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ircd:Ⓜ️ Move keys related into modules/key; keys into node's room; remaining keys.cc into m.cc.

This commit is contained in:
Jason Volk 2018-03-05 23:42:57 -08:00
parent 0fe0d548c0
commit c864a6b446
6 changed files with 686 additions and 544 deletions

View file

@ -10,8 +10,6 @@
#pragma once #pragma once
#define HAVE_IRCD_M_KEYS_H #define HAVE_IRCD_M_KEYS_H
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsubobject-linkage"
namespace ircd::m namespace ircd::m
{ {
@ -29,6 +27,8 @@ namespace ircd::m::self
extern std::string tls_cert_der_sha256_b64; extern std::string tls_cert_der_sha256_b64;
} }
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsubobject-linkage"
/// Contains the public keys and proof of identity for a remote server. /// Contains the public keys and proof of identity for a remote server.
/// ///
/// A user who wishes to verify a signature from a remote server must have /// A user who wishes to verify a signature from a remote server must have
@ -62,23 +62,20 @@ struct ircd::m::keys
{ {
struct init; struct init;
using key_closure = std::function<void (const string_view &)>; // remember to unquote()!!!
using keys_closure = std::function<void (const keys &)>;
static m::room room;
static bool get_local(const string_view &server_name, const keys_closure &);
static bool verify(const keys &) noexcept;
static void set(const keys &);
public: public:
static void get(const string_view &server_name, const string_view &key_id, const string_view &query_server, const keys_closure &); using closure = std::function<void (const keys &)>;
using key_closure = std::function<void (const string_view &)>; // remember to unquote()!!!
static void get(const string_view &server_name, const string_view &key_id, const string_view &query_server, const closure &);
static void get(const string_view &server_name, const closure &);
static void get(const string_view &server_name, const string_view &key_id, const closure &);
static void get(const string_view &server_name, const string_view &key_id, const key_closure &); static void get(const string_view &server_name, const string_view &key_id, const key_closure &);
static void get(const string_view &server_name, const keys_closure &);
using super_type::tuple; using super_type::tuple;
using super_type::operator=; using super_type::operator=;
}; };
#pragma GCC diagnostic pop
struct ircd::m::keys::init struct ircd::m::keys::init
{ {
@ -88,10 +85,6 @@ struct ircd::m::keys::init
void signing(); void signing();
public: public:
void bootstrap();
init(const json::object &config); init(const json::object &config);
~init() noexcept; ~init() noexcept;
}; };
#pragma GCC diagnostic pop

View file

@ -107,7 +107,6 @@ libircd_la_SOURCES = \
m/filter.cc \ m/filter.cc \
m/request.cc \ m/request.cc \
m/v1.cc \ m/v1.cc \
m/keys.cc \
m/m.cc \ m/m.cc \
m/vm.cc \ m/vm.cc \
ircd.cc \ ircd.cc \

View file

@ -1,524 +0,0 @@
// 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.
#include <ircd/m/m.h>
const ircd::m::room::id::buf
keys_room_id
{
"keys", ircd::my_host()
};
/// The keys room is where the public key data for each server is stored as
/// state indexed by the server name.
ircd::m::room
ircd::m::keys::room
{
keys_room_id
};
ircd::ed25519::sk
ircd::m::self::secret_key
{};
ircd::ed25519::pk
ircd::m::self::public_key
{};
std::string
ircd::m::self::public_key_b64
{};
std::string
ircd::m::self::public_key_id
{};
std::string
ircd::m::self::tls_cert_der
{};
std::string
ircd::m::self::tls_cert_der_sha256_b64
{};
//
// init
//
ircd::m::keys::init::init(const json::object &config)
:config{config}
{
certificate();
signing();
}
ircd::m::keys::init::~init()
noexcept
{
}
void
ircd::m::keys::init::certificate()
{
const std::string cert_file
{
unquote(conf.at("tls_certificate_path"))
};
if(!fs::exists(cert_file))
throw fs::error("Failed to find SSL certificate @ `%s'", cert_file);
const auto cert_pem
{
fs::read(cert_file)
};
const unique_buffer<mutable_buffer> der_buf
{
8_KiB
};
const auto cert_der
{
openssl::cert2d(der_buf, cert_pem)
};
const fixed_buffer<const_buffer, crh::sha256::digest_size> hash
{
sha256{cert_der}
};
self::tls_cert_der_sha256_b64 =
{
b64encode_unpadded(hash)
};
static char print_buf[8_KiB];
log.info("Certificate `%s' (PEM: %zu bytes; DER: %zu bytes) sha256b64: %s :%s",
cert_file,
cert_pem.size(),
ircd::size(cert_der),
self::tls_cert_der_sha256_b64,
openssl::print_subject(print_buf, cert_pem));
}
void
ircd::m::keys::init::signing()
{
const std::string sk_file
{
unquote(config.get("signing_key_path", "construct.sk"))
};
if(fs::exists(sk_file))
log.info("Using ed25519 secret key @ `%s'", sk_file);
else
log.notice("Creating new ed25519 secret key @ `%s'", sk_file);
self::secret_key = ed25519::sk
{
sk_file, &self::public_key
};
self::public_key_b64 = b64encode_unpadded(self::public_key);
const fixed_buffer<const_buffer, sha256::digest_size> hash
{
sha256{self::public_key}
};
const auto public_key_hash_b58
{
b58encode(hash)
};
static const auto trunc_size{8};
self::public_key_id = fmt::snstringf
{
BUFSIZE, "ed25519:%s", trunc(public_key_hash_b58, trunc_size)
};
log.info("Current key is '%s' and the public key is: %s",
self::public_key_id,
self::public_key_b64);
}
void
ircd::m::keys::init::bootstrap()
{
create(keys::room, me.user_id);
send(keys::room, me.user_id, "m.room.name", "",
{
{ "name", "Key Room" }
});
const json::strung verify_keys
{
json::members
{{
string_view{self::public_key_id},
{
{ "key", self::public_key_b64 }
}
}}
};
keys my_key;
json::get<"verify_keys"_>(my_key) = verify_keys;
json::get<"server_name"_>(my_key) = my_host();
json::get<"old_verify_keys"_>(my_key) = "{}";
json::get<"valid_until_ts"_>(my_key) = ircd::time<milliseconds>() + duration_cast<milliseconds>(hours(2160)).count();
const json::members tlsfps
{
{ "sha256", self::tls_cert_der_sha256_b64 }
};
const json::value tlsfp[1]
{
{ tlsfps }
};
const json::strung tls_fingerprints{json::value
{
tlsfp, 1
}};
json::get<"tls_fingerprints"_>(my_key) = tls_fingerprints;
const auto presig
{
json::strung(my_key)
};
const ed25519::sig sig
{
self::secret_key.sign(const_buffer{presig})
};
static char signature[256];
const json::strung signatures{json::members
{
{ my_host(), json::members
{
{ string_view{self::public_key_id}, b64encode_unpadded(signature, sig) }
}}
}};
json::get<"signatures"_>(my_key) = signatures;
keys::set(my_key);
}
//
// keys
//
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const key_closure &closure)
try
{
get(server_name, [&key_id, &closure](const keys &keys)
{
const json::object vks
{
at<"verify_keys"_>(keys)
};
const json::object vkk
{
vks.at(key_id)
};
// The key is not unquote() because some types of keys may be
// more complex than just a string one day; think: RLWE.
const string_view &key
{
vkk.at("key")
};
closure(key);
});
}
catch(const json::not_found &e)
{
throw m::NOT_FOUND
{
"Failed to find key '%s' for '%s': %s",
key_id,
server_name,
e.what()
};
}
void
ircd::m::keys::get(const string_view &server_name,
const keys_closure &closure)
{
assert(!server_name.empty());
if(get_local(server_name, closure))
return;
if(server_name == my_host())
throw m::NOT_FOUND
{
"keys for '%s' (that's myself) not found", server_name
};
log.debug("Keys for %s not cached; querying network...",
server_name);
char url[1024]; const auto url_len
{
fmt::snprintf(url, sizeof(url), "_matrix/key/v2/server/")
};
//TODO: XXX
const unique_buffer<mutable_buffer> buffer
{
8192
};
ircd::parse::buffer pb{mutable_buffer{buffer}};
m::request request{"GET", url, {}, {}};
m::session session{server_name};
const json::object response
{
session(pb, request)
};
const m::keys &keys
{
response
};
if(!verify(keys))
throw m::error
{
http::UNAUTHORIZED, "M_INVALID_SIGNATURE",
"Failed to verify keys for '%s'", server_name
};
log.debug("Verified keys from '%s'",
server_name);
set(keys);
closure(keys);
}
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const string_view &query_server,
const keys_closure &closure)
try
{
assert(!server_name.empty());
assert(!query_server.empty());
char key_id_buf[1024];
char server_name_buf[1024];
char url[1024]; const auto url_len
{
fmt::snprintf(url, sizeof(url), "_matrix/key/v2/query/%s/%s/",
url::encode(server_name, server_name_buf),
url::encode(key_id, key_id_buf))
};
//TODO: XXX
const unique_buffer<mutable_buffer> buffer
{
8192
};
// Make request and receive response synchronously.
// This ircd::ctx will block here fetching.
ircd::parse::buffer pb{mutable_buffer{buffer}};
m::request request{"GET", url, {}, {}};
m::session session{server_name};
const json::object response
{
session(pb, request)
};
const json::array &keys
{
response.at("server_keys")
};
log::debug("Fetched %zu candidate keys seeking '%s' for '%s' from '%s' (%s)",
keys.count(),
empty(key_id)? "*" : key_id,
server_name,
query_server,
string(net::remote(session.server)));
bool ret{false};
for(auto it(begin(keys)); it != end(keys); ++it)
{
const m::keys &keys{*it};
const auto &_server_name
{
at<"server_name"_>(keys)
};
if(!verify(keys))
throw m::error
{
http::UNAUTHORIZED, "M_INVALID_SIGNATURE",
"Failed to verify keys for '%s' from '%s'",
_server_name,
query_server
};
log.debug("Verified keys for '%s' from '%s'",
_server_name,
query_server);
set(keys);
const json::object vks{json::get<"verify_keys"_>(keys)};
if(_server_name == server_name)
{
closure(keys);
ret = true;
}
}
if(!ret)
throw m::NOT_FOUND
{
"Failed to get any keys for '%s' from '%s' (got %zu total keys otherwise)",
server_name,
query_server,
keys.count()
};
}
catch(const json::not_found &e)
{
throw m::NOT_FOUND
{
"Failed to find key '%s' for '%s' when querying '%s': %s",
key_id,
server_name,
query_server,
e.what()
};
}
bool
ircd::m::keys::get_local(const string_view &server_name,
const keys_closure &closure)
{
static const string_view type{"ircd.key"};
return m::keys::room.get(std::nothrow, type, server_name, [&closure]
(const m::event &event)
{
closure(json::get<"content"_>(event));
});
}
void
ircd::m::keys::set(const keys &keys)
{
const auto &server_name
{
unquote(at<"server_name"_>(keys))
};
const auto &state_key
{
server_name
};
const m::user::id::buf sender
{
"ircd", server_name
};
const json::strung derp
{
keys
};
static const string_view type{"ircd.key"};
send(keys::room, sender, type, state_key, json::object{derp});
}
/// Verify this key data (with itself).
bool
ircd::m::keys::verify(const keys &keys)
noexcept try
{
const auto &valid_until_ts
{
at<"valid_until_ts"_>(keys)
};
if(valid_until_ts < ircd::time<milliseconds>())
throw ircd::error("Key was valid until %s", timestr(valid_until_ts));
const json::object &verify_keys
{
at<"verify_keys"_>(keys)
};
const string_view &key_id
{
begin(verify_keys)->first
};
const json::object &key
{
begin(verify_keys)->second
};
const ed25519::pk pk
{
[&key](auto &pk)
{
b64decode(pk, unquote(key.at("key")));
}
};
const json::object &signatures
{
at<"signatures"_>(keys)
};
const string_view &server_name
{
unquote(at<"server_name"_>(keys))
};
const json::object &server_signatures
{
signatures.at(server_name)
};
const ed25519::sig sig{[&server_signatures, &key_id](auto &sig)
{
b64decode(sig, unquote(server_signatures.at(key_id)));
}};
///TODO: XXX
m::keys copy{keys};
at<"signatures"_>(copy) = string_view{};
const json::strung preimage{copy};
return pk.verify(const_buffer{preimage}, sig);
}
catch(const std::exception &e)
{
log.error("key verification for '%s' failed: %s",
json::get<"server_name"_>(keys, "<no server name>"_sv),
e.what());
return false;
}

View file

@ -250,8 +250,6 @@ ircd::m::init::bootstrap()
{ {
{ "name", "User Tokens" } { "name", "User Tokens" }
}); });
_keys.bootstrap();
} }
bool bool
@ -299,6 +297,233 @@ ircd::m::leave_ircd_room()
presence::set(me, "offline", me_offline_status_msg); presence::set(me, "offline", me_offline_status_msg);
} }
///////////////////////////////////////////////////////////////////////////////
//
// m/keys.h
//
ircd::ed25519::sk
ircd::m::self::secret_key
{};
ircd::ed25519::pk
ircd::m::self::public_key
{};
std::string
ircd::m::self::public_key_b64
{};
std::string
ircd::m::self::public_key_id
{};
std::string
ircd::m::self::tls_cert_der
{};
std::string
ircd::m::self::tls_cert_der_sha256_b64
{};
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const key_closure &closure)
try
{
get(server_name, [&key_id, &closure](const keys &keys)
{
const json::object vks
{
at<"verify_keys"_>(keys)
};
const json::object vkk
{
vks.at(key_id)
};
const string_view &key
{
vkk.at("key")
};
closure(key);
});
}
catch(const json::not_found &e)
{
throw m::NOT_FOUND
{
"Failed to find key '%s' for '%s': %s",
key_id,
server_name,
e.what()
};
}
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const closure &closure)
{
get(server_name, [&key_id, &closure](const keys &keys)
{
closure(keys);
});
}
void
ircd::m::keys::get(const string_view &server_name,
const closure &closure_)
{
using prototype = void (const string_view &, const closure &);
static import<prototype> function
{
"key_keys", "get__keys"
};
return function(server_name, closure_);
}
void
ircd::m::keys::get(const string_view &server_name,
const string_view &key_id,
const string_view &query_server,
const closure &closure_)
{
using prototype = void (const string_view &, const string_view &, const string_view &, const closure &);
static import<prototype> function
{
"key_keys", "query__keys"
};
return function(server_name, key_id, query_server, closure_);
}
//
// init
//
ircd::m::keys::init::init(const json::object &config)
:config{config}
{
certificate();
signing();
}
ircd::m::keys::init::~init()
noexcept
{
}
void
ircd::m::keys::init::certificate()
{
const std::string private_key_file
{
unquote(config.at("tls_private_key_path"))
};
const std::string public_key_file
{
unquote(config.get("tls_public_key_path", private_key_file + ".pub"))
};
if(!fs::exists(private_key_file))
{
log::warning("Failed to find certificate private key @ `%s'; creating...", private_key_file);
openssl::genrsa(private_key_file, public_key_file);
}
const std::string cert_file
{
unquote(config.at("tls_certificate_path"))
};
if(!fs::exists(cert_file))
throw fs::error("Failed to find SSL certificate @ `%s'", cert_file);
const auto cert_pem
{
fs::read(cert_file)
};
const unique_buffer<mutable_buffer> der_buf
{
8_KiB
};
const auto cert_der
{
openssl::cert2d(der_buf, cert_pem)
};
const fixed_buffer<const_buffer, crh::sha256::digest_size> hash
{
sha256{cert_der}
};
self::tls_cert_der_sha256_b64 =
{
b64encode_unpadded(hash)
};
log.info("Certificate `%s' :PEM %zu bytes; DER %zu bytes; sha256b64 %s",
cert_file,
cert_pem.size(),
ircd::size(cert_der),
self::tls_cert_der_sha256_b64);
thread_local char print_buf[8_KiB];
log.info("Certificate `%s' :%s",
cert_file,
openssl::print_subject(print_buf, cert_pem));
}
void
ircd::m::keys::init::signing()
{
const std::string sk_file
{
unquote(config.get("signing_key_path", "construct.sk"))
};
if(fs::exists(sk_file))
log.info("Using ed25519 secret key @ `%s'", sk_file);
else
log.notice("Creating new ed25519 secret key @ `%s'", sk_file);
self::secret_key = ed25519::sk
{
sk_file, &self::public_key
};
self::public_key_b64 = b64encode_unpadded(self::public_key);
const fixed_buffer<const_buffer, sha256::digest_size> hash
{
sha256{self::public_key}
};
const auto public_key_hash_b58
{
b58encode(hash)
};
static const auto trunc_size{8};
self::public_key_id = fmt::snstringf
{
BUFSIZE, "ed25519:%s", trunc(public_key_hash_b58, trunc_size)
};
log.info("Current key is '%s' and the public key is: %s",
self::public_key_id,
self::public_key_b64);
}
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// //
// m/presence.h // m/presence.h

View file

@ -207,10 +207,12 @@ client_module_LTLIBRARIES += \
key_moduledir = @moduledir@ key_moduledir = @moduledir@
key_key_keys_la_SOURCES = key/keys.cc
key_key_server_la_SOURCES = key/server.cc key_key_server_la_SOURCES = key/server.cc
key_key_query_la_SOURCES = key/query.cc key_key_query_la_SOURCES = key/query.cc
key_module_LTLIBRARIES = \ key_module_LTLIBRARIES = \
key/key_keys.la \
key/key_server.la \ key/key_server.la \
key/key_query.la \ key/key_query.la \
### ###

447
modules/key/keys.cc Normal file
View file

@ -0,0 +1,447 @@
// 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;
static bool verify(const m::keys &) noexcept;
static bool get_local(const string_view &server_name, const m::keys::closure &);
static event::id::buf set_keys(const m::keys &);
mapi::header
IRCD_MODULE
{
"2.3 Retrieving Server Keys"
};
extern "C" void
get__keys(const string_view &server_name,
const m::keys::closure &closure)
{
assert(!server_name.empty());
if(get_local(server_name, closure))
return;
if(server_name == my_host())
throw m::NOT_FOUND
{
"keys for '%s' (that's myself) not found", server_name
};
m::log.debug("Keys for %s not cached; querying network...",
server_name);
//TODO: XXX
const unique_buffer<mutable_buffer> buffer
{
32_KiB
};
const mutable_buffer out_head
{
data(buffer), 8_KiB
};
using buffer::size;
const mutable_buffer in
{
data(out_head) + size(out_head), size(buffer) - size(out_head)
};
m::request request
{
my_host(), server_name, "GET", "/_matrix/key/v2/server/", {}
};
const auto request_head
{
request(out_head)
};
const net::hostport host
{
server_name
};
server::request tag
{
host, { request_head }, { in }
};
//TODO: conf
if(tag.wait(seconds(20)) == ctx::future_status::timeout)
{
cancel(tag);
throw m::error
{
http::REQUEST_TIMEOUT, "M_TIMEOUT",
"Failed to fetch keys for '%s' in time",
server_name
};
}
const http::code status
{
tag.get()
};
const json::object response
{
tag.in.content
};
const m::keys &keys
{
response
};
if(!verify(keys))
throw m::error
{
http::UNAUTHORIZED, "M_INVALID_SIGNATURE",
"Failed to verify keys for '%s'",
server_name
};
m::log.debug("Verified keys from '%s'",
server_name);
set_keys(keys);
closure(keys);
}
extern "C" void
query__keys(const string_view &server_name,
const string_view &key_id,
const string_view &query_server,
const m::keys::closure &closure)
try
{
assert(!server_name.empty());
assert(!query_server.empty());
thread_local char url_buf[2_KiB];
thread_local char key_id_buf[1_KiB];
thread_local char server_name_buf[1_KiB];
const string_view url{fmt::sprintf
{
url_buf, "/_matrix/key/v2/query/%s/%s/",
url::encode(server_name, server_name_buf),
url::encode(key_id, key_id_buf)
}};
// This buffer will hold the HTTP request and response
//TODO: XXX
const unique_buffer<mutable_buffer> buffer
{
32_KiB
};
m::request request
{
my_host(), server_name, "GET", url, {}
};
// Generates the HTTP request head into the front of buffer
const string_view head
{
request(buffer)
};
// Partition the remainder of buffer for the response data
using buffer::size;
assert(size(head) < size(buffer) / 2);
const mutable_buffer in
{
data(buffer) + size(head), size(buffer) - size(head)
};
// The request to the remote is transmitted
server::request tag
{
server_name, { head }, { in }
};
if(tag.wait(seconds(30)) == ctx::future_status::timeout)
throw m::error
{
http::REQUEST_TIMEOUT, "M_TIMEOUT",
"Failed to fetch keys for '%s' from '%s' in time",
server_name,
query_server
};
// The response from the remote is received
const auto code
{
tag.get()
};
// The content received is here
const json::object response
{
tag.in.content
};
// This parses the content for our key.
const json::array &keys
{
response.at("server_keys")
};
m::log.debug("Fetched %zu candidate keys seeking '%s' for '%s' from '%s'",
keys.count(),
empty(key_id)? "*" : key_id,
server_name,
query_server);
bool ret{false};
for(auto it(begin(keys)); it != end(keys); ++it)
{
const m::keys &keys{*it};
const auto &_server_name
{
at<"server_name"_>(keys)
};
if(!verify(keys))
throw m::error
{
http::UNAUTHORIZED, "M_INVALID_SIGNATURE",
"Failed to verify keys for '%s' from '%s'",
_server_name,
query_server
};
m::log.debug("Verified keys for '%s' from '%s'",
_server_name,
query_server);
set_keys(keys);
const json::object vks{json::get<"verify_keys"_>(keys)};
if(_server_name == server_name)
{
closure(keys);
ret = true;
}
}
if(!ret)
throw m::NOT_FOUND
{
"Failed to get any keys for '%s' from '%s' (got %zu total keys otherwise)",
server_name,
query_server,
keys.count()
};
}
catch(const json::not_found &e)
{
throw m::NOT_FOUND
{
"Failed to find key '%s' for '%s' when querying '%s': %s",
key_id,
server_name,
query_server,
e.what()
};
}
event::id::buf
set_keys(const m::keys &keys)
{
const auto &server_name
{
unquote(at<"server_name"_>(keys))
};
const m::node::id::buf node_id
{
"", server_name
};
const m::node::room node_room
{
node_id
};
if(!exists(node_room.room_id))
create(node_room, m::me.user_id);
const json::strung derp
{
keys
};
return send(node_room, m::me.user_id, "ircd.keys", "", json::object{derp});
}
bool
get_local(const string_view &server_name,
const m::keys::closure &closure)
{
const node::id::buf node_id
{
"", server_name
};
const m::node::room node_room
{
node_id
};
return node_room.get(std::nothrow, "ircd.keys", "", [&closure]
(const m::event &event)
{
closure(json::get<"content"_>(event));
});
}
bool
verify(const m::keys &keys)
noexcept try
{
const auto &valid_until_ts
{
at<"valid_until_ts"_>(keys)
};
if(valid_until_ts < ircd::time<milliseconds>())
throw ircd::error("Key was valid until %s", timestr(valid_until_ts));
const json::object &verify_keys
{
at<"verify_keys"_>(keys)
};
const string_view &key_id
{
begin(verify_keys)->first
};
const json::object &key
{
begin(verify_keys)->second
};
const ed25519::pk pk
{
[&key](auto &pk)
{
b64decode(pk, unquote(key.at("key")));
}
};
const json::object &signatures
{
at<"signatures"_>(keys)
};
const string_view &server_name
{
unquote(at<"server_name"_>(keys))
};
const json::object &server_signatures
{
signatures.at(server_name)
};
const ed25519::sig sig{[&server_signatures, &key_id](auto &sig)
{
b64decode(sig, unquote(server_signatures.at(key_id)));
}};
///TODO: XXX
m::keys copy{keys};
at<"signatures"_>(copy) = string_view{};
const json::strung preimage{copy};
return pk.verify(const_buffer{preimage}, sig);
}
catch(const std::exception &e)
{
m::log.error("key verification for '%s' failed: %s",
json::get<"server_name"_>(keys, "<no server name>"_sv),
e.what());
return false;
}
static void
create_my_key(const m::event &)
{
const json::strung verify_keys
{
json::members
{{
string_view{self::public_key_id},
{
{ "key", self::public_key_b64 }
}
}}
};
m::keys my_key;
json::get<"verify_keys"_>(my_key) = verify_keys;
json::get<"server_name"_>(my_key) = my_host();
json::get<"old_verify_keys"_>(my_key) = "{}";
json::get<"valid_until_ts"_>(my_key) = ircd::time<milliseconds>() + duration_cast<milliseconds>(hours(2160)).count();
const json::members tlsfps
{
{ "sha256", self::tls_cert_der_sha256_b64 }
};
const json::value tlsfp[1]
{
{ tlsfps }
};
const json::strung tls_fingerprints{json::value
{
tlsfp, 1
}};
json::get<"tls_fingerprints"_>(my_key) = tls_fingerprints;
const auto presig
{
json::strung(my_key)
};
const ed25519::sig sig
{
self::secret_key.sign(const_buffer{presig})
};
static char signature[256];
const json::strung signatures{json::members
{
{ my_host(), json::members
{
{ string_view{self::public_key_id}, b64encode_unpadded(signature, sig) }
}}
}};
json::get<"signatures"_>(my_key) = signatures;
set_keys(my_key);
}
const m::hook
create_my_key_hook
{
create_my_key,
{
{ "_site", "vm notify" },
{ "room_id", m::my_node.room_id() },
{ "type", "m.room.create" },
}
};