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construct/modules/client/login.cc

171 lines
4.1 KiB
C++

/*
* Copyright (C) 2017 Charybdis Development Team
* Copyright (C) 2017 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
using namespace ircd;
resource login_resource
{
"/_matrix/client/r0/login",
{
"Authenticates the user by password, and issues an access token "
"they can use to authorize themself in subsequent requests. (3.2.2)"
}
};
namespace { namespace name
{
constexpr const auto password{"password"};
constexpr const auto medium{"medium"};
constexpr const auto type{"type"};
constexpr const auto user{"user"};
constexpr const auto address{"address"};
}}
struct body
:json::tuple
<
json::property<name::password, string_view>,
json::property<name::medium, time_t>,
json::property<name::type, string_view>,
json::property<name::user, string_view>,
json::property<name::address, string_view>
>
{
using super_type::tuple;
};
resource::response
post_login_password(client &client,
const resource::request::object<body> &request)
{
// Build a canonical MXID from a the user field
const m::id::user::buf user_id
{
unquote(at<"user"_>(request)), my_host()
};
const auto &supplied_password
{
unquote(at<"password"_>(request))
};
m::user user
{
user_id
};
if(!user.is_password(supplied_password))
throw m::error
{
http::FORBIDDEN, "M_FORBIDDEN", "Access denied."
};
if(!user.is_active())
throw m::error
{
http::FORBIDDEN, "M_FORBIDDEN", "Access denied."
};
// Generate the access token
static constexpr const auto token_len{127};
static const auto token_dict{rand::dict::alpha};
char token_buf[token_len + 1];
const string_view access_token
{
rand::string(token_dict, token_len, token_buf, sizeof(token_buf))
};
// Log the user in by issuing an event in the sessions room containing
// the generated token. When this call completes without throwing the
// access_token will be committed and the user will be logged in.
m::send(m::user::sessions, user_id, "ircd.access_token", access_token,
{
{ "ip", string(remote(client)) },
{ "device", "unknown" },
});
// Send response to user
return resource::response
{
client,
{
{ "user_id", user_id },
{ "home_server", my_host() },
{ "access_token", access_token },
}
};
}
resource::response
post_login(client &client, const resource::request::object<body> &request)
{
// x.x.x Required. The login type being used.
// Currently only "m.login.password" is supported.
const auto type
{
unquote(at<"type"_>(request))
};
if(type == "m.login.password")
return post_login_password(client, request);
else
throw m::error
{
"M_UNSUPPORTED", "Login type is not supported."
};
}
resource::method method_post
{
login_resource, "POST", post_login
};
resource::response
get_login(client &client, const resource::request &request)
{
json::member login_password
{
"type", "m.login.password"
};
json::value flows[1]
{
{ login_password }
};
return resource::response
{
client, json::members
{
{ "flows", { flows, 1 } }
}
};
}
resource::method method_get
{
login_resource, "GET", get_login
};
mapi::header IRCD_MODULE
{
"registers the resource 'client/login' to handle requests"
};