Method getClientState

plugins/esi/esi.cc:266–391

}

void
ContData::getClientState()
{
  TSMBuffer req_bufp;
  TSMLoc    req_hdr_loc;
  if (TSHttpTxnClientReqGet(txnp, &req_bufp, &req_hdr_loc) != TS_SUCCESS) {
    TSError("[esi][%s] Error while retrieving client request", __FUNCTION__);
    return;
  }

  if (!esi_vars) {
    string vars_tag;
    esi_vars = new Variables(contp, gAllowlistCookies);
  }
  if (!data_fetcher) {
    string fetcher_tag;
    data_fetcher = new HttpDataFetcherImpl(contp, client_addr, FETCHER_DEBUG_TAG);
  }
  if (req_bufp && req_hdr_loc) {
    TSMBuffer bufp;
    TSMLoc    url_loc;
    if (TSHttpTxnPristineUrlGet(txnp, &bufp, &url_loc) != TS_SUCCESS) {
      TSError("[esi][%s] Error while retrieving hdr url", __FUNCTION__);
      return;
    }
    if (url_loc) {
      if (request_url) {
        TSfree(request_url);
      }
      int length;
      request_url = TSUrlStringGet(bufp, url_loc, &length);
      Dbg(dbg_ctl_local, "[%s] Got request URL [%s]", __FUNCTION__, request_url ? request_url : "(null)");
      int         query_len;
      const char *query = TSUrlHttpQueryGet(bufp, url_loc, &query_len);
      if (query) {
        esi_vars->populate(query, query_len);
      }
      TSHandleMLocRelease(bufp, req_hdr_loc, url_loc);
    }

    TSMLoc field_loc   = TSMimeHdrFieldGet(req_bufp, req_hdr_loc, 0);
    bool   depth_field = false;
    while (field_loc) {
      TSMLoc      next_field_loc;
      const char *name;
      int         name_len;

      name = TSMimeHdrFieldNameGet(req_bufp, req_hdr_loc, field_loc, &name_len);
      if (name) {
        if (Utils::areEqual(name, name_len, MIME_FIELD_XESIDEPTH, MIME_FIELD_XESIDEPTH_LEN)) {
          unsigned d = TSMimeHdrFieldValueUintGet(req_bufp, req_hdr_loc, field_loc, -1);
          d          = (d + 1) % 10;
          char      dstr[2];
          int const len = snprintf(dstr, sizeof(dstr), "%u", d);

          HttpHeader header;
          if (len != 1) {
            header = HttpHeader(MIME_FIELD_XESIDEPTH, MIME_FIELD_XESIDEPTH_LEN, "1", 1);