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118 lines
5.3 KiB
C
118 lines
5.3 KiB
C
// Copyright 2011 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file intentionally does not have header guards, it's included
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// inside a macro to generate values. The following line silences a
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// presubmit warning that would otherwise be triggered by this:
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// no-include-guard-because-multiply-included
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// NOLINT(build/header_guard)
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// This is the list of load flags and their values. For the enum values,
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// include the file "net/base/load_flags.h".
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//
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// Here we define the values using a macro LOAD_FLAG, so it can be
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// expanded differently in some places (for example, to automatically
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// map a load flag value to its symbolic name).
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LOAD_FLAG(NORMAL, 0)
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// This is "normal reload", meaning an if-none-match/if-modified-since query.
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// All other caches are used as normal.
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LOAD_FLAG(VALIDATE_CACHE, 1 << 0)
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// This is "shift-reload", meaning a "pragma: no-cache" end-to-end fetch.
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// The response is not read from the HTTP cache but is written to the cache,
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// unlike in `DISABLE_CACHE`. All other caches are used as normal.
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LOAD_FLAG(BYPASS_CACHE, 1 << 1)
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// This is a back/forward style navigation where the cached content should
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// be preferred over any protocol specific cache validation.
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LOAD_FLAG(SKIP_CACHE_VALIDATION, 1 << 2)
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// This is a navigation that will fail if it cannot serve the requested
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// resource from the cache (or some equivalent local store).
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LOAD_FLAG(ONLY_FROM_CACHE, 1 << 3)
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// This is a request whose response will not be read or written to the HTTP
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// cache. It does not impact the cache-related HTTP request headers. All other
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// caches are used as normal.
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LOAD_FLAG(DISABLE_CACHE, 1 << 4)
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// If present, causes dependent network fetches (AIA, CRLs, OCSP) to be
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// skipped on secure connections.
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LOAD_FLAG(DISABLE_CERT_NETWORK_FETCHES, 1 << 5)
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// This load will not make any changes to cookies, including storing new
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// cookies or updating existing ones.
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// Deprecated. Use URLRequest::set_allow_credentials instead. See
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// https://crbug.com/799935.
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LOAD_FLAG(DO_NOT_SAVE_COOKIES, 1 << 6)
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// Do not resolve proxies. This override is used when downloading PAC files
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// to avoid having a circular dependency.
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LOAD_FLAG(BYPASS_PROXY, 1 << 7)
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// DO NOT USE THIS FLAG
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// The network stack should not have frame level knowledge. Any pre-connect
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// or pre-resolution requiring that knowledge should be done from the
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// stack embedder.
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// Indicate that this is a top level frame, so that we don't assume it is a
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// subresource and speculatively pre-connect or pre-resolve when a referring
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// page is loaded.
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LOAD_FLAG(MAIN_FRAME_DEPRECATED, 1 << 8)
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// Indicates that this load was motivated by the rel=prefetch feature, or the
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// speculationrules prefetch feature, and is (in theory) not intended for the
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// current frame.
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LOAD_FLAG(PREFETCH, 1 << 9)
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// Indicates that this load could cause deadlock if it has to wait for another
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// request. Overrides socket limits. Must always be used with MAXIMUM_PRIORITY.
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LOAD_FLAG(IGNORE_LIMITS, 1 << 10)
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// Indicates that the username:password portion of the URL should not
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// be honored, but that other forms of authority may be used.
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LOAD_FLAG(DO_NOT_USE_EMBEDDED_IDENTITY, 1 << 11)
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// Indicates that this request is not to be migrated to a cellular network when
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// QUIC connection migration is enabled.
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LOAD_FLAG(DISABLE_CONNECTION_MIGRATION_TO_CELLULAR, 1 << 12)
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// Indicates that the cache should not check that the request matches the
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// response's vary header.
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LOAD_FLAG(SKIP_VARY_CHECK, 1 << 13)
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// The creator of this URLRequest wishes to receive stale responses when allowed
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// by the "Cache-Control: stale-while-revalidate" directive and is able to issue
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// an async revalidation to update the cache. If the callee needs to revalidate
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// the resource |async_revalidation_requested| attribute will be set on the
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// associated HttpResponseInfo. If indicated the callee should revalidate the
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// resource by issuing a new request without this flag set. If the revalidation
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// does not complete in 60 seconds, the cache treat the stale resource as
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// invalid, as it did not specify stale-while-revalidate.
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LOAD_FLAG(SUPPORT_ASYNC_REVALIDATION, 1 << 14)
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// Indicates that a prefetch request's cached response should be restricted in
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// in terms of reuse. The cached response can only be reused by requests with
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// the LOAD_CAN_USE_RESTRICTED_PREFETCH_FOR_MAIN_FRAME load flag.
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LOAD_FLAG(RESTRICTED_PREFETCH_FOR_MAIN_FRAME, 1 << 15)
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// This flag must be set on requests that are allowed to reuse cache entries
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// that are marked as RESTRICTED_PREFETCH_FOR_MAIN_FRAME. Requests without this
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// flag cannot reuse restricted prefetch responses in the cache. Restricted
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// response reuse is considered privileged, and therefore this flag must only be
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// set from a trusted process.
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LOAD_FLAG(CAN_USE_RESTRICTED_PREFETCH_FOR_MAIN_FRAME, 1 << 16)
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// Indicates that this load can use a shared dictionary.
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LOAD_FLAG(CAN_USE_SHARED_DICTIONARY, 1 << 17)
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// Indicates that CAN_USE_SHARED_DICTIONARY must be disabled after a redirect to
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// another origin.
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LOAD_FLAG(DISABLE_SHARED_DICTIONARY_AFTER_CROSS_ORIGIN_REDIRECT, 1 << 18)
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// This flag is used to bypass HSTS upgrades. This flag must be set for AIA,
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// CRL, and OCSP requests in order to prevent circular dependencies.
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LOAD_FLAG(SHOULD_BYPASS_HSTS, 1 << 19)
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