private boolean detectKeepAlive(Buf buf, RapidoidHelper helper, Bytes bytes, BufRange protocol, BufRanges headers) { IntWrap result = helper.integers[0]; boolean keepAliveByDefault = protocol.isEmpty() || bytes.get(protocol.last()) != '0'; // e.g. HTTP/1.1 // try to detect the opposite of the default if (keepAliveByDefault) { buf.scanLnLn(headers.reset(), result, (byte) 's', (byte) 'e'); // clo[se] } else { buf.scanLnLn(headers.reset(), result, (byte) 'v', (byte) 'e'); // keep-ali[ve] } int possibleConnHeaderPos = result.value; if (possibleConnHeaderPos < 0) return keepAliveByDefault; // no evidence of the opposite BufRange possibleConnHdr = headers.get(possibleConnHeaderPos); if (BytesUtil.startsWith(bytes, possibleConnHdr, CONNECTION, true)) { return !keepAliveByDefault; // detected the opposite of the default } return isKeepAlive(bytes, headers, helper, keepAliveByDefault); }
private boolean detectKeepAlive(Buf buf, RapidoidHelper helper, Bytes bytes, BufRange protocol, BufRanges headers) { IntWrap result = helper.integers[0]; boolean keepAliveByDefault = protocol.isEmpty() || bytes.get(protocol.last()) != '0'; // e.g. HTTP/1.1 // try to detect the opposite of the default if (keepAliveByDefault) { buf.scanLnLn(headers.reset(), result, (byte) 's', (byte) 'e'); // clo[se] } else { buf.scanLnLn(headers.reset(), result, (byte) 'v', (byte) 'e'); // keep-ali[ve] } int possibleConnHeaderPos = result.value; if (possibleConnHeaderPos < 0) return keepAliveByDefault; // no evidence of the opposite BufRange possibleConnHdr = headers.get(possibleConnHeaderPos); if (BytesUtil.startsWith(bytes, possibleConnHdr, CONNECTION, true)) { return !keepAliveByDefault; // detected the opposite of the default } return isKeepAlive(bytes, headers, helper, keepAliveByDefault); }