1/*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32
33#include "core/fileapi/BlobURL.h"
34
35#include "core/platform/UUID.h"
36#include "weborigin/KURL.h"
37#include "weborigin/SecurityOrigin.h"
38#include "wtf/text/WTFString.h"
39
40namespace WebCore {
41
42const char BlobURL::kBlobProtocol[] = "blob";
43
44KURL BlobURL::createPublicURL(SecurityOrigin* securityOrigin)
45{
46    ASSERT(securityOrigin);
47    return createBlobURL(securityOrigin->toString());
48}
49
50KURL BlobURL::createInternalURL()
51{
52    return createBlobURL("blobinternal://");
53}
54
55String BlobURL::getOrigin(const KURL& url)
56{
57    ASSERT(url.protocolIs(kBlobProtocol));
58
59    unsigned startIndex = url.pathStart();
60    unsigned endIndex = url.pathAfterLastSlash();
61    return url.string().substring(startIndex, endIndex - startIndex - 1);
62}
63
64String BlobURL::getIdentifier(const KURL& url)
65{
66    ASSERT(url.protocolIs(kBlobProtocol));
67
68    unsigned startIndex = url.pathAfterLastSlash();
69    return url.string().substring(startIndex);
70}
71
72KURL BlobURL::createBlobURL(const String& originString)
73{
74    ASSERT(!originString.isEmpty());
75    String urlString = "blob:" + encodeWithURLEscapeSequences(originString) + '/' + createCanonicalUUIDString();
76    return KURL::createIsolated(ParsedURLString, urlString);
77}
78
79} // namespace WebCore
80