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135 lines
3.2 KiB
C++
135 lines
3.2 KiB
C++
#include "rr.hpp"
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#include "dns.hpp"
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#include <llarp/util/mem.hpp>
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#include <llarp/util/logging.hpp>
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#include <llarp/util/printer.hpp>
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namespace llarp
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{
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namespace dns
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{
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ResourceRecord::ResourceRecord(const ResourceRecord& other)
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: rr_name(other.rr_name)
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, rr_type(other.rr_type)
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, rr_class(other.rr_class)
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, ttl(other.ttl)
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, rData(other.rData)
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{}
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ResourceRecord::ResourceRecord(ResourceRecord&& other)
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: rr_name(std::move(other.rr_name))
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, rr_type(std::move(other.rr_type))
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, rr_class(std::move(other.rr_class))
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, ttl(std::move(other.ttl))
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, rData(std::move(other.rData))
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{}
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ResourceRecord::ResourceRecord(Name_t name, RRType_t type, RR_RData_t data)
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: rr_name{std::move(name)}
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, rr_type{type}
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, rr_class{qClassIN}
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, ttl{1}
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, rData{std::move(data)}
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{}
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bool
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ResourceRecord::Encode(llarp_buffer_t* buf) const
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{
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if (not EncodeName(buf, rr_name))
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return false;
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if (!buf->put_uint16(rr_type))
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{
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return false;
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}
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if (!buf->put_uint16(rr_class))
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{
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return false;
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}
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if (!buf->put_uint32(ttl))
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{
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return false;
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}
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if (!EncodeRData(buf, rData))
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{
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return false;
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}
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return true;
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}
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bool
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ResourceRecord::Decode(llarp_buffer_t* buf)
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{
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uint16_t discard;
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if (!buf->read_uint16(discard))
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return false;
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if (!buf->read_uint16(rr_type))
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{
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llarp::LogDebug("failed to decode rr type");
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return false;
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}
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if (!buf->read_uint16(rr_class))
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{
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llarp::LogDebug("failed to decode rr class");
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return false;
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}
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if (!buf->read_uint32(ttl))
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{
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llarp::LogDebug("failed to decode ttl");
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return false;
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}
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if (!DecodeRData(buf, rData))
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{
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llarp::LogDebug("failed to decode rr rdata ", *this);
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return false;
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}
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return true;
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}
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util::StatusObject
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ResourceRecord::ToJSON() const
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{
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return util::StatusObject{
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{"name", rr_name},
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{"type", rr_type},
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{"class", rr_class},
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{"ttl", ttl},
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{"rdata", std::string{reinterpret_cast<const char*>(rData.data()), rData.size()}}};
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}
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std::ostream&
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ResourceRecord::print(std::ostream& stream, int level, int spaces) const
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{
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Printer printer(stream, level, spaces);
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printer.printAttribute("name", rr_name);
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printer.printAttribute("type", rr_type);
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printer.printAttribute("class", rr_class);
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printer.printAttribute("ttl", ttl);
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printer.printAttribute("rdata", rData.size());
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return stream;
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}
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std::string
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ResourceRecord::ToString() const
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{
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std::ostringstream o;
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print(o, -1, -1);
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return o.str();
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}
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bool
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ResourceRecord::HasCNameForTLD(const std::string& tld) const
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{
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if (rr_type != qTypeCNAME)
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return false;
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Name_t name;
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llarp_buffer_t buf(rData);
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if (not DecodeName(&buf, name))
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return false;
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return name.find(tld) != std::string::npos
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&& name.rfind(tld) == (name.size() - tld.size()) - 1;
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}
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} // namespace dns
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} // namespace llarp
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