164 lines
4.7 KiB
C++
164 lines
4.7 KiB
C++
/*
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* Copyright (C) 2010 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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#include "config.h"
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#include "BlobURL.h"
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#include "Document.h"
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#include "SecurityOrigin.h"
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#include "ThreadableBlobRegistry.h"
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#include <wtf/URL.h>
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#include <wtf/UUID.h>
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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const char* kBlobProtocol = "blob";
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URL BlobURL::createPublicURL(SecurityOrigin* securityOrigin)
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{
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ASSERT(securityOrigin);
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return createBlobURL(securityOrigin->toString());
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}
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URL BlobURL::createInternalURL()
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{
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return createBlobURL("blobinternal://");
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}
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static const Document* blobOwner(const SecurityOrigin& blobOrigin)
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{
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if (!isMainThread())
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return nullptr;
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for (const auto* document : Document::allDocuments()) {
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if (&document->securityOrigin() == &blobOrigin)
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return document;
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}
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return nullptr;
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}
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URL BlobURL::getOriginURL(const URL& url)
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{
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ASSERT(url.protocolIs(kBlobProtocol));
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if (auto blobOrigin = ThreadableBlobRegistry::getCachedOrigin(url)) {
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if (auto* document = blobOwner(*blobOrigin))
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return document->url();
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}
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return SecurityOrigin::extractInnerURL(url);
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}
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bool BlobURL::isSecureBlobURL(const URL& url)
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{
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ASSERT(url.protocolIs(kBlobProtocol));
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// As per https://github.com/w3c/webappsec-mixed-content/issues/41, Blob URL is secure if the document that created it is secure.
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if (auto origin = ThreadableBlobRegistry::getCachedOrigin(url)) {
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if (auto* document = blobOwner(*origin))
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return document->isSecureContext();
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}
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return SecurityOrigin::isSecure(url);
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}
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URL BlobURL::createBlobURL(const String& originString)
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{
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ASSERT(!originString.isEmpty());
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String urlString = "blob:" + originString + '/' + createCanonicalUUIDString();
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return URL({ }, urlString);
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}
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BlobURLHandle::BlobURLHandle(const BlobURLHandle& other)
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: m_url(other.m_url.isolatedCopy())
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{
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registerBlobURLHandleIfNecessary();
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}
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BlobURLHandle::BlobURLHandle(const URL& url)
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: m_url(url.isolatedCopy())
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{
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ASSERT(m_url.protocolIsBlob());
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registerBlobURLHandleIfNecessary();
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}
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BlobURLHandle::~BlobURLHandle()
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{
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unregisterBlobURLHandleIfNecessary();
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}
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void BlobURLHandle::registerBlobURLHandleIfNecessary()
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{
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if (m_url.protocolIsBlob())
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ThreadableBlobRegistry::registerBlobURLHandle(m_url);
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}
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void BlobURLHandle::unregisterBlobURLHandleIfNecessary()
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{
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if (m_url.protocolIsBlob())
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ThreadableBlobRegistry::unregisterBlobURLHandle(m_url);
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}
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BlobURLHandle& BlobURLHandle::operator=(const BlobURLHandle& other)
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{
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if (this == &other)
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return *this;
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unregisterBlobURLHandleIfNecessary();
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m_url = other.m_url.isolatedCopy();
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registerBlobURLHandleIfNecessary();
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return *this;
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}
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void BlobURLHandle::clear()
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{
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unregisterBlobURLHandleIfNecessary();
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m_url = { };
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}
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BlobURLHandle& BlobURLHandle::operator=(BlobURLHandle&& other)
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{
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unregisterBlobURLHandleIfNecessary();
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m_url = std::exchange(other.m_url, { });
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return *this;
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}
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BlobURLHandle& BlobURLHandle::operator=(const URL& url)
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{
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ASSERT(url.protocolIsBlob());
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unregisterBlobURLHandleIfNecessary();
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m_url = url.isolatedCopy();
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registerBlobURLHandleIfNecessary();
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return *this;
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}
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} // namespace WebCore
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