net/base/load_flags_list.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This is the list of load flags and their values. For the enum values,
   6 // include the file "net/base/load_flags.h".
   7 //
   8 // Here we define the values using a macro LOAD_FLAG, so it can be
   9 // expanded differently in some places (for example, to automatically
  10 // map a load flag value to its symbolic name).
  11
  12 LOAD_FLAG(NORMAL, 0)
  13
  14 // This is "normal reload", meaning an if-none-match/if-modified-since query
  15 LOAD_FLAG(VALIDATE_CACHE, 1 << 0)
  16
  17 // This is "shift-reload", meaning a "pragma: no-cache" end-to-end fetch
  18 LOAD_FLAG(BYPASS_CACHE, 1 << 1)
  19
  20 // This is a back/forward style navigation where the cached content should
  21 // be preferred over any protocol specific cache validation.
  22 LOAD_FLAG(PREFERRING_CACHE, 1 << 2)
  23
  24 // This is a navigation that will fail if it cannot serve the requested
  25 // resource from the cache (or some equivalent local store).
  26 LOAD_FLAG(ONLY_FROM_CACHE, 1 << 3)
  27
  28 // Indicate that if the request fails at the network level in a way that
  29 // indicates the source is unreachable, the request should fail over
  30 // to as if LOAD_PREFERRING_CACHE had been set.
  31 LOAD_FLAG(FROM_CACHE_IF_OFFLINE, 1 << 4)
  32
  33 // This is a navigation that will not use the cache at all.  It does not
  34 // impact the HTTP request headers.
  35 LOAD_FLAG(DISABLE_CACHE, 1 << 5)
  36
  37 // If present, causes certificate revocation checks to be skipped on secure
  38 // connections.
  39 LOAD_FLAG(DISABLE_CERT_REVOCATION_CHECKING, 1 << 6)
  40
  41 // This load will not make any changes to cookies, including storing new
  42 // cookies or updating existing ones.
  43 LOAD_FLAG(DO_NOT_SAVE_COOKIES, 1 << 7)
  44
  45 // Do not resolve proxies. This override is used when downloading PAC files
  46 // to avoid having a circular dependency.
  47 LOAD_FLAG(BYPASS_PROXY, 1 << 8)
  48
  49 // Indicate this request is for a download, as opposed to viewing.
  50 LOAD_FLAG(IS_DOWNLOAD, 1 << 9)
  51
  52 // Requires EV certificate verification.
  53 LOAD_FLAG(VERIFY_EV_CERT, 1 << 10)
  54
  55 // This load will not send any cookies.
  56 LOAD_FLAG(DO_NOT_SEND_COOKIES, 1 << 11)
  57
  58 // This load will not send authentication data (user name/password)
  59 // to the server (as opposed to the proxy).
  60 LOAD_FLAG(DO_NOT_SEND_AUTH_DATA, 1 << 12)
  61
  62 // This should only be used for testing (set by HttpNetworkTransaction).
  63 LOAD_FLAG(IGNORE_ALL_CERT_ERRORS, 1 << 13)
  64
  65 // Indicate that this is a top level frame, so that we don't assume it is a
  66 // subresource and speculatively pre-connect or pre-resolve when a referring
  67 // page is loaded.
  68 LOAD_FLAG(MAIN_FRAME, 1 << 14)
  69
  70 // Indicate that this is a sub frame, and hence it might have subresources that
  71 // should be speculatively resolved, or even speculatively preconnected.
  72 LOAD_FLAG(SUB_FRAME, 1 << 15)
  73
  74 // If present, intercept actual request/response headers from network stack
  75 // and report them to renderer. This includes cookies, so the flag is only
  76 // respected if renderer has CanReadRawCookies capability in the security
  77 // policy.
  78 LOAD_FLAG(REPORT_RAW_HEADERS, 1 << 16)
  79
  80 // Indicates that this load was motivated by the rel=prefetch feature,
  81 // and is (in theory) not intended for the current frame.
  82 LOAD_FLAG(PREFETCH, 1 << 17)
  83
  84 // Indicates that this is a load that ignores limits and should complete
  85 // immediately.
  86 LOAD_FLAG(IGNORE_LIMITS, 1 << 18)
  87
  88 // Indicates that the operation is somewhat likely to be due to an
  89 // explicit user action. This can be used as a hint to treat the
  90 // request with higher priority.
  91 LOAD_FLAG(MAYBE_USER_GESTURE, 1 << 19)
  92
  93 // Indicates that the username:password portion of the URL should not
  94 // be honored, but that other forms of authority may be used.
  95 LOAD_FLAG(DO_NOT_USE_EMBEDDED_IDENTITY, 1 << 20)
  96
  97 // Send request directly to the origin if the effective proxy is the data
  98 // reduction proxy.
  99 // TODO(rcs): Remove this flag as soon as http://crbug.com/339237 is resolved.
 100 LOAD_FLAG(BYPASS_DATA_REDUCTION_PROXY, 1 << 21)
 101
 102 // Indicates the the request is an asynchronous revalidation.
 103 LOAD_FLAG(ASYNC_REVALIDATION, 1 << 22)