src/http/StateFlags.h

   1 /*
   2  * Copyright (C) 1996-2020 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_SRC_HTTP_STATEFLAGS_H
  10 #define SQUID_SRC_HTTP_STATEFLAGS_H
  11
  12 namespace Http
  13 {
  14
  15 class StateFlags
  16 {
  17 public:
  18     unsigned int front_end_https = 0; ///< send "Front-End-Https: On" header (off/on/auto=2)
  19     bool keepalive = false; ///< whether to keep the connection persistent
  20     bool only_if_cached = false;
  21
  22     /// Whether we are processing an HTTP 1xx control message.
  23     bool handling1xx = false;
  24
  25     /// Whether we received an HTTP 101 (Switching Protocols) control message.
  26     /// Implies true handling1xx, but the serverSwitchedProtocols state is
  27     /// permanent/final while handling of other control messages usually stops.
  28     bool serverSwitchedProtocols = false;
  29
  30     bool headers_parsed = false;
  31
  32     /// Whether the next TCP hop is a cache_peer, including originserver
  33     bool peering = false;
  34
  35     /// Whether this request is being forwarded inside a CONNECT tunnel
  36     /// through a [non-originserver] cache_peer; implies peering and toOrigin
  37     bool tunneling = false;
  38
  39     /// Whether the next HTTP hop is an origin server, including an
  40     /// originserver cache_peer. The three possible cases are:
  41     /// -# a direct TCP/HTTP connection to an origin server,
  42     /// -# a direct TCP/HTTP connection to an originserver cache_peer, and
  43     /// -# a CONNECT tunnel through a [non-originserver] cache_peer [to an origin server]
  44     /// Thus, toOrigin is false only when the HTTP request is sent over
  45     ///    a direct TCP/HTTP connection to a non-originserver cache_peer.
  46     bool toOrigin = false;
  47
  48     /// Whether the next TCP/HTTP hop is an originserver cache_peer.
  49     bool toOriginPeer() const { return toOrigin && peering && !tunneling; }
  50
  51     bool keepalive_broken = false;
  52     bool abuse_detected = false;
  53     bool request_sent = false;
  54     bool do_next_read = false;
  55     bool chunked = false;           ///< reading a chunked response; TODO: rename
  56     bool chunked_request = false;   ///< writing a chunked request
  57     bool sentLastChunk = false;     ///< do not try to write last-chunk again
  58 };
  59
  60 } // namespace Http
  61
  62 #endif /* SQUID_SRC_HTTP_STATEFLAGS_H */
  63