mirror of
https://github.com/matrix-construct/construct
synced 2024-11-14 05:51:10 +01:00
145 lines
2.7 KiB
C++
145 lines
2.7 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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using namespace ircd;
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mapi::header
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IRCD_MODULE
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{
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"federation event_auth (undocumented)"
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};
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resource
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event_auth_resource
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{
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"/_matrix/federation/v1/event_auth/",
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{
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"federation event_auth",
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resource::DIRECTORY,
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}
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};
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conf::item<size_t>
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event_auth_flush_hiwat
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{
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{ "name", "ircd.federation.event_auth.flush.hiwat" },
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{ "default", 16384L },
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};
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resource::response
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get__event_auth(client &client,
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const resource::request &request)
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{
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if(request.parv.size() < 1)
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throw m::NEED_MORE_PARAMS
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{
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"room_id path parameter required"
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};
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m::room::id::buf room_id
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{
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url::decode(request.parv[0], room_id)
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};
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if(request.parv.size() < 2)
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throw m::NEED_MORE_PARAMS
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{
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"event_id path parameter required"
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};
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m::event::id::buf event_id
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{
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url::decode(request.parv[1], event_id)
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};
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const m::event::fetch event
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{
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event_id
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};
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const m::room room
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{
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room_id, event_id
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};
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if(!room.visible(request.node_id))
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throw m::ACCESS_DENIED
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{
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"You are not permitted to view the room at this event"
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};
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const m::room::state state
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{
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room
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};
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const unique_buffer<mutable_buffer> buf
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{
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96_KiB
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};
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resource::response::chunked response
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{
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client, http::OK
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};
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const auto flush{[&response]
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(const const_buffer &buf)
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{
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response.write(buf);
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return buf;
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}};
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json::stack out
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{
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buf, flush, size_t(event_auth_flush_hiwat)
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};
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json::stack::object top{out};
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json::stack::member auth_chain_m
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{
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top, "auth_chain"
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};
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json::stack::array auth_chain
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{
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auth_chain_m
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};
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const auto append{[&auth_chain]
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(const m::event &event)
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{
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if(json::get<"event_id"_>(event))
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auth_chain.append(event);
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}};
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const auto append_with_sender{[&append, &state, &event]
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(const m::event &event_)
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{
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append(event_);
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if(json::get<"sender"_>(event_) != json::get<"sender"_>(event))
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state.get(std::nothrow, "m.room.member", json::get<"sender"_>(event_), append);
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}};
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state.get(std::nothrow, "m.room.create", "", append);
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state.get(std::nothrow, "m.room.join_rules", "", append);
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state.get(std::nothrow, "m.room.power_levels", "", append_with_sender);
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state.get(std::nothrow, "m.room.member", json::get<"sender"_>(event), append);
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return {};
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}
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resource::method
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method_get
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{
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event_auth_resource, "GET", get__event_auth,
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{
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method_get.VERIFY_ORIGIN
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}
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};
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