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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 
47 namespace blink {
48 
49 namespace {
50 
51 struct StorageTypeMapping {
52     WebStorageQuotaType type;
53     const char* const name;
54 };
55 
56 const StorageTypeMapping storageTypeMappings[] = {
57     { WebStorageQuotaTypeTemporary, "temporary" },
58     { WebStorageQuotaTypePersistent, "persistent" },
59 };
60 
stringToStorageQuotaType(const String & type)61 WebStorageQuotaType 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 
StorageQuota()73 StorageQuota::StorageQuota()
74 {
75 }
76 
supportedTypes() const77 Vector<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 
queryInfo(ScriptState * scriptState,String type)85 ScriptPromise 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 
requestPersistentQuota(ScriptState * scriptState,unsigned long long newQuota)102 ScriptPromise 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