void
Controller::setStickySessionId(Client *client, Request *req) {
if (req->stickySession) {
// TODO: This is not entirely correct. Clients MAY send multiple Cookie
// headers, although this is in practice extremely rare.
// http://stackoverflow.com/questions/16305814/are-multiple-cookie-headers-allowed-in-an-http-request
const LString *cookieHeader = req->headers.lookup(HTTP_COOKIE);
if (cookieHeader != NULL && cookieHeader->size > 0) {
const LString *cookieName = getStickySessionCookieName(req);
vector< pair<StaticString, StaticString> > cookies;
pair<StaticString, StaticString> cookie;
parseCookieHeader(req->pool, cookieHeader, cookies);
foreach (cookie, cookies) {
if (psg_lstr_cmp(cookieName, cookie.first)) {
// This cookie matches the one we're looking for.
req->options.stickySessionId = stringToUint(cookie.second);
return;
}
}
}
}
}
/**
* parse key-value pairs out of a "Cookie" request header
* (i.e. this=that; a=value)
*
* @param dict dictionary for key-values pairs
* @param cookie_header header string to be parsed
* @param set_cookie_header set true if parsing Set-Cookie response header
*
* @return bool true if successful
*/
static inline bool parseCookieHeader(HTTPTypes::CookieParams& dict,
const std::string& cookie_header, bool set_cookie_header)
{
return parseCookieHeader(dict, cookie_header.c_str(), cookie_header.size(), set_cookie_header);
}