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modules/federation: Implement GET /hierarchy.
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3 changed files with 177 additions and 0 deletions
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@ -95,6 +95,7 @@ ircd::m::module_names
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"federation_event",
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"federation_get_groups_publicised",
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"federation_get_missing_events",
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"federation_hierarchy",
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"federation_invite",
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"federation_invite2",
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"federation_make_join",
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@ -218,6 +218,7 @@ federation_federation_user_devices_la_SOURCES = federation/user_devices.cc
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federation_federation_user_keys_query_la_SOURCES = federation/user_keys_query.cc
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federation_federation_user_keys_claim_la_SOURCES = federation/user_keys_claim.cc
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federation_federation_rooms_la_SOURCES = federation/rooms.cc
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federation_federation_hierarchy_la_SOURCES = federation/hierarchy.cc
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federation_module_LTLIBRARIES = \
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federation/federation_send.la \
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@ -242,6 +243,7 @@ federation_module_LTLIBRARIES = \
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federation/federation_user_keys_query.la \
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federation/federation_user_keys_claim.la \
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federation/federation_rooms.la \
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federation/federation_hierarchy.la \
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###
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###############################################################################
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174
modules/federation/hierarchy.cc
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174
modules/federation/hierarchy.cc
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@ -0,0 +1,174 @@
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// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2022 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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static m::resource::response
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get__hierarchy(client &client,
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const m::resource::request &request);
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mapi::header
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IRCD_MODULE
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{
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"Federation 16 :Spaces"
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};
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m::resource
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hierarchy_resource
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{
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"/_matrix/federation/v1/hierarchy/",
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{
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"Federation 16 :Spaces hierarchy.",
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resource::DIRECTORY,
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}
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};
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m::resource::method
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method_get
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{
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hierarchy_resource, "GET", get__hierarchy,
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{
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method_get.VERIFY_ORIGIN
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}
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};
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conf::item<size_t>
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flush_hiwat
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{
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{ "name", "ircd.federation.hierarchy.flush.hiwat" },
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{ "default", 16384L },
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};
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conf::item<size_t>
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inaccessible_limit
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{
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{ "name", "ircd.federation.hierarchy.inaccessible.limit" },
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{ "default", 1024L },
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};
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m::resource::response
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get__hierarchy(client &client,
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const m::resource::request &request)
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{
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using server_acl = m::room::server_acl;
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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(room_id, request.parv[0])
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};
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const m::room room
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{
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room_id
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};
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if(server_acl::enable_read && !server_acl::check(room_id, request.node_id))
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throw m::ACCESS_DENIED
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{
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"You are not permitted by the room's server access control list."
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};
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if(!visible(room, 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 bool suggested_only
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{
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request.query.get("suggested_only", false)
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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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m::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(), flush_hiwat
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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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// room
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{
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json::stack::object object
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{
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top, "room"
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};
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m::rooms::summary::get(object, room);
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}
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// children
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std::vector<std::string> inaccessible;
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{
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json::stack::object object
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{
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top, "children"
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};
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state.for_each("m.space.child", [&object, &request, &inaccessible]
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(const string_view &, const string_view &state_key, const m::event::idx &)
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{
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if(!m::valid(m::id::ROOM, state_key))
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return true;
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const m::room::id room_id
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{
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state_key
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};
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const bool accessible
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{
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true
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&& m::exists(room_id)
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&& (!server_acl::enable_read || server_acl::check(room_id, request.node_id))
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&& visible(room_id, request.node_id)
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};
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if(!accessible && likely(inaccessible.size() < inaccessible_limit))
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inaccessible.emplace_back(room_id);
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if(accessible)
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m::rooms::summary::get(object, room_id);
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return true;
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});
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}
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// inaccessible_children
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{
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json::stack::array array
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{
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top, "inaccessible_children"
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};
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for(const string_view room_id : inaccessible)
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array.append(room_id);
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}
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return response;
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}
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