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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ | 29 */ |
| 30 | 30 |
| 31 #include "core/fileapi/Blob.h" | 31 #include "core/fileapi/Blob.h" |
| 32 | 32 |
| 33 #include <memory> |
| 33 #include "bindings/core/v8/ExceptionState.h" | 34 #include "bindings/core/v8/ExceptionState.h" |
| 35 #include "bindings/core/v8/ScriptState.h" |
| 34 #include "core/dom/DOMURL.h" | 36 #include "core/dom/DOMURL.h" |
| 35 #include "core/dom/ExceptionCode.h" | 37 #include "core/dom/ExceptionCode.h" |
| 36 #include "core/dom/ExecutionContext.h" | 38 #include "core/dom/ExecutionContext.h" |
| 37 #include "core/fileapi/BlobPropertyBag.h" | 39 #include "core/fileapi/BlobPropertyBag.h" |
| 38 #include "core/frame/UseCounter.h" | 40 #include "core/frame/UseCounter.h" |
| 39 #include "platform/blob/BlobRegistry.h" | 41 #include "platform/blob/BlobRegistry.h" |
| 40 #include "platform/blob/BlobURL.h" | 42 #include "platform/blob/BlobURL.h" |
| 41 #include <memory> | |
| 42 | 43 |
| 43 namespace blink { | 44 namespace blink { |
| 44 | 45 |
| 45 namespace { | 46 namespace { |
| 46 | 47 |
| 47 class BlobURLRegistry final : public URLRegistry { | 48 class BlobURLRegistry final : public URLRegistry { |
| 48 public: | 49 public: |
| 49 // SecurityOrigin is passed together with KURL so that the registry can | 50 // SecurityOrigin is passed together with KURL so that the registry can |
| 50 // save it for entries from whose KURL the origin is not recoverable by | 51 // save it for entries from whose KURL the origin is not recoverable by |
| 51 // using BlobURL::getOrigin(). | 52 // using BlobURL::getOrigin(). |
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| 186 long long size = this->size(); | 187 long long size = this->size(); |
| 187 clampSliceOffsets(size, start, end); | 188 clampSliceOffsets(size, start, end); |
| 188 | 189 |
| 189 long long length = end - start; | 190 long long length = end - start; |
| 190 std::unique_ptr<BlobData> blobData = BlobData::create(); | 191 std::unique_ptr<BlobData> blobData = BlobData::create(); |
| 191 blobData->setContentType(contentType); | 192 blobData->setContentType(contentType); |
| 192 blobData->appendBlob(m_blobDataHandle, start, length); | 193 blobData->appendBlob(m_blobDataHandle, start, length); |
| 193 return Blob::create(BlobDataHandle::create(std::move(blobData), length)); | 194 return Blob::create(BlobDataHandle::create(std::move(blobData), length)); |
| 194 } | 195 } |
| 195 | 196 |
| 196 void Blob::close(ExecutionContext* executionContext, | 197 void Blob::close(ScriptState* scriptState, ExceptionState& exceptionState) { |
| 197 ExceptionState& exceptionState) { | |
| 198 if (isClosed()) { | 198 if (isClosed()) { |
| 199 exceptionState.throwDOMException(InvalidStateError, | 199 exceptionState.throwDOMException(InvalidStateError, |
| 200 "Blob has been closed."); | 200 "Blob has been closed."); |
| 201 return; | 201 return; |
| 202 } | 202 } |
| 203 | 203 |
| 204 // Dereferencing a Blob that has been closed should result in | 204 // Dereferencing a Blob that has been closed should result in |
| 205 // a network error. Revoke URLs registered against it through | 205 // a network error. Revoke URLs registered against it through |
| 206 // its UUID. | 206 // its UUID. |
| 207 DOMURL::revokeObjectUUID(executionContext, uuid()); | 207 DOMURL::revokeObjectUUID(scriptState->getExecutionContext(), uuid()); |
| 208 | 208 |
| 209 // A Blob enters a 'readability state' of closed, where it will report its | 209 // A Blob enters a 'readability state' of closed, where it will report its |
| 210 // size as zero. Blob and FileReader operations now throws on | 210 // size as zero. Blob and FileReader operations now throws on |
| 211 // being passed a Blob in that state. Downstream uses of closed Blobs | 211 // being passed a Blob in that state. Downstream uses of closed Blobs |
| 212 // (e.g., XHR.send()) consider them as empty. | 212 // (e.g., XHR.send()) consider them as empty. |
| 213 std::unique_ptr<BlobData> blobData = BlobData::create(); | 213 std::unique_ptr<BlobData> blobData = BlobData::create(); |
| 214 blobData->setContentType(type()); | 214 blobData->setContentType(type()); |
| 215 m_blobDataHandle = BlobDataHandle::create(std::move(blobData), 0); | 215 m_blobDataHandle = BlobDataHandle::create(std::move(blobData), 0); |
| 216 m_isClosed = true; | 216 m_isClosed = true; |
| 217 } | 217 } |
| 218 | 218 |
| 219 void Blob::appendTo(BlobData& blobData) const { | 219 void Blob::appendTo(BlobData& blobData) const { |
| 220 blobData.appendBlob(m_blobDataHandle, 0, m_blobDataHandle->size()); | 220 blobData.appendBlob(m_blobDataHandle, 0, m_blobDataHandle->size()); |
| 221 } | 221 } |
| 222 | 222 |
| 223 URLRegistry& Blob::registry() const { | 223 URLRegistry& Blob::registry() const { |
| 224 return BlobURLRegistry::registry(); | 224 return BlobURLRegistry::registry(); |
| 225 } | 225 } |
| 226 | 226 |
| 227 } // namespace blink | 227 } // namespace blink |
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