1/*
2 * Copyright (C) 2014 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#include "modules/quota/StorageQuota.h"
33
34#include "bindings/core/v8/ScriptPromise.h"
35#include "bindings/core/v8/ScriptPromiseResolver.h"
36#include "core/dom/DOMError.h"
37#include "core/dom/ExceptionCode.h"
38#include "core/dom/ExecutionContext.h"
39#include "modules/quota/StorageQuotaCallbacksImpl.h"
40#include "modules/quota/StorageQuotaClient.h"
41#include "platform/weborigin/KURL.h"
42#include "platform/weborigin/SecurityOrigin.h"
43#include "public/platform/Platform.h"
44#include "public/platform/WebStorageQuotaCallbacks.h"
45#include "public/platform/WebStorageQuotaType.h"
46
47namespace blink {
48
49namespace {
50
51struct StorageTypeMapping {
52    WebStorageQuotaType type;
53    const char* const name;
54};
55
56const StorageTypeMapping storageTypeMappings[] = {
57    { WebStorageQuotaTypeTemporary, "temporary" },
58    { WebStorageQuotaTypePersistent, "persistent" },
59};
60
61WebStorageQuotaType stringToStorageQuotaType(const String& type)
62{
63    for (size_t i = 0; i < WTF_ARRAY_LENGTH(storageTypeMappings); ++i) {
64        if (storageTypeMappings[i].name == type)
65            return storageTypeMappings[i].type;
66    }
67    ASSERT_NOT_REACHED();
68    return WebStorageQuotaTypeTemporary;
69}
70
71} // namespace
72
73StorageQuota::StorageQuota()
74{
75}
76
77Vector<String> StorageQuota::supportedTypes() const
78{
79    Vector<String> types;
80    for (size_t i = 0; i < WTF_ARRAY_LENGTH(storageTypeMappings); ++i)
81        types.append(storageTypeMappings[i].name);
82    return types;
83}
84
85ScriptPromise StorageQuota::queryInfo(ScriptState* scriptState, String type)
86{
87    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
88    ScriptPromise promise = resolver->promise();
89
90    SecurityOrigin* securityOrigin = scriptState->executionContext()->securityOrigin();
91    if (securityOrigin->isUnique()) {
92        resolver->reject(DOMError::create(NotSupportedError));
93        return promise;
94    }
95
96    KURL storagePartition = KURL(KURL(), securityOrigin->toString());
97    OwnPtrWillBeRawPtr<StorageQuotaCallbacks> callbacks = StorageQuotaCallbacksImpl::create(resolver);
98    Platform::current()->queryStorageUsageAndQuota(storagePartition, stringToStorageQuotaType(type), callbacks.release());
99    return promise;
100}
101
102ScriptPromise StorageQuota::requestPersistentQuota(ScriptState* scriptState, unsigned long long newQuota)
103{
104    StorageQuotaClient* client = StorageQuotaClient::from(scriptState->executionContext());
105    if (!client) {
106        RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
107        ScriptPromise promise = resolver->promise();
108        resolver->reject(DOMError::create(NotSupportedError));
109        return promise;
110    }
111
112    return client->requestPersistentQuota(scriptState, newQuota);
113}
114
115} // namespace blink
116