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47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include "router_id.hpp"
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#include <oxenc/base32z.h>
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namespace llarp
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{
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constexpr std::string_view SNODE_TLD = ".snode";
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std::string
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RouterID::ToString() const
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{
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std::string b32 = oxenc::to_base32z(begin(), end());
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b32 += SNODE_TLD;
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return b32;
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}
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std::string
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RouterID::ShortString() const
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{
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// 5 bytes produces exactly 8 base32z characters:
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return oxenc::to_base32z(begin(), begin() + 5);
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}
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util::StatusObject
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RouterID::ExtractStatus() const
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{
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util::StatusObject obj{{"snode", ToString()}, {"hex", ToHex()}};
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return obj;
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}
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bool
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RouterID::FromString(std::string_view str)
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{
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auto pos = str.find(SNODE_TLD);
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if (pos != str.size() - SNODE_TLD.size())
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return false;
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str.remove_suffix(SNODE_TLD.size());
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// Ensure we have something valid:
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// - must end in a 1-bit value: 'o' or 'y' (i.e. 10000 or 00000)
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// - must have 51 preceeding base32z chars
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// - thus we get 51*5+1 = 256 bits = 32 bytes of output
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if (str.size() != 52 || !oxenc::is_base32z(str) || !(str.back() == 'o' || str.back() == 'y'))
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return false;
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oxenc::from_base32z(str.begin(), str.end(), begin());
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return true;
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}
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} // namespace llarp
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