Function getCookieByName

plugins/experimental/access_control/plugin.cc:231–268

* @brief Append cookies by following the rules specified in the cookies config object. * @param config cookies-related configuration containing information about which cookies need to be appended to the key. * @note Add the cookies to "hier-part" (RFC 3986), always sort them in the cache key. */

 * @note Add the cookies to "hier-part" (RFC 3986), always sort them in the cache key.
 */
bool
getCookieByName(TSHttpTxn /* txn ATS_UNUSED */, TSMBuffer buf, TSMLoc hdrs, const String &cookieName, String &cookieValue)
{
  TSMLoc field;

  for (field = TSMimeHdrFieldFind(buf, hdrs, TS_MIME_FIELD_COOKIE, TS_MIME_LEN_COOKIE); field != TS_NULL_MLOC;
       field = ::nextDuplicate(buf, hdrs, field)) {
    int count = TSMimeHdrFieldValuesCount(buf, hdrs, field);

    for (int i = 0; i < count; ++i) {
      const char *val;
      int         len;

      val = TSMimeHdrFieldValueStringGet(buf, hdrs, field, i, &len);
      if (val == nullptr || len == 0) {
        continue;
      }

      String             cookie;
      std::istringstream istr(String(val, len));

      while (std::getline(istr, cookie, ';')) {
        ::ltrim(cookie); // Trim leading spaces.

        String::size_type pos(cookie.find_first_of('='));
        String            name(cookie.substr(0, pos == String::npos ? cookie.size() : pos));

        AccessControlDebug("cookie name: %s", name.c_str());

        if (0 == cookieName.compare(name)) {
          cookieValue.assign(cookie.substr(pos == String::npos ? pos : pos + 1));
          return true;
        }
      }
    }
  }
  return false;
}

/**
 * @brief Handle token validation failures.