webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 112 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/fetch/FetchBodyOwner.h b/Source/WebCore/Modules/fetch/FetchBodyOwner.h
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+++ b/Source/WebCore/Modules/fetch/FetchBodyOwner.h
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+/*
+ * Copyright (C) 2016 Canon Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted, provided that the following conditions
+ * are required to be met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Canon Inc. nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CANON INC. AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL CANON INC. AND ITS CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#if ENABLE(FETCH_API)
+
+#include "ActiveDOMObject.h"
+#include "FetchBody.h"
+#include "FetchHeaders.h"
+#include "FetchLoaderClient.h"
+#include "FetchResponseSource.h"
+
+namespace WebCore {
+
+class FetchLoader;
+
+class FetchBodyOwner : public RefCounted<FetchBodyOwner>, public ActiveDOMObject {
+public:
+    FetchBodyOwner(ScriptExecutionContext&, std::optional<FetchBody>&&, Ref<FetchHeaders>&&);
+
+    // Exposed Body API
+    bool isDisturbed() const { return m_isDisturbed; };
+
+    void arrayBuffer(Ref<DeferredPromise>&&);
+    void blob(Ref<DeferredPromise>&&);
+    void formData(Ref<DeferredPromise>&&);
+    void json(Ref<DeferredPromise>&&);
+    void text(Ref<DeferredPromise>&&);
+
+    bool isDisturbedOrLocked() const;
+
+    void loadBlob(const Blob&, FetchBodyConsumer*);
+
+    bool isActive() const { return !!m_blobLoader; }
+
+protected:
+    const FetchBody& body() const { return *m_body; }
+    FetchBody& body() { return *m_body; }
+    bool isBodyNull() const { return !m_body; }
+    void cloneBody(const FetchBodyOwner&);
+
+    void extractBody(ScriptExecutionContext&, JSC::ExecState&, JSC::JSValue);
+    void updateContentType();
+    void consumeOnceLoadingFinished(FetchBodyConsumer::Type, Ref<DeferredPromise>&&);
+
+    // ActiveDOMObject API
+    void stop() override;
+
+    void setDisturbed() { m_isDisturbed = true; }
+
+private:
+    // Blob loading routines
+    void blobChunk(const char*, size_t);
+    void blobLoadingSucceeded();
+    void blobLoadingFailed();
+    void finishBlobLoading();
+
+    struct BlobLoader final : FetchLoaderClient {
+        BlobLoader(FetchBodyOwner&);
+
+        // FetchLoaderClient API
+        void didReceiveResponse(const ResourceResponse&) final;
+        void didReceiveData(const char* data, size_t size) final { owner.blobChunk(data, size); }
+        void didFail() final;
+        void didSucceed() final { owner.blobLoadingSucceeded(); }
+
+        FetchBodyOwner& owner;
+        std::unique_ptr<FetchLoader> loader;
+    };
+
+protected:
+    std::optional<FetchBody> m_body;
+    String m_contentType;
+    bool m_isDisturbed { false };
+#if ENABLE(READABLE_STREAM_API)
+    RefPtr<FetchResponseSource> m_readableStreamSource;
+#endif
+    Ref<FetchHeaders> m_headers;
+
+private:
+    std::optional<BlobLoader> m_blobLoader;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(FETCH_API)