| 1 | /*
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| 2 | * Copyright (C) 2014 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | * 1. Redistributions of source code must retain the above copyright
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| 8 | * notice, this list of conditions and the following disclaimer.
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer in the
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| 11 | * documentation and/or other materials provided with the distribution.
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| 12 | *
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| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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| 14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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| 15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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| 17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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| 23 | * THE POSSIBILITY OF SUCH DAMAGE.
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| 24 | */
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| 25 |
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| 26 | #include "config.h"
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| 27 | #include "LegacySessionStateCoding.h"
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| 28 |
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| 29 | #include "APIData.h"
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| 30 | #include "DataReference.h"
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| 31 | #include "Decoder.h"
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| 32 | #include "Encoder.h"
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| 33 | #include "MessageNames.h"
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| 34 | #include "SessionState.h"
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| 35 | #include "WebCoreArgumentCoders.h"
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| 36 |
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| 37 | namespace WebKit {
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| 38 |
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| 39 | RefPtr<API::Data> encodeLegacySessionState(const SessionState& sessionState)
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| 40 | {
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| 41 | // FIXME: This should use WTF::Persistence::Encoder instead.
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| 42 | IPC::Encoder encoder(IPC::MessageName::LegacySessionState, 0);
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| 43 | encoder << sessionState.backForwardListState;
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| 44 | encoder << sessionState.renderTreeSize;
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| 45 | encoder << sessionState.provisionalURL;
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| 46 | return API::Data::create(encoder.buffer(), encoder.bufferSize());
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| 47 | }
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| 48 |
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| 49 | bool decodeLegacySessionState(const uint8_t* data, size_t dataSize, SessionState& sessionState)
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| 50 | {
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| 51 | auto decoder = IPC::Decoder::create(data, dataSize, { });
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| 52 | if (!decoder)
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| 53 | return false;
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| 54 |
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| 55 | std::optional<BackForwardListState> backForwardListState;
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| 56 | *decoder >> backForwardListState;
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| 57 | if (!backForwardListState)
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| 58 | return false;
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| 59 | sessionState.backForwardListState = WTFMove(*backForwardListState);
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| 60 |
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| 61 | std::optional<uint64_t> renderTreeSize;
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| 62 | *decoder >> renderTreeSize;
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| 63 | if (!renderTreeSize)
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| 64 | return false;
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| 65 | sessionState.renderTreeSize = *renderTreeSize;
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| 66 |
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| 67 | std::optional<URL> provisionalURL;
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| 68 | *decoder >> provisionalURL;
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| 69 | if (!provisionalURL)
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| 70 | return false;
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| 71 | sessionState.provisionalURL = WTFMove(*provisionalURL);
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| 72 |
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| 73 | return true;
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| 74 | }
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| 75 |
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| 76 | } // namespace WebKit
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