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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
125 lines
4.7 KiB
C++
125 lines
4.7 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_FETCH_RESOURCELOADEROPTIONS_H_
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#define SKY_ENGINE_CORE_FETCH_RESOURCELOADEROPTIONS_H_
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#include "sky/engine/core/fetch/FetchInitiatorInfo.h"
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namespace blink {
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enum DataBufferingPolicy {
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BufferData,
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DoNotBufferData
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};
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enum RequestInitiatorContext {
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DocumentContext,
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};
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enum StoredCredentials {
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AllowStoredCredentials,
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DoNotAllowStoredCredentials
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};
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// APIs like XMLHttpRequest and EventSource let the user decide
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// whether to send credentials, but they're always sent for
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// same-origin requests. Additional information is needed to handle
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// cross-origin redirects correctly.
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enum CredentialRequest {
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ClientRequestedCredentials,
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ClientDidNotRequestCredentials
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};
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// FIXME(sky): remove
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enum SynchronousPolicy {
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RequestAsynchronously
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};
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// A resource fetch can be marked as being CORS enabled. The loader
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// must perform an access check upon seeing the response.
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enum CORSEnabled {
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NotCORSEnabled,
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IsCORSEnabled
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};
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struct ResourceLoaderOptions {
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ResourceLoaderOptions()
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: dataBufferingPolicy(BufferData)
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, allowCredentials(DoNotAllowStoredCredentials)
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, credentialsRequested(ClientDidNotRequestCredentials)
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, requestInitiatorContext(DocumentContext)
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, synchronousPolicy(RequestAsynchronously)
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, corsEnabled(NotCORSEnabled)
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{
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}
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ResourceLoaderOptions(
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DataBufferingPolicy dataBufferingPolicy,
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StoredCredentials allowCredentials,
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CredentialRequest credentialsRequested,
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RequestInitiatorContext requestInitiatorContext)
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: dataBufferingPolicy(dataBufferingPolicy)
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, allowCredentials(allowCredentials)
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, credentialsRequested(credentialsRequested)
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, requestInitiatorContext(requestInitiatorContext)
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, synchronousPolicy(RequestAsynchronously)
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, corsEnabled(NotCORSEnabled)
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{
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}
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// Answers the question "can a separate request with these
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// different options be re-used" (e.g. preload request)
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// The safe (but possibly slow) answer is always false.
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bool canReuseRequest(const ResourceLoaderOptions& other) const
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{
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// dataBufferingPolicy differences are believed to be safe for re-use.
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// FIXME: check allowCredentials.
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// FIXME: check credentialsRequested.
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// FIXME: check contentSecurityPolicyOption.
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// initiatorInfo is purely informational and should be benign for re-use.
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// requestInitiatorContext is benign (indicates document vs. worker)
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// synchronousPolicy (safe to re-use an async XHR response for sync, etc.)
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return corsEnabled == other.corsEnabled;
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}
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DataBufferingPolicy dataBufferingPolicy;
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StoredCredentials allowCredentials; // Whether HTTP credentials and cookies are sent with the request.
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CredentialRequest credentialsRequested; // Whether the client (e.g. XHR) wanted credentials in the first place.
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FetchInitiatorInfo initiatorInfo;
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RequestInitiatorContext requestInitiatorContext;
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SynchronousPolicy synchronousPolicy;
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CORSEnabled corsEnabled; // If the resource is loaded out-of-origin, whether or not to use CORS.
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};
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} // namespace blink
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#endif // SKY_ENGINE_CORE_FETCH_RESOURCELOADEROPTIONS_H_
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