mirror of
https://github.com/matrix-construct/construct
synced 2024-10-31 10:58:54 +01:00
335 lines
6.8 KiB
C++
335 lines
6.8 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) 2016-2019 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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using user_devices_map = std::map<m::user::id, json::array>;
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using host_users_map = std::map<string_view, user_devices_map>;
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using query_map = std::map<string_view, m::v1::user::keys::query>;
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using failure_map = std::map<string_view, std::exception_ptr, std::less<>>;
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using buffer_list = std::vector<unique_buffer<mutable_buffer>>;
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static host_users_map
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parse_user_request(const json::object &device_keys);
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static bool
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send_request(const string_view &,
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const user_devices_map &,
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failure_map &,
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buffer_list &,
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query_map &);
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static query_map
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send_requests(const host_users_map &,
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buffer_list &,
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failure_map &);
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static void
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recv_response(const string_view &,
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m::v1::user::keys::query &,
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failure_map &,
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json::stack::object &,
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const steady_point &);
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static void
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recv_responses(query_map &,
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failure_map &,
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json::stack::object &,
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const milliseconds &);
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static void
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handle_failures(const failure_map &,
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json::stack::object &);
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static resource::response
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post__keys_query(client &client,
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const resource::request &request);
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mapi::header
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IRCD_MODULE
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{
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"Client 14.11.5.2 :Key management API"
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};
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ircd::resource
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query_resource
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{
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"/_matrix/client/r0/keys/query",
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{
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"(14.11.5.2.2) Keys query",
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}
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};
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ircd::resource::redirect::permanent
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query_resource__unstable
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{
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"/_matrix/client/unstable/keys/query",
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"/_matrix/client/r0/keys/query",
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{
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"(14.11.5.2.2) Keys query",
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}
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};
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conf::item<milliseconds>
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query_timeout_default
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{
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{ "name", "ircd.client.keys.query.timeout.default" },
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{ "default", 10000L },
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};
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conf::item<milliseconds>
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query_timeout_min
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{
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{ "name", "ircd.client.keys.query.timeout.min" },
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{ "default", 5000L },
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};
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conf::item<milliseconds>
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query_timeout_max
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{
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{ "name", "ircd.client.keys.query.timeout.max" },
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{ "default", 20000L },
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};
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resource::method
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method_post
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{
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query_resource, "POST", post__keys_query,
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{
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method_post.REQUIRES_AUTH
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}
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};
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resource::response
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post__keys_query(client &client,
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const resource::request &request)
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{
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const milliseconds timeout{[&request]
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{
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const milliseconds _default(query_timeout_default);
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milliseconds ret(request.get("timeout", _default));
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ret = std::max(ret, milliseconds(query_timeout_min));
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ret = std::min(ret, milliseconds(query_timeout_max));
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return ret;
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}()};
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const auto &token
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{
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request["token"]
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};
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const json::object &request_keys
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{
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request.at("device_keys")
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};
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const host_users_map map
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{
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parse_user_request(request_keys)
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};
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buffer_list buffers;
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failure_map failures;
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query_map queries
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{
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send_requests(map, buffers, failures)
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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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json::stack out
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{
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response.buf, response.flusher()
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};
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json::stack::object top
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{
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out
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};
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recv_responses(queries, failures, top, timeout);
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handle_failures(failures, top);
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return {};
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}
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void
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handle_failures(const failure_map &failures,
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json::stack::object &out)
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{
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json::stack::object response_failures
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{
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out, "failures"
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};
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for(const auto &p : failures)
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{
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const string_view &hostname(p.first);
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const std::exception_ptr &eptr(p.second);
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json::stack::member
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{
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response_failures, hostname, what(eptr)
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};
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}
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}
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void
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recv_responses(query_map &queries,
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failure_map &failures,
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json::stack::object &out,
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const milliseconds &timeout)
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{
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const steady_point timedout
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{
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ircd::now<steady_point>() + timeout
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};
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json::stack::object response_keys
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{
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out, "device_keys"
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};
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for(auto &pair : queries)
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{
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const auto &remote(pair.first);
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auto &request(pair.second);
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assert(!failures.count(remote));
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if(failures.count(remote))
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continue;
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recv_response(remote, request, failures, response_keys, timedout);
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}
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}
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void
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recv_response(const string_view &remote,
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m::v1::user::keys::query &request,
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failure_map &failures,
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json::stack::object &object,
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const steady_point &timeout)
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try
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{
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request.wait_until(timeout);
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const auto code
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{
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request.get()
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};
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const json::object &response{request};
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const json::object &device_keys
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{
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response["device_keys"]
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};
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for(const auto &m : device_keys)
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{
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const m::user::id &user_id(m.first);
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const json::object &device_keys(m.second);
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json::stack::member
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{
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object, user_id, device_keys
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};
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}
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}
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catch(const std::exception &e)
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{
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log::error
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{
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m::log, "user keys query from %s :%s",
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remote,
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e.what()
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};
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failures.emplace(remote, std::current_exception());
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}
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query_map
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send_requests(const host_users_map &hosts,
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buffer_list &buffers,
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failure_map &failures)
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{
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query_map ret;
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for(const auto &pair : hosts)
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{
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const string_view &remote(pair.first);
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const user_devices_map &user_devices(pair.second);
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send_request(remote, user_devices, failures, buffers, ret);
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}
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return ret;
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}
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bool
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send_request(const string_view &remote,
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const user_devices_map &queries,
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failure_map &failures,
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buffer_list &buffers,
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query_map &ret)
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try
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{
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m::v1::user::keys::query::opts opts;
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opts.remote = remote;
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const auto &buffer
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{
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buffers.emplace_back(8_KiB)
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};
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ret.emplace
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(
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std::piecewise_construct,
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std::forward_as_tuple(remote),
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std::forward_as_tuple(queries, buffer, std::move(opts))
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);
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return true;
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}
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catch(const std::exception &e)
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{
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log::error
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{
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m::log, "user keys query to %s :%s",
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remote,
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e.what()
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};
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failures.emplace(remote, std::current_exception());
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return false;
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}
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host_users_map
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parse_user_request(const json::object &device_keys)
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{
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host_users_map ret;
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for(const auto &member : device_keys)
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{
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const m::user::id &user_id(member.first);
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const json::array &device_ids(member.second);
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const string_view &host(user_id.host());
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auto it(ret.lower_bound(host));
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if(it == end(ret) || it->first != host)
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it = ret.emplace_hint(it, host, user_devices_map{});
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user_devices_map &users(it->second);
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{
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auto it(users.lower_bound(user_id));
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if(it == end(users) || it->first != user_id)
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it = users.emplace_hint(it, user_id, json::array{});
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if(!empty(device_ids))
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it->second = device_ids;
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}
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}
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return std::move(ret);
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}
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