mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-02 03:40:12 +00:00
21930cf667
* initial relay side lns * fix typo * add reserved names and refactor test for dns * lns name decryption * all wired up (allegedly) * refact to use service::EncryptedName for LNS responses to include nonce with ciphertext * fully rwemove tag_lookup_job * replace lns cache with DecayingHashTable * check for lns name validity against the following rules: * not localhost.loki, loki.loki, or snode.loki * if it contains no dash then max 32 characters long, not including the .loki tld (and also assuming a leading subdomain has been stripped) * These are from general DNS requirements, and also enforced in registrations: * Must be all [A-Za-z0-9-]. (A-Z will be lower-cased by the RPC call). * cannot start or end with a - * max 63 characters long if it does contain a dash * cannot contain -- in the third and fourth characters unless it starts with xn-- * handle timeout in name lookup job by calling the right handler with std::nullopt
98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
#ifndef LLARP_SERVICE_LOOKUP_HPP
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#define LLARP_SERVICE_LOOKUP_HPP
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#include <routing/message.hpp>
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#include <service/intro_set.hpp>
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#include <path/pathset.hpp>
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#include <set>
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namespace llarp
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{
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// forward declare
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namespace path
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{
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struct Path;
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}
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namespace service
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{
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struct ILookupHolder;
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constexpr size_t MaxConcurrentLookups = size_t(16);
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struct IServiceLookup
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{
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IServiceLookup() = delete;
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virtual ~IServiceLookup() = default;
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/// handle lookup result for introsets
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virtual bool
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HandleIntrosetResponse(const std::set<EncryptedIntroSet>&)
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{
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return false;
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}
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/// handle lookup result for introsets
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virtual bool HandleNameResponse(std::optional<Address>)
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{
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return false;
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}
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virtual void
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HandleTimeout()
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{
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HandleIntrosetResponse({});
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}
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/// determine if this request has timed out
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bool
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IsTimedOut(llarp_time_t now, llarp_time_t timeout = 20s) const
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{
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if (now <= m_created)
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return false;
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return now - m_created > timeout;
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}
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/// build request message for service lookup
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virtual std::shared_ptr<routing::IMessage>
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BuildRequestMessage() = 0;
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/// build a new request message and send it via a path
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virtual bool
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SendRequestViaPath(path::Path_ptr p, AbstractRouter* r);
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ILookupHolder* m_parent;
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uint64_t txid;
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const std::string name;
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RouterID endpoint;
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util::StatusObject
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ExtractStatus() const
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{
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auto now = time_now_ms();
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util::StatusObject obj{{"txid", txid},
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{"endpoint", endpoint.ToHex()},
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{"name", name},
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{"timedOut", IsTimedOut(now)},
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{"createdAt", m_created.count()}};
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return obj;
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}
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protected:
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IServiceLookup(ILookupHolder* parent, uint64_t tx, std::string name);
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llarp_time_t m_created;
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};
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struct ILookupHolder
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{
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virtual void
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PutLookup(IServiceLookup* l, uint64_t txid) = 0;
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};
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} // namespace service
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} // namespace llarp
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#endif
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