mirror of
https://github.com/matrix-construct/construct
synced 2024-12-12 08:33:05 +01:00
104 lines
3 KiB
C++
104 lines
3 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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#pragma once
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#define HAVE_IRCD_M_ROOM_AUTH_H
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/// Interface to the auth_chain / auth_dag.
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///
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struct ircd::m::room::auth
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{
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struct refs;
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struct chain;
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struct hookdata;
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using types = vector_view<const string_view>;
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using events_view = vector_view<const event *>;
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using passfail = std::tuple<bool, std::exception_ptr>;
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IRCD_M_EXCEPTION(m::error, error, http::INTERNAL_SERVER_ERROR)
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IRCD_M_EXCEPTION(error, AUTH_FAIL, http::UNAUTHORIZED)
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using FAIL = AUTH_FAIL;
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static bool is_power_event(const event &);
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static std::array<event::idx, 5> relative_idx(const event &, const room &);
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static std::array<event::idx, 5> static_idx(const event &);
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static passfail check(const event &, hookdata &);
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static passfail check(const event &, const vector_view<event::idx> &);
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static passfail check_static(const event &);
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static passfail check_present(const event &);
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static passfail check_relative(const event &);
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static void check(const event &);
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static bool generate(json::stack::array &, const m::room &, const m::event &);
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static json::array generate(const mutable_buffer &, const m::room &, const m::event &);
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};
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/// Interface to the references made by other power events to this power
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/// event in the `auth_events`. This interface only deals with power events,
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/// it doesn't care if a non-power event referenced a power event. This does
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/// not contain the auth-chain or state resolution algorithm here, those are
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/// later constructed out of this data.
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struct ircd::m::room::auth::refs
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{
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event::idx idx;
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public:
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using closure_bool = event::closure_idx_bool;
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bool for_each(const string_view &type, const closure_bool &) const;
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bool for_each(const closure_bool &) const;
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bool has(const string_view &type) const;
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bool has(const event::idx &) const;
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size_t count(const string_view &type) const;
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size_t count() const;
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refs(const event::idx &idx)
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:idx{idx}
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{}
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};
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struct ircd::m::room::auth::chain
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{
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using closure = event::closure_idx_bool;
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event::idx idx;
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public:
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bool for_each(const closure &) const;
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bool has(const string_view &type) const;
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size_t depth() const;
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chain(const event::idx &idx)
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:idx{idx}
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{}
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};
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class ircd::m::room::auth::hookdata
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{
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const event *find(const event::closure_bool &) const;
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public:
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event::prev prev;
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vector_view<const event *> auth_events;
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const event *auth_create {nullptr};
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const event *auth_power {nullptr};
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const event *auth_join_rules {nullptr};
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const event *auth_member_target {nullptr};
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const event *auth_member_sender {nullptr};
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bool allow {false};
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std::exception_ptr fail;
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hookdata(const event &, const events_view &auth_events);
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hookdata() = default;
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};
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