BlockStorage/repertory
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updated build system
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This commit is contained in:
Scott E. Graves
2025-01-04 15:22:49 -06:00
parent 7cf636b8ed
commit ddbebef850
8 changed files with 290 additions and 62 deletions
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67
support/src/utils/encryption.cpp
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@ -65,21 +65,20 @@ auto read_encrypted_range(const http_range &range,
const utils::encryption::hash_256_t &key,
reader_func_t reader_func, std::uint64_t total_size,
data_buffer &data) -> bool {
const auto encrypted_chunk_size =
auto encrypted_chunk_size =
utils::encryption::encrypting_reader::get_encrypted_chunk_size();
const auto data_chunk_size =
auto data_chunk_size =
utils::encryption::encrypting_reader::get_data_chunk_size();
const auto start_chunk =
static_cast<std::size_t>(range.begin / data_chunk_size);
const auto end_chunk = static_cast<std::size_t>(range.end / data_chunk_size);
auto start_chunk = static_cast<std::size_t>(range.begin / data_chunk_size);
auto end_chunk = static_cast<std::size_t>(range.end / data_chunk_size);
auto remain = range.end - range.begin + 1U;
auto source_offset = static_cast<std::size_t>(range.begin % data_chunk_size);
for (std::size_t chunk = start_chunk; chunk <= end_chunk; chunk++) {
data_buffer cypher;
const auto start_offset = chunk * encrypted_chunk_size;
const auto end_offset = std::min(
auto start_offset = chunk * encrypted_chunk_size;
auto end_offset = std::min(
start_offset + (total_size - (chunk * data_chunk_size)) +
encryption_header_size - 1U,
static_cast<std::uint64_t>(start_offset + encrypted_chunk_size - 1U));
@ -94,7 +93,7 @@ auto read_encrypted_range(const http_range &range,
}
cypher.clear();
const auto data_size = static_cast<std::size_t>(std::min(
auto data_size = static_cast<std::size_t>(std::min(
remain, static_cast<std::uint64_t>(data_chunk_size - source_offset)));
std::copy(std::next(source_buffer.begin(),
static_cast<std::int64_t>(source_offset)),
@ -107,6 +106,58 @@ auto read_encrypted_range(const http_range &range,
return true;
}
auto read_encrypted_range(const http_range &range,
const utils::encryption::hash_256_t &key,
reader_func_t reader_func, std::uint64_t total_size,
unsigned char *data, std::size_t size,
std::size_t &bytes_read) -> bool {
bytes_read = 0U;
auto encrypted_chunk_size =
utils::encryption::encrypting_reader::get_encrypted_chunk_size();
auto data_chunk_size =
utils::encryption::encrypting_reader::get_data_chunk_size();
auto start_chunk = static_cast<std::size_t>(range.begin / data_chunk_size);
auto end_chunk = static_cast<std::size_t>(range.end / data_chunk_size);
auto remain = range.end - range.begin + 1U;
auto source_offset = static_cast<std::size_t>(range.begin % data_chunk_size);
std::span dest_buffer(data, size);
for (std::size_t chunk = start_chunk; chunk <= end_chunk; chunk++) {
data_buffer cypher;
auto start_offset = chunk * encrypted_chunk_size;
auto end_offset = std::min(
start_offset + (total_size - (chunk * data_chunk_size)) +
encryption_header_size - 1U,
static_cast<std::uint64_t>(start_offset + encrypted_chunk_size - 1U));
if (not reader_func(cypher, start_offset, end_offset)) {
return false;
}
data_buffer source_buffer;
if (not utils::encryption::decrypt_data(key, cypher, source_buffer)) {
return false;
}
cypher.clear();
auto data_size = static_cast<std::size_t>(std::min(
remain, static_cast<std::uint64_t>(data_chunk_size - source_offset)));
std::copy(
std::next(source_buffer.begin(),
static_cast<std::int64_t>(source_offset)),
std::next(source_buffer.begin(),
static_cast<std::int64_t>(source_offset + data_size)),
std::next(dest_buffer.begin(), static_cast<std::int64_t>(bytes_read)));
remain -= data_size;
bytes_read += data_size;
source_offset = 0U;
}
return true;
}
#endif // defined(PROJECT_ENABLE_CURL)
} // namespace repertory::utils::encryption