Method fillPostHeader

plugins/esi/esi.cc:393–457

}

void
ContData::fillPostHeader(TSMBuffer bufp, TSMLoc hdr_loc)
{
  int         n_mime_headers = TSMimeHdrFieldsCount(bufp, hdr_loc);
  TSMLoc      field_loc;
  const char *name, *value;
  int         name_len, value_len;
  string      header;
  for (int i = 0; i < n_mime_headers; ++i) {
    field_loc = TSMimeHdrFieldGet(bufp, hdr_loc, i);
    if (!field_loc) {
      Dbg(dbg_ctl_local, "[%s] Error while obtaining header field #%d", __FUNCTION__, i);
      continue;
    }
    name = TSMimeHdrFieldNameGet(bufp, hdr_loc, field_loc, &name_len);
    if (name) {
      if (Utils::areEqual(name, name_len, TS_MIME_FIELD_TRANSFER_ENCODING, TS_MIME_LEN_TRANSFER_ENCODING)) {
        Dbg(dbg_ctl_local, "[%s] Not retaining transfer encoding header", __FUNCTION__);
      } else if (Utils::areEqual(name, name_len, MIME_FIELD_XESI, MIME_FIELD_XESI_LEN)) {
        Dbg(dbg_ctl_local, "[%s] Not retaining 'X-Esi' header", __FUNCTION__);
      } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CONTENT_LENGTH, TS_MIME_LEN_CONTENT_LENGTH)) {
        Dbg(dbg_ctl_local, "[%s] Not retaining 'Content-length' header", __FUNCTION__);
      } else {
        header.assign(name, name_len);
        header.append(": ");
        int n_field_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
        for (int j = 0; j < n_field_values; ++j) {
          value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, j, &value_len);
          if (nullptr == value || !value_len) {
            Dbg(dbg_ctl_local, "[%s] Error while getting value #%d of header [%.*s]", __FUNCTION__, j, name_len, name);
          } else {
            if (Utils::areEqual(name, name_len, TS_MIME_FIELD_VARY, TS_MIME_LEN_VARY) &&
                Utils::areEqual(value, value_len, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING)) {
              Dbg(dbg_ctl_local, "[%s] Not retaining 'vary: accept-encoding' header", __FUNCTION__);
            } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CONTENT_ENCODING, TS_MIME_LEN_CONTENT_ENCODING) &&
                       Utils::areEqual(value, value_len, TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP)) {
              Dbg(dbg_ctl_local, "[%s] Not retaining 'content-encoding: gzip' header", __FUNCTION__);
            } else {
              if (header[header.size() - 2] != ':') {
                header.append(", ");
              }
              header.append(value, value_len);
              checkForCacheHeader(name, name_len, value, value_len, os_response_cacheable);
              if (!os_response_cacheable) {
                Dbg(dbg_ctl_local, "[%s] Header [%.*s] with value [%.*s] is a no-cache header", __FUNCTION__, name_len, name,
                    value_len, value);
                break;
              }
            }
          } // end if got value string
        } // end value iteration

        if (static_cast<int>(header.size()) > (name_len + 2 /* for ': ' */)) {
          header.append("\r\n");
          post_headers.push_back(header);
        }
      } // end if processable header
    } // end if got header name