nghttp2/src/shrpx_mruby_module_env.cc

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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2015 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "shrpx_mruby_module_env.h"
#include <mruby/variable.h>
#include <mruby/string.h>
#include <mruby/hash.h>
#include "shrpx_downstream.h"
#include "shrpx_upstream.h"
#include "shrpx_client_handler.h"
#include "shrpx_mruby.h"
#include "shrpx_mruby_module.h"
#include "shrpx_log.h"
#include "shrpx_tls.h"
namespace shrpx {
namespace mruby {
namespace {
mrb_value env_init(mrb_state *mrb, mrb_value self) { return self; }
} // namespace
namespace {
mrb_value env_get_req(mrb_state *mrb, mrb_value self) {
return mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "req"));
}
} // namespace
namespace {
mrb_value env_get_resp(mrb_state *mrb, mrb_value self) {
return mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "resp"));
}
} // namespace
namespace {
mrb_value env_get_ctx(mrb_state *mrb, mrb_value self) {
auto data = reinterpret_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto dsym = intern_ptr(mrb, downstream);
auto ctx = mrb_iv_get(mrb, self, dsym);
if (mrb_nil_p(ctx)) {
ctx = mrb_hash_new(mrb);
mrb_iv_set(mrb, self, dsym, ctx);
}
return ctx;
}
} // namespace
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namespace {
mrb_value env_get_phase(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
return mrb_fixnum_value(data->phase);
}
} // namespace
namespace {
mrb_value env_get_remote_addr(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto &ipaddr = handler->get_ipaddr();
return mrb_str_new(mrb, ipaddr.c_str(), ipaddr.size());
}
} // namespace
namespace {
mrb_value env_get_server_port(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto faddr = handler->get_upstream_addr();
return mrb_fixnum_value(faddr->port);
}
} // namespace
namespace {
mrb_value env_get_server_addr(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto faddr = handler->get_upstream_addr();
return mrb_str_new(mrb, faddr->host.c_str(), faddr->host.size());
}
} // namespace
namespace {
mrb_value env_get_tls_used(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
return handler->get_ssl() ? mrb_true_value() : mrb_false_value();
}
} // namespace
namespace {
mrb_value env_get_tls_sni(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto sni = handler->get_tls_sni();
return mrb_str_new(mrb, sni.c_str(), sni.size());
}
} // namespace
namespace {
mrb_value env_get_tls_client_fingerprint_md(mrb_state *mrb, const EVP_MD *md) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_str_new_static(mrb, "", 0);
}
// Currently the largest hash value is SHA-256, which is 32 bytes.
std::array<uint8_t, 32> buf;
auto slen = tls::get_x509_fingerprint(buf.data(), buf.size(), x, md);
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X509_free(x);
if (slen == -1) {
mrb_raise(mrb, E_RUNTIME_ERROR, "could not compute client fingerprint");
}
// TODO Use template version of format_hex
auto &balloc = downstream->get_block_allocator();
auto f = util::format_hex(balloc,
StringRef{std::begin(buf), std::begin(buf) + slen});
return mrb_str_new(mrb, f.c_str(), f.size());
}
} // namespace
namespace {
mrb_value env_get_tls_client_fingerprint_sha256(mrb_state *mrb,
mrb_value self) {
return env_get_tls_client_fingerprint_md(mrb, EVP_sha256());
}
} // namespace
namespace {
mrb_value env_get_tls_client_fingerprint_sha1(mrb_state *mrb, mrb_value self) {
return env_get_tls_client_fingerprint_md(mrb, EVP_sha1());
}
} // namespace
namespace {
mrb_value env_get_tls_client_subject_name(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_str_new_static(mrb, "", 0);
}
auto &balloc = downstream->get_block_allocator();
auto name = tls::get_x509_subject_name(balloc, x);
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X509_free(x);
return mrb_str_new(mrb, name.c_str(), name.size());
}
} // namespace
namespace {
mrb_value env_get_tls_client_issuer_name(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_str_new_static(mrb, "", 0);
}
auto &balloc = downstream->get_block_allocator();
auto name = tls::get_x509_issuer_name(balloc, x);
X509_free(x);
return mrb_str_new(mrb, name.c_str(), name.size());
}
} // namespace
namespace {
mrb_value env_get_tls_client_serial(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_str_new_static(mrb, "", 0);
}
auto &balloc = downstream->get_block_allocator();
auto sn = tls::get_x509_serial(balloc, x);
X509_free(x);
return mrb_str_new(mrb, sn.c_str(), sn.size());
}
} // namespace
namespace {
mrb_value env_get_tls_client_not_before(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_fixnum_value(0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_fixnum_value(0);
}
time_t t;
if (tls::get_x509_not_before(t, x) != 0) {
return mrb_fixnum_value(0);
}
return mrb_fixnum_value(t);
}
} // namespace
namespace {
mrb_value env_get_tls_client_not_after(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_fixnum_value(0);
}
auto x = SSL_get_peer_certificate(ssl);
if (!x) {
return mrb_fixnum_value(0);
}
time_t t;
if (tls::get_x509_not_after(t, x) != 0) {
return mrb_fixnum_value(0);
}
return mrb_fixnum_value(t);
}
} // namespace
namespace {
mrb_value env_get_tls_cipher(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
return mrb_str_new_cstr(mrb, SSL_get_cipher_name(ssl));
}
} // namespace
namespace {
mrb_value env_get_tls_protocol(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
return mrb_str_new_cstr(mrb, nghttp2::tls::get_tls_protocol(ssl));
}
} // namespace
namespace {
mrb_value env_get_tls_session_id(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_str_new_static(mrb, "", 0);
}
auto session = SSL_get_session(ssl);
if (!session) {
return mrb_str_new_static(mrb, "", 0);
}
unsigned int session_id_length = 0;
auto session_id = SSL_SESSION_get_id(session, &session_id_length);
// TODO Use template version of util::format_hex.
auto &balloc = downstream->get_block_allocator();
auto id = util::format_hex(balloc, StringRef{session_id, session_id_length});
return mrb_str_new(mrb, id.c_str(), id.size());
}
} // namespace
namespace {
mrb_value env_get_tls_session_reused(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto ssl = handler->get_ssl();
if (!ssl) {
return mrb_false_value();
}
return SSL_session_reused(ssl) ? mrb_true_value() : mrb_false_value();
}
} // namespace
namespace {
mrb_value env_get_alpn(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto alpn = handler->get_alpn();
return mrb_str_new(mrb, alpn.c_str(), alpn.size());
}
} // namespace
namespace {
mrb_value env_get_tls_handshake_finished(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
auto handler = upstream->get_client_handler();
auto conn = handler->get_connection();
return SSL_is_init_finished(conn->tls.ssl) ? mrb_true_value()
: mrb_false_value();
}
} // namespace
void init_env_class(mrb_state *mrb, RClass *module) {
auto env_class =
mrb_define_class_under(mrb, module, "Env", mrb->object_class);
mrb_define_method(mrb, env_class, "initialize", env_init, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "req", env_get_req, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "resp", env_get_resp, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "ctx", env_get_ctx, MRB_ARGS_NONE());
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mrb_define_method(mrb, env_class, "phase", env_get_phase, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "remote_addr", env_get_remote_addr,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "server_addr", env_get_server_addr,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "server_port", env_get_server_port,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_used", env_get_tls_used,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_sni", env_get_tls_sni,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_fingerprint_sha256",
env_get_tls_client_fingerprint_sha256, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_fingerprint_sha1",
env_get_tls_client_fingerprint_sha1, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_issuer_name",
env_get_tls_client_issuer_name, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_subject_name",
env_get_tls_client_subject_name, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_serial",
env_get_tls_client_serial, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_not_before",
env_get_tls_client_not_before, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_client_not_after",
env_get_tls_client_not_after, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_cipher", env_get_tls_cipher,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_protocol", env_get_tls_protocol,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_session_id", env_get_tls_session_id,
MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_session_reused",
env_get_tls_session_reused, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "alpn", env_get_alpn, MRB_ARGS_NONE());
mrb_define_method(mrb, env_class, "tls_handshake_finished",
env_get_tls_handshake_finished, MRB_ARGS_NONE());
}
} // namespace mruby
} // namespace shrpx