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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /media/gmp-clearkey/0.1/ClearKeyStorage.cpp | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/gmp-clearkey/0.1/ClearKeyStorage.cpp')
-rw-r--r-- | media/gmp-clearkey/0.1/ClearKeyStorage.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/media/gmp-clearkey/0.1/ClearKeyStorage.cpp b/media/gmp-clearkey/0.1/ClearKeyStorage.cpp new file mode 100644 index 0000000000..1375d33c57 --- /dev/null +++ b/media/gmp-clearkey/0.1/ClearKeyStorage.cpp @@ -0,0 +1,194 @@ +/* + * Copyright 2015, Mozilla Foundation and contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "ClearKeyStorage.h" + +#include <assert.h> +// This include is required in order for content_decryption_module to work +// on Unix systems. +#include <stddef.h> + +#include <vector> + +#include "content_decryption_module.h" + +#include "ArrayUtils.h" +#include "ClearKeyUtils.h" + +using namespace cdm; + +using std::function; +using std::string; +using std::vector; + +class WriteRecordClient : public FileIOClient { + public: + /* + * This function will take the memory ownership of the parameters and + * delete them when done. + */ + static void Write(Host_10* aHost, string& aRecordName, + const vector<uint8_t>& aData, function<void()>&& aOnSuccess, + function<void()>&& aOnFailure) { + WriteRecordClient* client = new WriteRecordClient( + aData, std::move(aOnSuccess), std::move(aOnFailure)); + client->Do(aRecordName, aHost); + } + + void OnOpenComplete(Status aStatus) override { + // If we hit an error, fail. + if (aStatus != Status::kSuccess) { + Done(aStatus); + } else if (mFileIO) { // Otherwise, write our data to the file. + mFileIO->Write(&mData[0], mData.size()); + } + } + + void OnReadComplete(Status aStatus, const uint8_t* aData, + uint32_t aDataSize) override { + // This function should never be called, we only ever write data with this + // client. + assert(false); + } + + void OnWriteComplete(Status aStatus) override { Done(aStatus); } + + private: + explicit WriteRecordClient(const vector<uint8_t>& aData, + function<void()>&& aOnSuccess, + function<void()>&& aOnFailure) + : mFileIO(nullptr), + mOnSuccess(std::move(aOnSuccess)), + mOnFailure(std::move(aOnFailure)), + mData(aData) {} + + void Do(const string& aName, Host_10* aHost) { + // Initialize the FileIO. + mFileIO = aHost->CreateFileIO(this); + mFileIO->Open(aName.c_str(), aName.size()); + } + + void Done(cdm::FileIOClient::Status aStatus) { + // Note: Call Close() before running continuation, in case the + // continuation tries to open the same record; if we call Close() + // after running the continuation, the Close() call will arrive + // just after the Open() call succeeds, immediately closing the + // record we just opened. + if (mFileIO) { + mFileIO->Close(); + } + + if (IO_SUCCEEDED(aStatus)) { + mOnSuccess(); + } else { + mOnFailure(); + } + + delete this; + } + + FileIO* mFileIO = nullptr; + + function<void()> mOnSuccess; + function<void()> mOnFailure; + + const vector<uint8_t> mData; +}; + +void WriteData(Host_10* aHost, string& aRecordName, + const vector<uint8_t>& aData, function<void()>&& aOnSuccess, + function<void()>&& aOnFailure) { + WriteRecordClient::Write(aHost, aRecordName, aData, std::move(aOnSuccess), + std::move(aOnFailure)); +} + +class ReadRecordClient : public FileIOClient { + public: + /* + * This function will take the memory ownership of the parameters and + * delete them when done. + */ + static void Read(Host_10* aHost, string& aRecordName, + function<void(const uint8_t*, uint32_t)>&& aOnSuccess, + function<void()>&& aOnFailure) { + (new ReadRecordClient(std::move(aOnSuccess), std::move(aOnFailure))) + ->Do(aRecordName, aHost); + } + + void OnOpenComplete(Status aStatus) override { + auto err = aStatus; + if (aStatus != Status::kSuccess) { + Done(err, nullptr, 0); + } else { + mFileIO->Read(); + } + } + + void OnReadComplete(Status aStatus, const uint8_t* aData, + uint32_t aDataSize) override { + Done(aStatus, aData, aDataSize); + } + + void OnWriteComplete(Status aStatus) override { + // We should never reach here, this client only ever reads data. + assert(false); + } + + private: + explicit ReadRecordClient( + function<void(const uint8_t*, uint32_t)>&& aOnSuccess, + function<void()>&& aOnFailure) + : mFileIO(nullptr), + mOnSuccess(std::move(aOnSuccess)), + mOnFailure(std::move(aOnFailure)) {} + + void Do(const string& aName, Host_10* aHost) { + mFileIO = aHost->CreateFileIO(this); + mFileIO->Open(aName.c_str(), aName.size()); + } + + void Done(cdm::FileIOClient::Status aStatus, const uint8_t* aData, + uint32_t aDataSize) { + // Note: Call Close() before running continuation, in case the + // continuation tries to open the same record; if we call Close() + // after running the continuation, the Close() call will arrive + // just after the Open() call succeeds, immediately closing the + // record we just opened. + if (mFileIO) { + mFileIO->Close(); + } + + if (IO_SUCCEEDED(aStatus)) { + mOnSuccess(aData, aDataSize); + } else { + mOnFailure(); + } + + delete this; + } + + FileIO* mFileIO = nullptr; + + function<void(const uint8_t*, uint32_t)> mOnSuccess; + function<void()> mOnFailure; +}; + +void ReadData(Host_10* aHost, string& aRecordName, + function<void(const uint8_t*, uint32_t)>&& aOnSuccess, + function<void()>&& aOnFailure) { + ReadRecordClient::Read(aHost, aRecordName, std::move(aOnSuccess), + std::move(aOnFailure)); +} |