ircd:Ⓜ️:v1: Add query request; add profile / directory convenience subtypes.

include/ircd/m/v1/query.h

@@ -0,0 +1,60 @@
+// 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.
+
+#pragma once
+#define HAVE_IRCD_M_V1_QUERY_H
+
+namespace ircd::m::v1
+{
+	struct query;
+};
+
+struct ircd::m::v1::query
+:server::request
+{
+	struct opts;
+	struct profile;
+	struct directory;
+
+	explicit operator json::object() const
+	{
+		const json::object object{in.content};
+		return object;
+	}
+
+	query(const string_view &type, const string_view &args, const mutable_buffer &, opts);
+};
+
+struct ircd::m::v1::query::opts
+{
+	net::hostport remote;
+	m::request request;
+	server::out out;
+	server::in in;
+	const struct server::request::opts *sopts {nullptr};
+
+	opts(const net::hostport &remote)
+	:remote{remote}
+	{}
+
+	opts() = default;
+};
+
+struct ircd::m::v1::query::profile
+:query
+{
+	profile(const id::user &user_id, const mutable_buffer &, opts);
+};
+
+struct ircd::m::v1::query::directory
+:query
+{
+	directory(const id::room_alias &room_alias, const mutable_buffer &, opts);
+};

include/ircd/m/v1/v1.h

@@ -12,6 +12,7 @@
 #define HAVE_IRCD_M_V1_H
 
 #include "version.h"
+#include "query.h"
 #include "make_join.h"
 #include "send_join.h"
 #include "event.h"

ircd/m/v1.cc

@@ -495,6 +495,96 @@ ircd::m::v1::make_join::make_join(const room::id &room_id,
 {
 }
 
+///////////////////////////////////////////////////////////////////////////////
+//
+// v1/query.h
+//
+
+namespace ircd::m::v1
+{
+	thread_local char query_arg_buf[1024];
+}
+
+ircd::m::v1::query::directory::directory(const id::room_alias &room_alias,
+                                         const mutable_buffer &buf,
+                                         opts opts)
+:query
+{
+	"directory",
+	fmt::sprintf
+	{
+		query_arg_buf, "room_alias=%s", string_view{room_alias}
+	},
+	buf,
+	opts
+}
+{
+}
+
+ircd::m::v1::query::profile::profile(const id::user &user_id,
+                                     const mutable_buffer &buf,
+                                     opts opts)
+:query
+{
+	"profile",
+	fmt::sprintf
+	{
+		query_arg_buf, "user_id=%s", string_view{user_id}
+	},
+	buf,
+	opts
+}
+{
+}
+
+ircd::m::v1::query::query(const string_view &type,
+                          const string_view &args,
+                          const mutable_buffer &buf,
+                          opts opts)
+:server::request{[&]
+{
+	assert(!!opts.remote);
+
+	if(!defined(json::get<"origin"_>(opts.request)))
+		json::get<"origin"_>(opts.request) = my_host();
+
+	if(!defined(json::get<"destination"_>(opts.request)))
+		json::get<"destination"_>(opts.request) = host(opts.remote);
+
+	if(!defined(json::get<"uri"_>(opts.request)))
+	{
+		thread_local char urlbuf[2048];
+		json::get<"uri"_>(opts.request) = fmt::sprintf
+		{
+			urlbuf, "/_matrix/federation/v1/query/%s?%s",
+			type,
+			args
+		};
+	}
+
+	json::get<"method"_>(opts.request) = "GET";
+	opts.out.head = opts.request(buf);
+
+	if(!size(opts.in))
+	{
+		const auto in_max
+		{
+			std::max(ssize_t(size(buf) - size(opts.out.head)), ssize_t(0))
+		};
+
+		assert(in_max >= ssize_t(size(buf) / 2));
+		opts.in.head = { data(buf) + size(opts.out.head), size_t(in_max) };
+		opts.in.content = opts.in.head;
+	}
+
+	return server::request
+	{
+		opts.remote, std::move(opts.out), std::move(opts.in), opts.sopts
+	};
+}()}
+{
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 // v1/version.h