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std::ranges::transform/all_of come from <algorithm>, which is already included. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
32 lines
940 B
C++
32 lines
940 B
C++
#include <xrpl/telemetry/Redaction.h>
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#include <xrpl/basics/Slice.h>
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#include <xrpl/basics/base_uint.h>
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#include <xrpl/protocol/digest.h>
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#include <algorithm>
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#include <cctype>
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#include <string>
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#include <string_view>
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namespace xrpl::telemetry {
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std::string
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redactAccount(std::string_view addr)
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{
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// Empty in, empty out: nothing to hash and no token to emit.
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if (addr.empty())
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return {};
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// sha512Half yields a uint256; to_string renders it as uppercase hex.
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// Keep the first 16 chars (64 bits) — enough to correlate spans while
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// staying non-reversible — and lowercase them for a stable token.
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auto const digest = sha512Half(Slice(addr.data(), addr.size()));
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std::string token = to_string(digest).substr(0, 16);
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std::ranges::transform(
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token, token.begin(), [](unsigned char c) { return static_cast<char>(std::tolower(c)); });
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return token;
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}
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} // namespace xrpl::telemetry
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