src/third_party/WebKit/Source/modules/quota/StorageQuota.cpp

   1 /*
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   6  * met:
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   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
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  16  * this software without specific prior written permission.
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  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  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
  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
  73 StorageQuota::StorageQuota()
  74 {
  75     ScriptWrappable::init(this);
  76 }
  77
  78 Vector<String> StorageQuota::supportedTypes() const
  79 {
  80     Vector<String> types;
  81     for (size_t i = 0; i < WTF_ARRAY_LENGTH(storageTypeMappings); ++i)
  82         types.append(storageTypeMappings[i].name);
  83     return types;
  84 }
  85
  86 ScriptPromise StorageQuota::queryInfo(ScriptState* scriptState, String type)
  87 {
  88     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
  89     ScriptPromise promise = resolver->promise();
  90
  91     SecurityOrigin* securityOrigin = scriptState->executionContext()->securityOrigin();
  92     if (securityOrigin->isUnique()) {
  93         resolver->reject(DOMError::create(NotSupportedError));
  94         return promise;
  95     }
  96
  97     KURL storagePartition = KURL(KURL(), securityOrigin->toString());
  98     OwnPtr<StorageQuotaCallbacks> callbacks = StorageQuotaCallbacksImpl::create(resolver);
  99     Platform::current()->queryStorageUsageAndQuota(storagePartition, stringToStorageQuotaType(type), callbacks.release());
 100     return promise;
 101 }
 102
 103 ScriptPromise StorageQuota::requestPersistentQuota(ScriptState* scriptState, unsigned long long newQuota)
 104 {
 105     StorageQuotaClient* client = StorageQuotaClient::from(scriptState->executionContext());
 106     if (!client) {
 107         RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
 108         ScriptPromise promise = resolver->promise();
 109         resolver->reject(DOMError::create(NotSupportedError));
 110         return promise;
 111     }
 112
 113     return client->requestPersistentQuota(scriptState, newQuota);
 114 }
 115
 116 } // namespace blink