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75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ReferrerPolicy_h__
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#define ReferrerPolicy_h__
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#include "nsStringGlue.h"
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#include "nsIHttpChannel.h"
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namespace mozilla { namespace net {
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enum ReferrerPolicy {
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/* spec tokens: never no-referrer */
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RP_No_Referrer = nsIHttpChannel::REFERRER_POLICY_NO_REFERRER,
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/* spec tokens: origin */
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RP_Origin = nsIHttpChannel::REFERRER_POLICY_ORIGIN,
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/* spec tokens: default no-referrer-when-downgrade */
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RP_No_Referrer_When_Downgrade = nsIHttpChannel::REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE,
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RP_Default = nsIHttpChannel::REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE,
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/* spec tokens: origin-when-crossorigin */
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RP_Origin_When_Crossorigin = nsIHttpChannel::REFERRER_POLICY_ORIGIN_WHEN_XORIGIN,
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/* spec tokens: always unsafe-url */
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RP_Unsafe_URL = nsIHttpChannel::REFERRER_POLICY_UNSAFE_URL
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};
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inline ReferrerPolicy
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ReferrerPolicyFromString(const nsAString& content)
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{
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// This is implemented step by step as described in the Referrer Policy
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// specification, section 6.4 "Determine token's Policy".
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if (content.LowerCaseEqualsLiteral("never") ||
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content.LowerCaseEqualsLiteral("no-referrer")) {
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return RP_No_Referrer;
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}
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if (content.LowerCaseEqualsLiteral("origin")) {
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return RP_Origin;
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}
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if (content.LowerCaseEqualsLiteral("default") ||
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content.LowerCaseEqualsLiteral("no-referrer-when-downgrade")) {
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return RP_No_Referrer_When_Downgrade;
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}
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if (content.LowerCaseEqualsLiteral("origin-when-crossorigin")) {
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return RP_Origin_When_Crossorigin;
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}
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if (content.LowerCaseEqualsLiteral("always") ||
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content.LowerCaseEqualsLiteral("unsafe-url")) {
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return RP_Unsafe_URL;
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}
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// Spec says if none of the previous match, use No_Referrer.
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return RP_No_Referrer;
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}
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inline bool
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IsValidReferrerPolicy(const nsAString& content)
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{
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return content.LowerCaseEqualsLiteral("never")
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|| content.LowerCaseEqualsLiteral("no-referrer")
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|| content.LowerCaseEqualsLiteral("origin")
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|| content.LowerCaseEqualsLiteral("default")
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|| content.LowerCaseEqualsLiteral("no-referrer-when-downgrade")
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|| content.LowerCaseEqualsLiteral("origin-when-crossorigin")
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|| content.LowerCaseEqualsLiteral("always")
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|| content.LowerCaseEqualsLiteral("unsafe-url");
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}
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} } //namespace mozilla::net
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#endif
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