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construct/include/ircd/resource/method.h

73 lines
2.3 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 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_RESOURCE_METHOD_H
struct ircd::resource::method
{
enum flag :uint;
struct opts;
struct stats;
using handler = std::function<response (client &, request &)>;
static ctx::dock idle_dock;
struct resource *resource;
string_view name;
handler function;
std::unique_ptr<const struct opts> opts;
std::unique_ptr<struct stats> stats;
unique_const_iterator<decltype(resource::methods)> methods_it;
void handle_timeout(client &) const;
response call_handler(client &, request &);
public:
response operator()(client &, const http::request::head &, const string_view &content_partial);
method(struct resource &, const string_view &name, handler, struct opts);
method(struct resource &, const string_view &name, handler);
~method() noexcept;
};
enum ircd::resource::method::flag
:uint
{
REQUIRES_AUTH = 0x01, //TODO: matrix abstraction bleed.
RATE_LIMITED = 0x02,
VERIFY_ORIGIN = 0x04, //TODO: matrix abstraction bleed.
CONTENT_DISCRETION = 0x08,
};
struct ircd::resource::method::opts
{
flag flags {(flag)0};
/// Timeout specific to this resource.
seconds timeout {30s};
/// The maximum size of the Content-Length for this method. Anything
/// larger will be summarily rejected with a 413.
size_t payload_max {128_KiB};
/// MIME type; first part is the Registry (i.e application) and second
/// part is the format (i.e json). Empty value means nothing rejected.
std::pair<string_view, string_view> mime;
};
struct ircd::resource::method::stats
{
uint64_t pending {0}; // Clients currently inside the method
uint64_t requests {0}; // The method was found and called.
uint64_t timeouts {0}; // The method's timeout was exceeded.
uint64_t completions {0}; // The handler returned without throwing.
uint64_t internal_errors {0}; // The handler threw a very bad exception.
};