Function etag_header

plugins/compress/compress.cc:305–336

FIXME: the etag alteration isn't proper. it should modify the value inside quotes specify a very header..

// FIXME: the etag alteration isn't proper. it should modify the value inside quotes
//       specify a very header..
static TSReturnCode
etag_header(TSMBuffer bufp, TSMLoc hdr_loc)
{
  TSReturnCode ret = TS_SUCCESS;
  TSMLoc       ce_loc;

  ce_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_ETAG, TS_MIME_LEN_ETAG);

  if (ce_loc) {
    int         strl;
    const char *strv = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, ce_loc, -1, &strl);

    // do not alter weak etags.
    // FIXME: consider just making the etag weak for compressed content
    if (strl >= 2) {
      int changetag = 1;
      if ((strv[0] == 'w' || strv[0] == 'W') && strv[1] == '/') {
        changetag = 0;
      }
      if (changetag) {
        ret = TSMimeHdrFieldValueAppend(bufp, hdr_loc, ce_loc, 0, "-df", 3);
      }
    }
    TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
  }

  if (ret != TS_SUCCESS) {
    error("cannot handle the %s header", TS_MIME_FIELD_ETAG);
  }

  return ret;
}

// FIXME: some things are potentially compressible. those responses
static void