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construct/modules/client/createroom.cc

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8.5 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
using namespace ircd::m;
using namespace ircd;
mapi::header
IRCD_MODULE
{
"Client 7.1.1 :Create Room"
};
extern "C" room
createroom__parent_type(const id::room &room_id,
const id::user &creator,
const id::room &parent,
const string_view &type);
extern "C" room
createroom__type(const id::room &room_id,
const id::user &creator,
const string_view &type);
extern "C" room
createroom_(const id::room &room_id,
const id::user &creator);
const room::id::buf
init_room_id
{
"init", ircd::my_host()
};
resource
createroom_resource
{
"/_matrix/client/r0/createRoom",
{
"(7.1.1) Create a new room with various configuration options."
}
};
struct report_error
{
static thread_local char buf[512];
template<class... args>
report_error(json::stack::array &errors,
const string_view &room_id,
const string_view &user_id,
const string_view &fmt,
args&&... a);
};
resource::response
post__createroom(client &client,
const resource::request::object<m::createroom> &request)
try
{
const id::user &sender_id
{
request.user_id
};
const id::room::buf room_id
{
id::generate, my_host()
};
const room room
{
createroom_(room_id, sender_id)
};
resource::response::chunked response
{
client, http::CREATED, 2_KiB
};
json::stack out
{
response.buf, response.flusher()
};
json::stack::object top
{
out
};
json::stack::member
{
top, "room_id", room.room_id
};
json::stack::array errors
{
top, "errors"
};
const event::id::buf join_event_id
{
join(room, sender_id)
};
thread_local char pl_content_buf[4_KiB]; try
{
send(room, sender_id, "m.room.power_levels", "",
{
json::get<"power_level_content_override"_>(request)?
json::get<"power_level_content_override"_>(request):
m::room::power::default_content(pl_content_buf, sender_id)
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set power_levels: %s", e.what()
};
}
const json::string preset
{
json::get<"preset"_>(request)
};
const string_view &join_rule
{
preset == "private_chat"? "invite":
preset == "trusted_private_chat"? "invite":
preset == "public_chat"? "public":
"invite"
};
if(join_rule != "invite") try
{
send(room, sender_id, "m.room.join_rules", "",
{
{ "join_rule", join_rule }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set join_rules: %s", e.what()
};
}
const string_view &history_visibility
{
preset == "private_chat"? "shared":
preset == "trusted_private_chat"? "shared":
preset == "public_chat"? "shared":
"shared"
};
if(history_visibility != "shared") try
{
send(room, sender_id, "m.room.history_visibility", "",
{
{ "history_visibility", history_visibility }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set history_visibility: %s", e.what()
};
}
const string_view &guest_access
{
preset == "private_chat"? "forbidden":
preset == "trusted_private_chat"? "forbidden":
preset == "public_chat"? "forbidden":
"forbidden"
};
if(guest_access == "can_join") try
{
send(room, sender_id, "m.room.guest_access", "",
{
{ "guest_access", "can_join" }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set guest_access: %s", e.what()
};
}
// Takes precedence over events set by preset, but gets overriden by name
// and topic keys.
size_t i(0);
for(const json::object &event : json::get<"initial_state"_>(request)) try
{
const json::string &type(event["type"]);
const json::string &state_key(event["state_key"]);
const json::object &content(event["content"]);
send(room, sender_id, type, state_key, content);
++i;
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set initial_state event @%zu: %s",
i++,
e.what()
};
}
if(json::get<"name"_>(request)) try
{
static const size_t name_max_len
{
// 14.2.1.3: The name of the room. This MUST NOT exceed 255 bytes.
255
};
const auto name
{
trunc(json::get<"name"_>(request), name_max_len)
};
send(room, sender_id, "m.room.name", "",
{
{ "name", name }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set room name: %s", e.what()
};
}
if(json::get<"topic"_>(request)) try
{
send(room, sender_id, "m.room.topic", "",
{
{ "topic", json::get<"topic"_>(request) }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set room topic: %s", e.what()
};
}
for(const json::string &_user_id : json::get<"invite"_>(request)) try
{
const m::user::id &user_id{_user_id};
invite(room, user_id, sender_id);
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to invite user '%s': %s",
_user_id,
e.what()
};
}
if(json::get<"guest_can_join"_>(request) && guest_access != "can_join") try
{
send(room, sender_id, "m.room.guest_access", "",
{
{ "guest_access", "can_join" }
});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set guest_access: %s", e.what()
};
}
if(json::get<"visibility"_>(request) == "public") try
{
// This call sends a message to the !public room to list this room in the
// public rooms list. We set an empty summary for this room because we
// already have its state on this server;
m::rooms::summary_set(room.room_id, json::object{});
}
catch(const std::exception &e)
{
report_error
{
errors, room_id, sender_id, "Failed to set public visibility: %s", e.what()
};
}
return {};
}
catch(const db::not_found &e)
{
throw m::error
{
http::CONFLICT, "M_ROOM_IN_USE", "The desired room name is in use."
};
throw m::error
{
http::CONFLICT, "M_ROOM_ALIAS_IN_USE", "An alias of the desired room is in use."
};
}
resource::method
post_method
{
createroom_resource, "POST", post__createroom,
{
post_method.REQUIRES_AUTH
}
};
room
createroom_(const id::room &room_id,
const id::user &creator)
{
return createroom__type(room_id, creator, string_view{});
}
room
createroom__type(const id::room &room_id,
const id::user &creator,
const string_view &type)
{
return createroom__parent_type(room_id, creator, init_room_id, type);
}
room
createroom__parent_type(const id::room &room_id,
const id::user &creator,
const id::room &parent,
const string_view &type)
{
json::iov event;
json::iov content;
const json::iov::push push[]
{
{ event, { "sender", creator }},
{ content, { "creator", creator }},
};
const json::iov::add _parent
{
content, !parent.empty() && parent.local() != "init",
{
"parent", [&parent]() -> json::value
{
return parent;
}
}
};
const json::iov::add _type
{
content, !type.empty() && type != "room",
{
"type", [&type]() -> json::value
{
return type;
}
}
};
const json::iov::push _push[]
{
{ event, { "depth", 0L }},
{ event, { "type", "m.room.create" }},
{ event, { "state_key", "" }},
};
room room
{
room_id
};
commit(room, event, content);
return room;
}
decltype(report_error::buf) thread_local
report_error::buf;
template<class... args>
report_error::report_error(json::stack::array &errors,
const string_view &room_id,
const string_view &user_id,
const string_view &fmt,
args&&... a)
{
const string_view msg{fmt::sprintf
{
buf, fmt, std::forward<args>(a)...
}};
log::derror
{
m::log, "Error when creating room %s for user %s :%s",
room_id,
user_id,
msg
};
errors.append(msg);
}