From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- .../components/url-classifier/RiceDeltaDecoder.h | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 toolkit/components/url-classifier/RiceDeltaDecoder.h (limited to 'toolkit/components/url-classifier/RiceDeltaDecoder.h') diff --git a/toolkit/components/url-classifier/RiceDeltaDecoder.h b/toolkit/components/url-classifier/RiceDeltaDecoder.h new file mode 100644 index 0000000000..89e8a86f35 --- /dev/null +++ b/toolkit/components/url-classifier/RiceDeltaDecoder.h @@ -0,0 +1,37 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef RICE_DELTA_DECODER_H +#define RICE_DELTA_DECODER_H + +namespace mozilla { +namespace safebrowsing { + +class RiceDeltaDecoder { + public: + // This decoder is tailored for safebrowsing v4, including the + // bit reading order and how the remainder part is interpreted. + // The caller just needs to feed the byte stream received from + // network directly. Note that the input buffer must be mutable + // since the decoder will do some pre-processing before decoding. + RiceDeltaDecoder(uint8_t* aEncodedData, size_t aEncodedDataSize); + + // @param aNumEntries The number of values to be decoded, not including + // the first value. + // @param aDecodedData A pre-allocated output buffer. Note that + // aDecodedData[0] will be filled with |aFirstValue| + // and the buffer length (in byte) should be + // ((aNumEntries + 1) * sizeof(uint32_t)). + bool Decode(uint32_t aRiceParameter, uint32_t aFirstValue, + uint32_t aNumEntries, uint32_t* aDecodedData); + + private: + uint8_t* mEncodedData; + size_t mEncodedDataSize; +}; + +} // namespace safebrowsing +} // namespace mozilla + +#endif // UPDATE_V4_DECODER_H -- cgit v1.2.3