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61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
#include <functional>
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#include <llarp/api/parser.hpp>
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#include <map>
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namespace llarp
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{
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namespace api
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{
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std::map< std::string, std::function< IMessage*() > > funcmap = {
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{"ack", []() { return new AckMessage(); }},
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{"keepalive", []() { return new KeepAliveMessage(); }},
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{"spawn", []() { return new SpawnMessage(); }}};
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MessageParser::MessageParser()
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{
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r.user = this;
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r.on_key = &OnKey;
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}
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bool
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MessageParser::OnKey(dict_reader* r, llarp_buffer_t* key)
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{
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MessageParser* self = static_cast< MessageParser* >(r->user);
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if(self->msg == nullptr && key == nullptr) // empty message
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return false;
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if(self->msg == nullptr && key)
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{
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// first message, function name
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if(!llarp_buffer_eq(*key, "A"))
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return false;
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llarp_buffer_t strbuf;
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if(!bencode_read_string(r->buffer, &strbuf))
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return false;
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std::string funcname((char*)strbuf.cur, strbuf.sz);
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auto itr = funcmap.find(funcname);
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if(itr == funcmap.end())
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return false;
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self->msg = itr->second();
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return true;
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}
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else if(self->msg && key)
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{
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return self->msg->DecodeKey(*key, r->buffer);
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}
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else if(self->msg && key == nullptr)
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{
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return true;
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}
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return false;
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}
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IMessage*
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MessageParser::ParseMessage(llarp_buffer_t buf)
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{
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if(bencode_read_dict(&buf, &r))
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return msg;
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return nullptr;
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}
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} // namespace api
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} // namespace llarp
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