Source/WebCore/fileapi/BlobURL.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"

#include "BlobURL.h"

#include <wtf/URL.h>
#include "SecurityOrigin.h"
#include <wtf/UUID.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

const char* kBlobProtocol = "blob";

URL BlobURL::createPublicURL(SecurityOrigin* securityOrigin)
{
    ASSERT(securityOrigin);
    return createBlobURL(securityOrigin->toString());
}

URL BlobURL::createInternalURL()
{
    return createBlobURL("blobinternal://");
}

String BlobURL::getOrigin(const URL& url)
{
    ASSERT(url.protocolIs(kBlobProtocol));

    unsigned startIndex = url.pathStart();
    unsigned endIndex = url.pathAfterLastSlash();
    return url.string().substring(startIndex, endIndex - startIndex - 1);
}

String BlobURL::getIdentifier(const URL& url)
{
    ASSERT(url.protocolIs(kBlobProtocol));

    unsigned startIndex = url.pathAfterLastSlash();
    return url.string().substring(startIndex);
}

URL BlobURL::createBlobURL(const String& originString)
{
    ASSERT(!originString.isEmpty());
    String urlString = "blob:" + originString + '/' + createCanonicalUUIDString();
    return URL({ }, urlString);
}

} // namespace WebCore