 0){
ret = -1;
goto EXIT;
}
for(it=headers.begin(); it<headers.end(); it++){
hdr = *it;
if(caseinstringcmp(fieldname, fieldnamelen, hdr->fieldname, hdr->fieldnamelen) == 0){
//found
found=1;
break;
}
}
if(found){
*value=hdr->fieldvalue;
*len=hdr->fieldvaluelen;
}else{
ret =-1;
}
EXIT:
return ret;
}
int cachecontroltoi(u8* s, u32 l){
u32 ret = -1;
u32 p;
char buf[1024];
int buflen=1024;
if(l >= buflen){
return ret;
}
memcpy(&buf, s, l);
buf[l]=0;
//max-age=nn
trimspaces(&s, &l);
if(l >= 7 && caseinstringcmp(s, 7, (u8*)"max-age", 7) == 0){
//search the =
p = getchar((u8*)buf, strlen(buf), '=');
if(p > 0){
ret = atoi(buf+p+1);
}
}
return ret;
}
//modifies the buffer (!)
int HTTPSession::ParseHeader(unsigned char* buf, int len){
u8* pos = buf;
int poslen = len;
int space = 0;
int eol = 0;
int colon = 0;
//Parse http header
//New request
/*
* Parse Request line
* method<space>path<space>version<cr><lf>
*/
//Method
space = getchar(pos, poslen, ' ');
pos[space]=0;
mMethod = (char*)pos;
pos = pos + space + 1;
poslen = (buf + len) - pos;
//Path
space = getchar(pos, poslen, ' ');
pos[space]=0;
mPath = (char*)pos;
pos = pos + space + 1;
poslen = (buf + len) - pos;
//Version
eol = getchar(pos, poslen, '\r');
pos[eol]=0;
mVersion = (char*)pos;
pos = pos + eol + 2;
poslen = (buf + len) - pos;
/*
* Parse headers
*/
string headerName;
string headerValue;
mContentlength = -1;
mHeaders.clear();
while (true) {
colon = getchar(pos, poslen, ':');
eol = getchar(pos, poslen, '\r');
if(eol < 0){
break;
}
if(colon <= 0 || colon > eol){
while(*pos == '\r' || *pos == '\n' || *pos == ' '){
pos++;
poslen--;
}
break;//end of header
}
pos[colon] = 0;
pos[eol] = 0;
char* pheadervalue = (char*)pos + colon + 1;
int tmpeol = eol;
//LR Trim the header values
while(*pheadervalue == ' '){
pheadervalue++;
}
while(pheadervalue[tmpeol-1] == ' '){
pheadervalue[tmpeol-1] = 0;
tmpeol--;
}
headerValue = pheadervalue;//(char*)pos + colon + 1;
char* pheadername = (char*)pos;
int tmpcolon = colon;
while(*pheadername == ' '){
pheadername++;
}
while(pheadername[tmpcolon-1] == ' '){
pheadername[tmpcolon-1] = 0;
tmpcolon--;
}
headerName = pheadername;//(char*)pos;
//Content length ?
if( caseinstringcmp((u8*)pos, strlen((char*)pos), (u8*)"CONTENT-LENGTH", 14) == 0 ){
mContentlength = atoi((char*)pos + colon + 1);
}
pos = pos + eol + 2;
poslen = (buf + len) - pos;
//add it to the map
mHeaders[headerName] = headerValue;
}
mHeaderlength = len - poslen;
return mHeaderlength;
}
