mirror of
https://github.com/matrix-construct/construct
synced 2024-11-26 08:42:34 +01:00
102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
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* charybdis: 21st Century IRC++d
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*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 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.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#pragma once
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#define HAVE_IRCD_M_ID_H
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namespace ircd {
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namespace m {
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const size_t USER_ID_BUFSIZE = 256;
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const size_t ACCESS_TOKEN_BUFSIZE = 256;
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inline bool
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username_valid(const string_view &username)
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{
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return true;
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}
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inline bool
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mxid_valid(const string_view &mxid)
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{
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const auto userhost(split(mxid, ':'));
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const auto &user(userhost.first);
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const auto &host(userhost.second);
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if(user.empty() || host.empty())
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return false;
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if(!startswith(user, '@') || user.size() == 1)
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return false;
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return true;
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}
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inline string_view
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username_generate(char *const &buf,
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const size_t &max)
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{
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const uint32_t num(rand() % 100000U);
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const size_t len(snprintf(buf, max, "@guest%u", num));
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return { buf, len };
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}
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inline string_view
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access_token_generate(char *const &buf,
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const size_t &max)
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{
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const int num[] { rand(), rand(), rand() };
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const size_t len(snprintf(buf, max, "charybdis%d%d%d", num[0], num[1], num[2]));
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return { buf, len };
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}
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struct id
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{
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string_view user;
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string_view host;
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template<size_t size>
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id(string_view user, string_view host)
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:user{std::move(user)}
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,host{std::move(host)}
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{}
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id(const string_view &user, const string_view &host, char *const &buf, const size_t &max)
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:user{user}
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,host{host}
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{
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char gen_buf[USER_ID_BUFSIZE];
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fmt::snprintf(buf, max, "%s%s:%s",
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user.empty() || startswith(user, '@')? "" : "@",
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!user.empty()? user : username_generate(gen_buf, sizeof(gen_buf)),
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host);
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}
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template<size_t size>
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id(const string_view &user, const string_view &host, char (&buf)[size])
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:id{user, host, buf, size}
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{}
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};
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} // namespace m
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} // namespace ircd
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