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Initial commit of shrpx: SPDY/HTTPS to HTTP reverse proxy 

Put libhtparse in examples/htparse
This commit is contained in:
Tatsuhiro Tsujikawa 2012-06-04 23:48:31 +09:00
parent d654ad0cc6
commit fad7f51f8d
27 changed files with 3073 additions and 3 deletions
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8
configure.ac
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@ -95,6 +95,14 @@ if test "x${have_openssl}" = "xno"; then
AC_MSG_NOTICE([The example programs will not be built.])
fi
# libevent_openssl
PKG_CHECK_MODULES([LIBEVENT_OPENSSL], [libevent_openssl >= 2.0.6],
[have_libevent_openssl=yes], [have_libevent_openssl=no])
if test "x${have_libevent_openssl}" = "xno"; then
AC_MSG_NOTICE($LIBEVENT_OPENSSL_PKG_ERRORS)
AC_MSG_NOTICE([Shrpx example program will not be built.])
fi
# libxml2 (for examples/spdycat)
AM_PATH_XML2(2.7.7, [have_libxml2=yes], [have_libxml2=no])
if test "x${have_libxml2}" = "xyes"; then

1
examples/.gitignore vendored
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@ -2,3 +2,4 @@ spdycat
spdyd
spdynative
spdycli
shrpx

20
examples/Makefile.am
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@ -25,11 +25,11 @@ if ENABLE_EXAMPLES
AM_CFLAGS = -Wall
AM_CPPFLAGS = -Wall -I$(srcdir)/../lib/includes -I$(builddir)/../lib/includes \
@OPENSSL_CFLAGS@ @XML_CPPFLAGS@ @DEFS@
AM_LDFLAGS = @OPENSSL_LIBS@ @XML_LIBS@
@OPENSSL_CFLAGS@ @XML_CPPFLAGS@ @LIBEVENT_OPENSSL_CFLAGS@ @DEFS@
AM_LDFLAGS = @OPENSSL_LIBS@ @XML_LIBS@ @LIBEVENT_OPENSSL_LIBS@
LDADD = $(top_builddir)/lib/libspdylay.la
bin_PROGRAMS = spdycat spdyd
bin_PROGRAMS = spdycat spdyd shrpx
HELPER_OBJECTS = uri.cc util.cc spdylay_ssl.cc
HELPER_HFILES = uri.h util.h spdylay_ssl.h
@ -65,6 +65,20 @@ spdyd_SOURCES = ${HELPER_OBJECTS} ${HELPER_HFILES} \
${SPDY_SERVER_OBJECTS} ${SPDY_SERVER_HFILES} \
spdyd.cc
shrpx_SOURCES = ${HELPER_OBJECTS} ${HELPER_HFILES} \
shrpx_config.cc shrpx_config.h \
shrpx.cc \
shrpx_listen_handler.cc shrpx_listen_handler.h \
shrpx_client_handler.cc shrpx_client_handler.h \
shrpx_upstream.h \
shrpx_spdy_upstream.cc shrpx_spdy_upstream.h \
shrpx_https_upstream.cc shrpx_https_upstream.h \
shrpx_downstream_queue.cc shrpx_downstream_queue.h \
shrpx_downstream.cc shrpx_downstream.h \
shrpx_log.cc shrpx_log.h \
shrpx_http.cc shrpx_http.h \
htparse/htparse.c htparse/htparse.h
noinst_PROGRAMS = spdycli
spdycli_SOURCES = spdycli.c

323
examples/shrpx.cc Normal file
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@ -0,0 +1,323 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.h"
#include <stdint.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <signal.h>
#include <cstdlib>
#include <iostream>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <event2/listener.h>
#include <spdylay/spdylay.h>
#include "shrpx_config.h"
#include "shrpx_listen_handler.h"
namespace shrpx {
namespace {
std::pair<unsigned char*, size_t> next_proto;
unsigned char proto_list[23];
} // namespace
namespace {
int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len,
void *arg)
{
std::pair<unsigned char*, size_t> *next_proto =
reinterpret_cast<std::pair<unsigned char*, size_t>* >(arg);
*data = next_proto->first;
*len = next_proto->second;
return SSL_TLSEXT_ERR_OK;
}
} // namespace
namespace {
int verify_callback(int preverify_ok, X509_STORE_CTX *ctx)
{
// We don't verify the client certificate. Just request it for the
// testing purpose.
return 1;
}
} // namespace
namespace {
SSL_CTX* create_ssl_ctx()
{
// TODO lock function
SSL_CTX *ssl_ctx;
ssl_ctx = SSL_CTX_new(SSLv23_server_method());
if(!ssl_ctx) {
std::cerr << ERR_error_string(ERR_get_error(), 0) << std::endl;
return NULL;
}
SSL_CTX_set_options(ssl_ctx,
SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_COMPRESSION);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
if(SSL_CTX_use_PrivateKey_file(ssl_ctx,
get_config()->private_key_file,
SSL_FILETYPE_PEM) != 1) {
std::cerr << "SSL_CTX_use_PrivateKey_file failed." << std::endl;
return NULL;
}
if(SSL_CTX_use_certificate_file(ssl_ctx, get_config()->cert_file,
SSL_FILETYPE_PEM) != 1) {
std::cerr << "SSL_CTX_use_certificate_file failed." << std::endl;
return NULL;
}
if(SSL_CTX_check_private_key(ssl_ctx) != 1) {
std::cerr << "SSL_CTX_check_private_key failed." << std::endl;
return NULL;
}
if(get_config()->verify_client) {
SSL_CTX_set_verify(ssl_ctx,
SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE |
SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
verify_callback);
}
// We speaks "http/1.1", "spdy/2" and "spdy/3".
proto_list[0] = 6;
memcpy(&proto_list[1], "spdy/3", 6);
proto_list[7] = 6;
memcpy(&proto_list[8], "spdy/2", 6);
proto_list[14] = 8;
memcpy(&proto_list[15], "http/1.1", 8);
next_proto.first = proto_list;
next_proto.second = sizeof(proto_list);
SSL_CTX_set_next_protos_advertised_cb(ssl_ctx, next_proto_cb, &next_proto);
return ssl_ctx;
}
} // namespace
namespace {
void ssl_acceptcb(evconnlistener *listener, int fd,
sockaddr *addr, int addrlen, void *arg)
{
ListenHandler *handler = reinterpret_cast<ListenHandler*>(arg);
handler->accept_connection(fd, addr, addrlen);
}
} // namespace
namespace {
int cache_downstream_host_address()
{
addrinfo hints;
int rv;
char service[10];
snprintf(service, sizeof(service), "%u", get_config()->downstream_port);
memset(&hints, 0, sizeof(addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
#ifdef AI_ADDRCONFIG
hints.ai_flags |= AI_ADDRCONFIG;
#endif // AI_ADDRCONFIG
addrinfo *res, *rp;
rv = getaddrinfo(get_config()->downstream_host, service, &hints, &res);
if(rv != 0) {
LOG(ERROR) << "getaddrinfo: " << gai_strerror(rv);
return -1;
}
for(rp = res; rp; rp = rp->ai_next) {
int fd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if(fd == -1) {
continue;
}
rv = connect(fd, rp->ai_addr, rp->ai_addrlen);
close(fd);
if(rv == -1) {
continue;
}
break;
}
if(rp == 0 && res) {
LOG(INFO) << "Using first returned address for downstream "
<< get_config()->downstream_host
<< ", port "
<< get_config()->downstream_port;
rp = res;
}
if(rp != 0) {
memcpy(&mod_config()->downstream_addr, rp->ai_addr, rp->ai_addrlen);
mod_config()->downstream_addrlen = rp->ai_addrlen;
}
freeaddrinfo(res);
if(rp == 0) {
LOG(ERROR) << "No usable address found for downstream "
<< get_config()->downstream_host
<< ", port "
<< get_config()->downstream_port;
return -1;
} else {
return 0;
}
}
} // namespace
namespace {
evconnlistener* create_evlistener(ListenHandler *handler)
{
// TODO Listen both IPv4 and IPv6
addrinfo hints;
int fd = -1;
int r;
char service[10];
snprintf(service, sizeof(service), "%u", get_config()->port);
memset(&hints, 0, sizeof(addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
#ifdef AI_ADDRCONFIG
hints.ai_flags |= AI_ADDRCONFIG;
#endif // AI_ADDRCONFIG
addrinfo *res, *rp;
r = getaddrinfo(get_config()->host, service, &hints, &res);
if(r != 0) {
LOG(ERROR) << "getaddrinfo: " << gai_strerror(r);
return NULL;
}
for(rp = res; rp; rp = rp->ai_next) {
fd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if(fd == -1) {
continue;
}
int val = 1;
if(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
close(fd);
continue;
}
evutil_make_socket_nonblocking(fd);
if(bind(fd, rp->ai_addr, rp->ai_addrlen) == 0) {
break;
}
close(fd);
}
freeaddrinfo(res);
if(rp == 0) {
LOG(ERROR) << "No valid address returned for host " << get_config()->host
<< ", port " << get_config()->port;
return 0;
}
evconnlistener *evlistener = evconnlistener_new
(handler->get_evbase(),
ssl_acceptcb,
handler,
LEV_OPT_REUSEABLE | LEV_OPT_CLOSE_ON_FREE,
256,
fd);
return evlistener;
}
} // namespace
namespace {
int event_loop()
{
SSL_CTX *ssl_ctx = create_ssl_ctx();
if(ssl_ctx == NULL) {
return -1;
}
event_base *evbase = event_base_new();
ListenHandler *listener_handler = new ListenHandler(evbase, ssl_ctx);
evconnlistener *evlistener = create_evlistener(listener_handler);
if(evlistener == NULL) {
return -1;
}
if(ENABLE_LOG) {
LOG(INFO) << "Entering event loop";
}
event_base_loop(evbase, 0);
evconnlistener_free(evlistener);
SSL_CTX_free(ssl_ctx);
return 0;
}
} // namespace
int main(int argc, char **argv)
{
struct sigaction act;
memset(&act, 0, sizeof(struct sigaction));
act.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &act, 0);
OpenSSL_add_all_algorithms();
SSL_load_error_strings();
SSL_library_init();
create_config();
mod_config()->server_name = "shrpx spdylay/"SPDYLAY_VERSION;
mod_config()->port = 3000;
mod_config()->private_key_file = "server.key";
mod_config()->cert_file = "server.crt";
mod_config()->upstream_read_timeout.tv_sec = 30;
mod_config()->upstream_read_timeout.tv_usec = 0;
mod_config()->upstream_write_timeout.tv_sec = 30;
mod_config()->upstream_write_timeout.tv_usec = 0;
mod_config()->spdy_upstream_read_timeout.tv_sec = 600;
mod_config()->spdy_upstream_read_timeout.tv_usec = 0;
mod_config()->spdy_upstream_write_timeout.tv_sec = 30;
mod_config()->spdy_upstream_write_timeout.tv_usec = 0;
mod_config()->downstream_read_timeout.tv_sec = 30;
mod_config()->downstream_read_timeout.tv_usec = 0;
mod_config()->downstream_write_timeout.tv_sec = 30;
mod_config()->downstream_write_timeout.tv_usec = 0;
mod_config()->downstream_host = "localhost";
mod_config()->downstream_port = 80;
char hostport[256];
if(get_config()->downstream_port == 80) {
mod_config()->downstream_hostport = get_config()->downstream_host;
} else {
snprintf(hostport, sizeof(hostport), "%s:%u",
get_config()->downstream_host, get_config()->downstream_port);
mod_config()->downstream_hostport = hostport;
}
if(cache_downstream_host_address() == -1) {
exit(EXIT_FAILURE);
}
event_loop();
return 0;
}
} // namespace shrpx
int main(int argc, char **argv)
{
return shrpx::main(argc, argv);
}

37
examples/shrpx.h Normal file
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@ -0,0 +1,37 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_H
#define SHRPX_H
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif // HAVE_CONFIG_H
#include "shrpx_log.h"
#define DIE() \
assert(0);
#endif // SHRPX_H

213
examples/shrpx_client_handler.cc Normal file
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@ -0,0 +1,213 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_client_handler.h"
#include "shrpx_upstream.h"
#include "shrpx_spdy_upstream.h"
#include "shrpx_https_upstream.h"
#include "shrpx_config.h"
namespace shrpx {
namespace {
void upstream_readcb(bufferevent *bev, void *arg)
{
ClientHandler *handler = reinterpret_cast<ClientHandler*>(arg);
int rv = handler->on_read();
if(rv != 0) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> Read operation (application level) failure";
}
delete handler;
}
}
} // namespace
namespace {
void upstream_writecb(bufferevent *bev, void *arg)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> upstream_writecb";
}
ClientHandler *handler = reinterpret_cast<ClientHandler*>(arg);
if(handler->get_should_close_after_write()) {
delete handler;
}
}
} // namespace
namespace {
void upstream_eventcb(bufferevent *bev, short events, void *arg)
{
ClientHandler *handler = reinterpret_cast<ClientHandler*>(arg);
bool finish = false;
if(events & BEV_EVENT_EOF) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> SSL/TLS handshake EOF";
}
finish = true;
}
if(events & BEV_EVENT_ERROR) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> SSL/TLS network error";
}
finish = true;
}
if(events & BEV_EVENT_TIMEOUT) {
if(ENABLE_LOG) {
LOG(INFO) << "SPDY upstream SSL/TLS time out";
}
finish = true;
}
if(finish) {
delete handler;
} else {
if(events & BEV_EVENT_CONNECTED) {
if(ENABLE_LOG) {
LOG(INFO) << "Connected Handler "
<< handler;
}
handler->set_bev_cb(upstream_readcb, upstream_writecb, upstream_eventcb);
handler->validate_next_proto();
// At this point, input buffer is already filled with some
// bytes. The read callback is not called until new data
// come. So consume input buffer here.
handler->get_upstream()->on_read();
}
}
}
} // namespace
ClientHandler::ClientHandler(bufferevent *bev, SSL *ssl, const char *ipaddr)
: bev_(bev),
ssl_(ssl),
upstream_(0),
ipaddr_(ipaddr),
should_close_after_write_(false)
{
bufferevent_enable(bev_, EV_READ | EV_WRITE);
set_upstream_timeouts(&get_config()->upstream_read_timeout,
&get_config()->upstream_write_timeout);
set_bev_cb(0, upstream_writecb, upstream_eventcb);
}
ClientHandler::~ClientHandler()
{
if(ENABLE_LOG) {
LOG(INFO) << "Deleting ClientHandler " << this;
}
int fd = SSL_get_fd(ssl_);
SSL_shutdown(ssl_);
bufferevent_disable(bev_, EV_READ | EV_WRITE);
bufferevent_free(bev_);
SSL_free(ssl_);
shutdown(fd, SHUT_WR);
close(fd);
delete upstream_;
if(ENABLE_LOG) {
LOG(INFO) << "Deleted";
}
}
Upstream* ClientHandler::get_upstream()
{
return upstream_;
}
bufferevent* ClientHandler::get_bev() const
{
return bev_;
}
event_base* ClientHandler::get_evbase() const
{
return bufferevent_get_base(bev_);
}
void ClientHandler::set_bev_cb
(bufferevent_data_cb readcb, bufferevent_data_cb writecb,
bufferevent_event_cb eventcb)
{
bufferevent_setcb(bev_, readcb, writecb, eventcb, this);
}
void ClientHandler::set_upstream_timeouts(const timeval *read_timeout,
const timeval *write_timeout)
{
bufferevent_set_timeouts(bev_, read_timeout, write_timeout);
}
int ClientHandler::validate_next_proto()
{
const unsigned char *next_proto = 0;
unsigned int next_proto_len;
SSL_get0_next_proto_negotiated(ssl_, &next_proto, &next_proto_len);
if(next_proto) {
std::string proto(next_proto, next_proto+next_proto_len);
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> The negotiated next protocol: " << proto;
}
uint16_t version = spdylay_npn_get_version(next_proto, next_proto_len);
if(version) {
SpdyUpstream *spdy_upstream = new SpdyUpstream(version, this);
upstream_ = spdy_upstream;
return 0;
}
} else {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> No proto negotiated";
}
}
HttpsUpstream *https_upstream = new HttpsUpstream(this);
upstream_ = https_upstream;
return 0;
}
int ClientHandler::on_read()
{
return upstream_->on_read();
}
int ClientHandler::on_event()
{
return upstream_->on_event();
}
const std::string& ClientHandler::get_ipaddr() const
{
return ipaddr_;
}
bool ClientHandler::get_should_close_after_write() const
{
return should_close_after_write_;
}
void ClientHandler::set_should_close_after_write(bool f)
{
should_close_after_write_ = f;
}
} // namespace shrpx

64
examples/shrpx_client_handler.h Normal file
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@ -0,0 +1,64 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_CLIENT_HANDLER_H
#define SHRPX_CLIENT_HANDLER_H
#include "shrpx.h"
#include <event.h>
#include <openssl/ssl.h>
namespace shrpx {
class Upstream;
class ClientHandler {
public:
ClientHandler(bufferevent *bev, SSL *ssl, const char *ipaddr);
~ClientHandler();
int on_read();
int on_event();
bufferevent* get_bev() const;
event_base* get_evbase() const;
void set_bev_cb(bufferevent_data_cb readcb, bufferevent_data_cb writecb,
bufferevent_event_cb eventcb);
void set_upstream_timeouts(const timeval *read_timeout,
const timeval *write_timeout);
int validate_next_proto();
const std::string& get_ipaddr() const;
bool get_should_close_after_write() const;
void set_should_close_after_write(bool f);
Upstream* get_upstream();
private:
bufferevent *bev_;
SSL *ssl_;
Upstream *upstream_;
std::string ipaddr_;
bool should_close_after_write_;
};
} // namespace shrpx
#endif // SHRPX_CLIENT_HANDLER_H

63
examples/shrpx_config.cc Normal file
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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_config.h"
namespace shrpx {
Config::Config()
: verbose(false),
daemon(false),
host(0),
port(0),
private_key_file(0),
cert_file(0),
verify_client(false),
server_name(0),
downstream_host(0),
downstream_port(0),
downstream_hostport(0),
downstream_addrlen(0)
{}
namespace {
Config *config = 0;
} // namespace
const Config* get_config()
{
return config;
}
Config* mod_config()
{
return config;
}
void create_config()
{
config = new Config();
}
} // namespace shrpx

74
examples/shrpx_config.h Normal file
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@ -0,0 +1,74 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_CONFIG_H
#define SHRPX_CONFIG_H
#include <stdint.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string>
namespace shrpx {
union sockaddr_union {
sockaddr sa;
sockaddr_storage storage;
sockaddr_in6 in6;
sockaddr_in in;
};
struct Config {
bool verbose;
bool daemon;
const char *host;
uint16_t port;
const char *private_key_file;
const char *cert_file;
bool verify_client;
const char *server_name;
const char *downstream_host;
uint16_t downstream_port;
const char *downstream_hostport;
sockaddr_union downstream_addr;
size_t downstream_addrlen;
timeval upstream_read_timeout;
timeval upstream_write_timeout;
timeval spdy_upstream_read_timeout;
timeval spdy_upstream_write_timeout;
timeval downstream_read_timeout;
timeval downstream_write_timeout;
Config();
};
const Config* get_config();
Config* mod_config();
void create_config();
} // namespace shrpx
#endif // SHRPX_CONFIG_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_downstream.h"
#include <cassert>
#include "shrpx_upstream.h"
#include "shrpx_client_handler.h"
#include "shrpx_config.h"
#include "shrpx_error.h"
#include "util.h"
using namespace spdylay;
namespace shrpx {
Downstream::Downstream(Upstream *upstream, int stream_id, int priority)
: upstream_(upstream),
bev_(0),
stream_id_(stream_id),
priority_(priority),
request_state_(INITIAL),
chunked_request_(false),
request_connection_close_(false),
response_state_(INITIAL),
response_http_status_(0),
chunked_response_(false),
response_htp_(htparser_new()),
response_body_buf_(0)
{
htparser_init(response_htp_, htp_type_response);
htparser_set_userdata(response_htp_, this);
event_base *evbase = upstream_->get_client_handler()->get_evbase();
bev_ = bufferevent_socket_new
(evbase, -1,
BEV_OPT_CLOSE_ON_FREE | BEV_OPT_DEFER_CALLBACKS);
}
Downstream::~Downstream()
{
if(ENABLE_LOG) {
LOG(INFO) << "Deleting downstream" << this;
}
if(response_body_buf_) {
// Passing NULL to evbuffer_free() causes segmentation fault.
evbuffer_free(response_body_buf_);
}
bufferevent_disable(bev_, EV_READ | EV_WRITE);
bufferevent_free(bev_);
free(response_htp_);
if(ENABLE_LOG) {
LOG(INFO) << "Deleted";
}
}
namespace {
void check_transfer_encoding_chunked(bool *chunked,
const Headers::value_type &item)
{
if(util::strieq(item.first.c_str(), "transfer-encoding")) {
if(util::strifind(item.second.c_str(), "chunked")) {
*chunked = true;
}
}
}
} // namespace
namespace {
void check_request_connection(bool *connection_close,
const Headers::value_type &item)
{
if(util::strieq(item.first.c_str(), "connection")) {
if(util::strifind(item.second.c_str(), "close")) {
*connection_close = true;
}
}
}
} // namespace
void Downstream::add_request_header(const std::string& name,
const std::string& value)
{
request_headers_.push_back(std::make_pair(name, value));
}
void Downstream::set_last_request_header_value(const std::string& value)
{
Headers::value_type &item = request_headers_.back();
item.second = value;
check_transfer_encoding_chunked(&chunked_request_, item);
check_request_connection(&request_connection_close_, item);
}
void Downstream::set_request_method(const std::string& method)
{
request_method_ = method;
}
void Downstream::set_request_path(const std::string& path)
{
request_path_ = path;
}
Upstream* Downstream::get_upstream() const
{
return upstream_;
}
int32_t Downstream::get_stream_id() const
{
return stream_id_;
}
int Downstream::start_connection()
{
bufferevent_setcb(bev_,
upstream_->get_downstream_readcb(),
upstream_->get_downstream_writecb(),
upstream_->get_downstream_eventcb(), this);
bufferevent_enable(bev_, EV_READ | EV_WRITE);
bufferevent_set_timeouts(bev_,
&get_config()->downstream_read_timeout,
&get_config()->downstream_write_timeout);
bufferevent_socket_connect
(bev_,
// TODO maybe not thread-safe?
const_cast<sockaddr*>(&get_config()->downstream_addr.sa),
get_config()->downstream_addrlen);
return 0;
}
void Downstream::set_request_state(int state)
{
request_state_ = state;
}
int Downstream::get_request_state() const
{
return request_state_;
}
bool Downstream::get_chunked_request() const
{
return chunked_request_;
}
bool Downstream::get_request_connection_close() const
{
return request_connection_close_;
}
void Downstream::set_request_connection_close(bool f)
{
request_connection_close_ = f;
}
int Downstream::push_request_headers()
{
bool xff_found = false;
std::string hdrs = request_method_;
hdrs += " ";
hdrs += request_path_;
hdrs += " ";
hdrs += "HTTP/1.1\r\n";
hdrs += "Host: ";
hdrs += get_config()->downstream_hostport;
hdrs += "\r\n";
// TODO Rewrite user-agent?
for(Headers::const_iterator i = request_headers_.begin();
i != request_headers_.end(); ++i) {
if(util::strieq((*i).first.c_str(), "X-Forwarded-Proto")) {
continue;
}
if(util::strieq((*i).first.c_str(), "user-agent")) {
hdrs += "User-Agent: ";
hdrs += get_config()->server_name;
} else {
hdrs += (*i).first;
hdrs += ": ";
hdrs += (*i).second;
if(!xff_found && util::strieq((*i).first.c_str(), "X-Forwarded-For")) {
xff_found = true;
hdrs += ", ";
hdrs += upstream_->get_client_handler()->get_ipaddr();
}
}
hdrs += "\r\n";
}
hdrs += "Connection: close\r\n";
if(!xff_found) {
hdrs += "X-Forwarded-For: ";
hdrs += upstream_->get_client_handler()->get_ipaddr();
hdrs += "\r\n";
}
hdrs += "X-Forwarded-Proto: https\r\n";
hdrs += "\r\n";
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> request headers\n" << hdrs;
}
evbuffer *output = bufferevent_get_output(bev_);
evbuffer_add(output, hdrs.c_str(), hdrs.size());
return 0;
}
int Downstream::push_upload_data_chunk(const uint8_t *data, size_t datalen)
{
// Assumes that request headers have already been pushed to output
// buffer using push_request_headers().
ssize_t res = 0;
int rv;
evbuffer *output = bufferevent_get_output(bev_);
if(chunked_request_) {
char chunk_size_hex[16];
rv = snprintf(chunk_size_hex, sizeof(chunk_size_hex), "%X\r\n",
static_cast<unsigned int>(datalen));
evbuffer_add(output, chunk_size_hex, rv);
res += rv;
}
rv = evbuffer_add(output, data, datalen);
if(rv == -1) {
return -1;
}
res += rv;
return res;
}
int Downstream::end_upload_data()
{
if(chunked_request_) {
evbuffer *output = bufferevent_get_output(bev_);
evbuffer_add(output, "0\r\n\r\n", 5);
}
return 0;
}
const Headers& Downstream::get_response_headers() const
{
return response_headers_;
}
void Downstream::add_response_header(const std::string& name,
const std::string& value)
{
response_headers_.push_back(std::make_pair(name, value));
}
void Downstream::set_last_response_header_value(const std::string& value)
{
Headers::value_type &item = response_headers_.back();
item.second = value;
check_transfer_encoding_chunked(&chunked_response_, item);
}
unsigned int Downstream::get_response_http_status() const
{
return response_http_status_;
}
void Downstream::set_response_http_status(unsigned int status)
{
response_http_status_ = status;
}
bool Downstream::get_chunked_response() const
{
return chunked_response_;
}
namespace {
int htp_hdrs_completecb(htparser *htp)
{
Downstream *downstream;
downstream = reinterpret_cast<Downstream*>(htparser_get_userdata(htp));
downstream->set_response_http_status(htparser_get_status(htp));
downstream->set_response_state(Downstream::HEADER_COMPLETE);
downstream->get_upstream()->on_downstream_header_complete(downstream);
return 0;
}
} // namespace
namespace {
int htp_hdr_keycb(htparser *htp, const char *data, size_t len)
{
Downstream *downstream;
downstream = reinterpret_cast<Downstream*>(htparser_get_userdata(htp));
downstream->add_response_header(std::string(data, len), "");
return 0;
}
} // namespace
namespace {
int htp_hdr_valcb(htparser *htp, const char *data, size_t len)
{
Downstream *downstream;
downstream = reinterpret_cast<Downstream*>(htparser_get_userdata(htp));
downstream->set_last_response_header_value(std::string(data, len));
return 0;
}
} // namespace
namespace {
int htp_bodycb(htparser *htp, const char *data, size_t len)
{
Downstream *downstream;
downstream = reinterpret_cast<Downstream*>(htparser_get_userdata(htp));
downstream->get_upstream()->on_downstream_body
(downstream, reinterpret_cast<const uint8_t*>(data), len);
return 0;
}
} // namespace
namespace {
int htp_body_completecb(htparser *htp)
{
Downstream *downstream;
downstream = reinterpret_cast<Downstream*>(htparser_get_userdata(htp));
downstream->set_response_state(Downstream::MSG_COMPLETE);
downstream->get_upstream()->on_downstream_body_complete(downstream);
return 0;
}
} // namespace
namespace {
htparse_hooks htp_hooks = {
0, /*htparse_hook on_msg_begin;*/
0, /*htparse_data_hook method;*/
0, /* htparse_data_hook scheme;*/
0, /* htparse_data_hook host; */
0, /* htparse_data_hook port; */
0, /* htparse_data_hook path; */
0, /* htparse_data_hook args; */
0, /* htparse_data_hook uri; */
0, /* htparse_hook on_hdrs_begin; */
htp_hdr_keycb, /* htparse_data_hook hdr_key; */
htp_hdr_valcb, /* htparse_data_hook hdr_val; */
htp_hdrs_completecb, /* htparse_hook on_hdrs_complete; */
0, /*htparse_hook on_new_chunk;*/
0, /*htparse_hook on_chunk_complete;*/
0, /*htparse_hook on_chunks_complete;*/
htp_bodycb, /* htparse_data_hook body; */
htp_body_completecb /* htparse_hook on_msg_complete;*/
};
} // namespace
int Downstream::parse_http_response()
{
evbuffer *input = bufferevent_get_input(bev_);
unsigned char *mem = evbuffer_pullup(input, -1);
size_t nread = htparser_run(response_htp_, &htp_hooks,
reinterpret_cast<const char*>(mem),
evbuffer_get_length(input));
evbuffer_drain(input, nread);
if(htparser_get_error(response_htp_) == htparse_error_none) {
return 0;
} else {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> http parser failure: "
<< htparser_get_strerror(response_htp_);
}
return SHRPX_ERR_HTTP_PARSE;
}
}
void Downstream::set_response_state(int state)
{
response_state_ = state;
}
int Downstream::get_response_state() const
{
return response_state_;
}
int Downstream::init_response_body_buf()
{
assert(response_body_buf_ == 0);
response_body_buf_ = evbuffer_new();
if(response_body_buf_ == 0) {
DIE();
}
return 0;
}
evbuffer* Downstream::get_response_body_buf()
{
return response_body_buf_;
}
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_DOWNSTREAM_H
#define SHRPX_DOWNSTREAM_H
#include "shrpx.h"
#include <stdint.h>
#include <vector>
#include <string>
#include <event.h>
#include <event2/bufferevent.h>
extern "C" {
#include "htparse/htparse.h"
}
namespace shrpx {
class Upstream;
typedef std::vector<std::pair<std::string, std::string> > Headers;
class Downstream {
public:
Downstream(Upstream *upstream, int stream_id, int priority);
~Downstream();
int start_connection();
Upstream* get_upstream() const;
int32_t get_stream_id() const;
// downstream request API
const Headers& get_request_headers() const;
void add_request_header(const std::string& name, const std::string& value);
void set_last_request_header_value(const std::string& value);
void set_request_method(const std::string& method);
void set_request_path(const std::string& path);
int push_request_headers();
bool get_chunked_request() const;
bool get_request_connection_close() const;
void set_request_connection_close(bool f);
int push_upload_data_chunk(const uint8_t *data, size_t datalen);
int end_upload_data();
enum {
INITIAL,
HEADER_COMPLETE,
MSG_COMPLETE,
STREAM_CLOSED
};
void set_request_state(int state);
int get_request_state() const;
// downstream response API
const Headers& get_response_headers() const;
void add_response_header(const std::string& name, const std::string& value);
void set_last_response_header_value(const std::string& value);
unsigned int get_response_http_status() const;
void set_response_http_status(unsigned int status);
bool get_chunked_response() const;
int parse_http_response();
void set_response_state(int state);
int get_response_state() const;
int init_response_body_buf();
evbuffer* get_response_body_buf();
private:
Upstream *upstream_;
bufferevent *bev_;
int32_t stream_id_;
int priority_;
int request_state_;
std::string request_method_;
std::string request_path_;
bool chunked_request_;
bool request_connection_close_;
Headers request_headers_;
int response_state_;
unsigned int response_http_status_;
bool chunked_response_;
Headers response_headers_;
htparser *response_htp_;
evbuffer *response_body_buf_;
};
} // namespace shrpx
#endif // SHRPX_DOWNSTREAM_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_downstream_queue.h"
#include "shrpx_downstream.h"
namespace shrpx {
DownstreamQueue::DownstreamQueue()
{}
DownstreamQueue::~DownstreamQueue()
{
for(std::map<int32_t, Downstream*>::iterator i = downstreams_.begin();
i != downstreams_.end(); ++i) {
delete (*i).second;
}
}
void DownstreamQueue::add(Downstream *downstream)
{
downstreams_[downstream->get_stream_id()] = downstream;
}
void DownstreamQueue::start(Downstream *downstream)
{
downstream->start_connection();
}
void DownstreamQueue::remove(Downstream *downstream)
{
downstreams_.erase(downstream->get_stream_id());
}
Downstream* DownstreamQueue::find(int32_t stream_id)
{
std::map<int32_t, Downstream*>::iterator i = downstreams_.find(stream_id);
if(i == downstreams_.end()) {
return 0;
} else {
return (*i).second;
}
}
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_DOWNSTREAM_QUEUE_H
#define SHRPX_DOWNSTREAM_QUEUE_H
#include "shrpx.h"
#include <stdint.h>
#include <map>
namespace shrpx {
class Downstream;
class DownstreamQueue {
public:
DownstreamQueue();
~DownstreamQueue();
void add(Downstream *downstream);
void start(Downstream *downstream);
void remove(Downstream *downstream);
Downstream* find(int32_t stream_id);
private:
std::map<int32_t, Downstream*> downstreams_;
};
} // namespace shrpx
#endif // SHRPX_DOWNSTREAM_QUEUE_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_ERROR_H
#define SHRPX_ERROR_H
namespace shrpx {
enum ErrorCode {
SHRPX_ERR_SUCCESS = 0,
SHRPX_ERR_UNKNOWN = -1,
SHRPX_ERR_HTTP_PARSE = -2
};
} // namespace shrpx
#endif // SHRPX_ERROR_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_http.h"
#include <sstream>
#include "shrpx_config.h"
namespace shrpx {
namespace http {
const char* get_status_string(int status_code)
{
switch(status_code) {
case 100: return "100 Continue";
case 101: return "101 Switching Protocols";
case 200: return "200 OK";
case 201: return "201 Created";
case 202: return "202 Accepted";
case 203: return "203 Non-Authoritative Information";
case 204: return "204 No Content";
case 205: return "205 Reset Content";
case 206: return "206 Partial Content";
case 300: return "300 Multiple Choices";
case 301: return "301 Moved Permanently";
case 302: return "302 Found";
case 303: return "303 See Other";
case 304: return "304 Not Modified";
case 305: return "305 Use Proxy";
// case 306: return "306 (Unused)";
case 307: return "307 Temporary Redirect";
case 400: return "400 Bad Request";
case 401: return "401 Unauthorized";
case 402: return "402 Payment Required";
case 403: return "403 Forbidden";
case 404: return "404 Not Found";
case 405: return "405 Method Not Allowed";
case 406: return "406 Not Acceptable";
case 407: return "407 Proxy Authentication Required";
case 408: return "408 Request Timeout";
case 409: return "409 Conflict";
case 410: return "410 Gone";
case 411: return "411 Length Required";
case 412: return "412 Precondition Failed";
case 413: return "413 Request Entity Too Large";
case 414: return "414 Request-URI Too Long";
case 415: return "415 Unsupported Media Type";
case 416: return "416 Requested Range Not Satisfiable";
case 417: return "417 Expectation Failed";
case 500: return "500 Internal Server Error";
case 501: return "501 Not Implemented";
case 502: return "502 Bad Gateway";
case 503: return "503 Service Unavailable";
case 504: return "504 Gateway Timeout";
case 505: return "505 HTTP Version Not Supported";
default: return "";
}
}
std::string create_error_html(int status_code)
{
std::stringstream ss;
const char *status = http::get_status_string(status_code);
ss << "<html><head><title>" << status << "</title></head><body>"
<< "<h1>" << status << "</h1>"
<< "<hr>"
<< "<address>" << get_config()->server_name << " at port "
<< get_config()->port
<< "</address>"
<< "</body></html>";
return ss.str();
}
} // namespace http
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_HTTP_H
#define SHRPX_HTTP_H
#include <string>
namespace shrpx {
namespace http {
const char* get_status_string(int status_code);
std::string create_error_html(int status_code);
} // namespace http
} // namespace shrpx
#endif // SHRPX_HTTP_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_https_upstream.h"
#include <cassert>
#include <set>
#include "shrpx_client_handler.h"
#include "shrpx_downstream.h"
#include "shrpx_http.h"
#include "shrpx_config.h"
#include "shrpx_error.h"
#include "util.h"
using namespace spdylay;
namespace shrpx {
HttpsUpstream::HttpsUpstream(ClientHandler *handler)
: handler_(handler),
htp_(htparser_new())
{
if(ENABLE_LOG) {
LOG(INFO) << "HttpsUpstream ctor";
}
htparser_init(htp_, htp_type_request);
htparser_set_userdata(htp_, this);
}
HttpsUpstream::~HttpsUpstream()
{
free(htp_);
for(std::deque<Downstream*>::iterator i = downstream_queue_.begin();
i != downstream_queue_.end(); ++i) {
delete *i;
}
}
namespace {
int htp_msg_begin(htparser *htp)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<https> request start";
}
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = new Downstream(upstream, 0, 0);
upstream->add_downstream(downstream);
return 0;
}
} // namespace
namespace {
int htp_methodcb(htparser *htp, const char *data, size_t len)
{
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->set_request_method(std::string(data, len));
return 0;
}
} // namespace
namespace {
int htp_uricb(htparser *htp, const char *data, size_t len)
{
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->set_request_path(std::string(data, len));
return 0;
}
} // namespace
namespace {
int htp_hdrs_begincb(htparser *htp)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<https> request headers start";
}
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
int version = htparser_get_major(htp)*100 + htparser_get_minor(htp);
if(version < 101) {
downstream->set_request_connection_close(true);
}
return 0;
}
} // namespace
namespace {
int htp_hdr_keycb(htparser *htp, const char *data, size_t len)
{
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->add_request_header(std::string(data, len), "");
return 0;
}
} // namespace
namespace {
int htp_hdr_valcb(htparser *htp, const char *data, size_t len)
{
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->set_last_request_header_value(std::string(data, len));
return 0;
}
} // namespace
namespace {
int htp_hdrs_completecb(htparser *htp)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<https> request headers complete";
}
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->push_request_headers();
downstream->set_request_state(Downstream::HEADER_COMPLETE);
downstream->start_connection();
return 0;
}
} // namespace
namespace {
int htp_bodycb(htparser *htp, const char *data, size_t len)
{
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->push_upload_data_chunk(reinterpret_cast<const uint8_t*>(data),
len);
return 0;
}
} // namespace
namespace {
int htp_msg_completecb(htparser *htp)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<https> request complete";
}
HttpsUpstream *upstream;
upstream = reinterpret_cast<HttpsUpstream*>(htparser_get_userdata(htp));
Downstream *downstream = upstream->get_last_downstream();
downstream->end_upload_data();
downstream->set_request_state(Downstream::MSG_COMPLETE);
// Stop further processing to complete this request
return 1;
}
} // namespace
namespace {
htparse_hooks htp_hooks = {
htp_msg_begin, /*htparse_hook on_msg_begin;*/
htp_methodcb, /*htparse_data_hook method;*/
0, /* htparse_data_hook scheme;*/
0, /* htparse_data_hook host; */
0, /* htparse_data_hook port; */
0, /* htparse_data_hook path; */
0, /* htparse_data_hook args; */
htp_uricb, /* htparse_data_hook uri; */
htp_hdrs_begincb, /* htparse_hook on_hdrs_begin; */
htp_hdr_keycb, /* htparse_data_hook hdr_key; */
htp_hdr_valcb, /* htparse_data_hook hdr_val; */
htp_hdrs_completecb, /* htparse_hook on_hdrs_complete; */
0, /*htparse_hook on_new_chunk;*/
0, /*htparse_hook on_chunk_complete;*/
0, /*htparse_hook on_chunks_complete;*/
htp_bodycb, /* htparse_data_hook body; */
htp_msg_completecb /* htparse_hook on_msg_complete;*/
};
} // namespace
std::set<HttpsUpstream*> cache;
// on_read() does not consume all available data in input buffer if
// one http request is fully received.
int HttpsUpstream::on_read()
{
if(cache.count(this) == 0) {
LOG(INFO) << "HttpsUpstream::on_read";
cache.insert(this);
}
bufferevent *bev = handler_->get_bev();
evbuffer *input = bufferevent_get_input(bev);
unsigned char *mem = evbuffer_pullup(input, -1);
int nread = htparser_run(htp_, &htp_hooks,
reinterpret_cast<const char*>(mem),
evbuffer_get_length(input));
evbuffer_drain(input, nread);
htpparse_error htperr = htparser_get_error(htp_);
if(htperr == htparse_error_user) {
bufferevent_disable(bev, EV_READ);
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> remaining bytes " << evbuffer_get_length(input);
}
} else if(htperr != htparse_error_none) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream> http parse failure: "
<< htparser_get_strerror(htp_);
}
return SHRPX_ERR_HTTP_PARSE;
}
return 0;
}
int HttpsUpstream::on_event()
{
return 0;
}
ClientHandler* HttpsUpstream::get_client_handler() const
{
return handler_;
}
void HttpsUpstream::resume_read()
{
bufferevent_enable(handler_->get_bev(), EV_READ);
// Process remaining data in input buffer here.
on_read();
}
namespace {
void https_downstream_readcb(bufferevent *bev, void *ptr)
{
Downstream *downstream = reinterpret_cast<Downstream*>(ptr);
HttpsUpstream *upstream;
upstream = static_cast<HttpsUpstream*>(downstream->get_upstream());
int rv = downstream->parse_http_response();
if(rv == 0) {
if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
assert(downstream == upstream->get_top_downstream());
upstream->pop_downstream();
delete downstream;
upstream->resume_read();
}
} else {
if(downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
delete upstream->get_client_handler();
} else {
upstream->error_reply(downstream, 502);
assert(downstream == upstream->get_top_downstream());
upstream->pop_downstream();
delete downstream;
upstream->resume_read();
}
}
}
} // namespace
namespace {
void https_downstream_writecb(bufferevent *bev, void *ptr)
{
}
} // namespace
namespace {
void https_downstream_eventcb(bufferevent *bev, short events, void *ptr)
{
Downstream *downstream = reinterpret_cast<Downstream*>(ptr);
HttpsUpstream *upstream;
upstream = static_cast<HttpsUpstream*>(downstream->get_upstream());
if(events & BEV_EVENT_CONNECTED) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Connection established. " << downstream;
}
}
if(events & BEV_EVENT_EOF) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> EOF stream_id="
<< downstream->get_stream_id();
}
if(downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
// Server may indicate the end of the request by EOF
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Assuming content-length is 0 byte";
}
upstream->on_downstream_body_complete(downstream);
//downstream->set_response_state(Downstream::MSG_COMPLETE);
} else if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
// Nothing to do
} else {
// error
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Treated as error";
}
upstream->error_reply(downstream, 502);
}
upstream->pop_downstream();
delete downstream;
upstream->resume_read();
} else if(events & (BEV_EVENT_ERROR | BEV_EVENT_TIMEOUT)) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> error/timeout. " << downstream;
}
if(downstream->get_response_state() == Downstream::INITIAL) {
int status;
if(events & BEV_EVENT_TIMEOUT) {
status = 504;
} else {
status = 502;
}
upstream->error_reply(downstream, status);
}
upstream->pop_downstream();
delete downstream;
upstream->resume_read();
}
}
} // namespace
void HttpsUpstream::error_reply(Downstream *downstream, int status_code)
{
std::string html = http::create_error_html(status_code);
std::stringstream ss;
ss << "HTTP/1.1 " << http::get_status_string(status_code) << "\r\n"
<< "Server: " << get_config()->server_name << "\r\n"
<< "Content-Length: " << html.size() << "\r\n"
<< "Content-Type: " << "text/html; charset=UTF-8\r\n"
<< "\r\n";
std::string header = ss.str();
evbuffer *output = bufferevent_get_output(handler_->get_bev());
evbuffer_add(output, header.c_str(), header.size());
evbuffer_add(output, html.c_str(), html.size());
downstream->set_response_state(Downstream::MSG_COMPLETE);
}
bufferevent_data_cb HttpsUpstream::get_downstream_readcb()
{
return https_downstream_readcb;
}
bufferevent_data_cb HttpsUpstream::get_downstream_writecb()
{
return https_downstream_writecb;
}
bufferevent_event_cb HttpsUpstream::get_downstream_eventcb()
{
return https_downstream_eventcb;
}
void HttpsUpstream::add_downstream(Downstream *downstream)
{
downstream_queue_.push_back(downstream);
}
void HttpsUpstream::pop_downstream()
{
downstream_queue_.pop_front();
}
Downstream* HttpsUpstream::get_top_downstream()
{
return downstream_queue_.front();
}
Downstream* HttpsUpstream::get_last_downstream()
{
return downstream_queue_.back();
}
int HttpsUpstream::on_downstream_header_complete(Downstream *downstream)
{
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> on_downstream_header_complete";
}
std::string hdrs = "HTTP/1.1 ";
hdrs += http::get_status_string(downstream->get_response_http_status());
hdrs += "\r\n";
for(Headers::const_iterator i = downstream->get_response_headers().begin();
i != downstream->get_response_headers().end(); ++i) {
if(util::strieq((*i).first.c_str(), "keep-alive") || // HTTP/1.0?
util::strieq((*i).first.c_str(), "connection") ||
util:: strieq((*i).first.c_str(), "proxy-connection")) {
// These are ignored
} else {
if(util::strieq((*i).first.c_str(), "server")) {
hdrs += "Server: ";
hdrs += get_config()->server_name;
} else {
hdrs += (*i).first;
hdrs += ": ";
hdrs += (*i).second;
}
hdrs += "\r\n";
}
}
if(downstream->get_request_connection_close()) {
hdrs += "Connection: close\r\n";
}
hdrs += "\r\n";
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<https> Response headers\n" << hdrs;
}
evbuffer *output = bufferevent_get_output(handler_->get_bev());
evbuffer_add(output, hdrs.c_str(), hdrs.size());
return 0;
}
int HttpsUpstream::on_downstream_body(Downstream *downstream,
const uint8_t *data, size_t len)
{
int rv;
evbuffer *output = bufferevent_get_output(handler_->get_bev());
if(downstream->get_chunked_response()) {
char chunk_size_hex[16];
rv = snprintf(chunk_size_hex, sizeof(chunk_size_hex), "%X\r\n",
static_cast<unsigned int>(len));
evbuffer_add(output, chunk_size_hex, rv);
}
evbuffer_add(output, data, len);
return 0;
}
int HttpsUpstream::on_downstream_body_complete(Downstream *downstream)
{
if(downstream->get_chunked_response()) {
evbuffer *output = bufferevent_get_output(handler_->get_bev());
evbuffer_add(output, "0\r\n\r\n", 5);
}
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> on_downstream_body_complete";
}
if(downstream->get_request_connection_close()) {
ClientHandler *handler = downstream->get_upstream()->get_client_handler();
handler->set_should_close_after_write(true);
}
return 0;
}
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_HTTPS_UPSTREAM_H
#define SHRPX_HTTPS_UPSTREAM_H
#include "shrpx.h"
#include <stdint.h>
#include <deque>
extern "C" {
#include "htparse/htparse.h"
}
#include "shrpx_upstream.h"
namespace shrpx {
class ClientHandler;
class HttpsUpstream : public Upstream {
public:
HttpsUpstream(ClientHandler *handler);
virtual ~HttpsUpstream();
virtual int on_read();
virtual int on_event();
//int send();
virtual ClientHandler* get_client_handler() const;
virtual bufferevent_data_cb get_downstream_readcb();
virtual bufferevent_data_cb get_downstream_writecb();
virtual bufferevent_event_cb get_downstream_eventcb();
void add_downstream(Downstream *downstream);
void pop_downstream();
Downstream* get_top_downstream();
Downstream* get_last_downstream();
void error_reply(Downstream *downstream, int status_code);
void resume_read();
virtual int on_downstream_header_complete(Downstream *downstream);
virtual int on_downstream_body(Downstream *downstream,
const uint8_t *data, size_t len);
virtual int on_downstream_body_complete(Downstream *downstream);
private:
ClientHandler *handler_;
htparser *htp_;
std::deque<Downstream*> downstream_queue_;
};
} // namespace shrpx
#endif // SHRPX_HTTPS_UPSTREAM_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_listen_handler.h"
#include <event2/bufferevent_ssl.h>
#include "shrpx_client_handler.h"
namespace shrpx {
ListenHandler::ListenHandler(event_base *evbase, SSL_CTX *ssl_ctx)
: evbase_(evbase),
ssl_ctx_(ssl_ctx)
{}
ListenHandler::~ListenHandler()
{}
int ListenHandler::accept_connection(evutil_socket_t fd,
sockaddr *addr, int addrlen)
{
if(ENABLE_LOG) {
LOG(INFO) << "<listener> Accepted connection. fd=" << fd;
}
char host[NI_MAXHOST];
int rv;
rv = getnameinfo(addr, addrlen, host, sizeof(host), 0, 0, NI_NUMERICHOST);
if(rv == 0) {
SSL *ssl = SSL_new(ssl_ctx_);
bufferevent *bev = bufferevent_openssl_socket_new
(evbase_, fd, ssl,
BUFFEREVENT_SSL_ACCEPTING,
BEV_OPT_DEFER_CALLBACKS);
if(bev == NULL) {
if(ENABLE_LOG) {
LOG(ERROR) << "<listener> bufferevent_openssl_socket_new failed";
}
close(fd);
} else {
/*ClientHandler *client_handler =*/ new ClientHandler(bev, ssl, host);
}
} else {
if(ENABLE_LOG) {
LOG(INFO) << "<listener> getnameinfo failed";
}
close(fd);
}
return 0;
}
event_base* ListenHandler::get_evbase() const
{
return evbase_;
}
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_LISTEN_HANDLER_H
#define SHRPX_LISTEN_HANDLER_H
#include "shrpx.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <openssl/ssl.h>
#include <event.h>
namespace shrpx {
class ListenHandler {
public:
ListenHandler(event_base *evbase, SSL_CTX *ssl_ctx);
~ListenHandler();
int accept_connection(evutil_socket_t fd, sockaddr *addr, int addrlen);
event_base* get_evbase() const;
private:
event_base *evbase_;
SSL_CTX *ssl_ctx_;
};
} // namespace shrpx
#endif // SHRPX_LISTEN_HANDLER_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_log.h"
#include <cstdio>
namespace shrpx {
const char *SEVERITY_STR[] = {
"INFO", "WARN", "ERROR", "FATAL"
};
Log::Log(int severity, const char *filename, int linenum)
: severity_(severity),
filename_(filename),
linenum_(linenum)
{}
Log::~Log()
{
fprintf(stderr, "[%s] %s\n (%s, line %d)\n",
SEVERITY_STR[severity_], stream_.str().c_str(),
filename_, linenum_);
fflush(stderr);
}
} // namespace shrpx

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_LOG_H
#define SHRPX_LOG_H
#include "shrpx.h"
#include <sstream>
namespace shrpx {
#define ENABLE_LOG 1
#define LOG(SEVERITY) Log(SEVERITY, __FILE__, __LINE__)
enum SeverityLevel {
INFO, WARNING, ERROR, FATAL
};
class Log {
public:
Log(int severiy, const char *filename, int linenum);
~Log();
template<typename Type> Log& operator<<(Type s)
{
stream_ << s;
return *this;
}
private:
int severity_;
const char *filename_;
int linenum_;
std::stringstream stream_;
};
} // namespace shrpx
#endif // SHRPX_LOG_H

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/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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_spdy_upstream.h"
#include <assert.h>
#include <sstream>
#include "shrpx_client_handler.h"
#include "shrpx_downstream.h"
#include "shrpx_config.h"
#include "shrpx_http.h"
#include "util.h"
using namespace spdylay;
namespace shrpx {
namespace {
ssize_t send_callback(spdylay_session *session,
const uint8_t *data, size_t len, int flags,
void *user_data)
{
int rv;
SpdyUpstream *upstream = reinterpret_cast<SpdyUpstream*>(user_data);
ClientHandler *handler = upstream->get_client_handler();
bufferevent *bev = handler->get_bev();
evbuffer *output = bufferevent_get_output(bev);
rv = evbuffer_add(output, data, len);
if(rv == -1) {
return SPDYLAY_ERR_CALLBACK_FAILURE;
} else {
return len;
}
}
} // namespace
namespace {
ssize_t recv_callback(spdylay_session *session,
uint8_t *data, size_t len, int flags, void *user_data)
{
SpdyUpstream *upstream = reinterpret_cast<SpdyUpstream*>(user_data);
ClientHandler *handler = upstream->get_client_handler();
bufferevent *bev = handler->get_bev();
evbuffer *input = bufferevent_get_input(bev);
int nread = evbuffer_remove(input, data, len);
if(nread == -1) {
return SPDYLAY_ERR_CALLBACK_FAILURE;
} else if(nread == 0) {
return SPDYLAY_ERR_WOULDBLOCK;
} else {
return nread;
}
}
} // namespace
namespace {
void on_stream_close_callback
(spdylay_session *session, int32_t stream_id, spdylay_status_code status_code,
void *user_data)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<spdy> Stream " << stream_id
<< " is being closed";
}
SpdyUpstream *upstream = reinterpret_cast<SpdyUpstream*>(user_data);
Downstream *downstream = upstream->get_downstream_queue()->find(stream_id);
if(downstream) {
downstream->set_request_state(Downstream::STREAM_CLOSED);
if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
upstream->get_downstream_queue()->remove(downstream);
delete downstream;
}
}
}
} // namespace
namespace {
void on_ctrl_recv_callback
(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
void *user_data)
{
SpdyUpstream *upstream = reinterpret_cast<SpdyUpstream*>(user_data);
switch(type) {
case SPDYLAY_SYN_STREAM: {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<spdy> Received upstream SYN_STREAM stream_id="
<< frame->syn_stream.stream_id;
}
Downstream *downstream = new Downstream(upstream,
frame->syn_stream.stream_id,
frame->syn_stream.pri);
downstream->init_response_body_buf();
char **nv = frame->syn_stream.nv;
for(size_t i = 0; nv[i]; i += 2) {
if(strcmp(nv[i], ":path") == 0) {
downstream->set_request_path(nv[i+1]);
} else if(strcmp(nv[i], ":method") == 0) {
downstream->set_request_method(nv[i+1]);
} else if(nv[i][0] != ':') {
downstream->add_request_header(nv[i], nv[i+1]);
}
}
downstream->add_request_header("X-Forwarded-Spdy", "true");
if(ENABLE_LOG) {
std::stringstream ss;
for(size_t i = 0; nv[i]; i += 2) {
ss << nv[i] << ": " << nv[i+1] << "\n";
}
LOG(INFO) << "<upstream>::<spdy> Request headers:\n" << ss.str();
}
downstream->push_request_headers();
downstream->set_request_state(Downstream::HEADER_COMPLETE);
if(frame->syn_stream.hd.flags & SPDYLAY_CTRL_FLAG_FIN) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<spdy> "
<< "Setting Downstream::MSG_COMPLETE for Downstream "
<< downstream;
}
downstream->set_request_state(Downstream::MSG_COMPLETE);
}
upstream->add_downstream(downstream);
upstream->start_downstream(downstream);
break;
}
default:
break;
}
}
} // namespace
namespace {
void on_data_chunk_recv_callback(spdylay_session *session,
uint8_t flags, int32_t stream_id,
const uint8_t *data, size_t len,
void *user_data)
{
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<spdy> Received upstream DATA data stream_id="
<< stream_id;
}
SpdyUpstream *upstream = reinterpret_cast<SpdyUpstream*>(user_data);
Downstream *downstream = upstream->get_downstream_queue()->find(stream_id);
if(downstream) {
downstream->push_upload_data_chunk(data, len);
if(flags & SPDYLAY_DATA_FLAG_FIN) {
if(ENABLE_LOG) {
LOG(INFO) << "<upstream>::<spdy> "
<< "Setting Downstream::MSG_COMPLETE for Downstream "
<< downstream;
}
downstream->set_request_state(Downstream::MSG_COMPLETE);
}
}
}
} // namespace
SpdyUpstream::SpdyUpstream(uint16_t version, ClientHandler *handler)
: handler_(handler),
session_(0)
{
//handler->set_bev_cb(spdy_readcb, 0, spdy_eventcb);
handler->set_upstream_timeouts(&get_config()->spdy_upstream_read_timeout,
&get_config()->spdy_upstream_write_timeout);
spdylay_session_callbacks callbacks;
memset(&callbacks, 0, sizeof(callbacks));
callbacks.send_callback = send_callback;
callbacks.recv_callback = recv_callback;
callbacks.on_stream_close_callback = on_stream_close_callback;
callbacks.on_ctrl_recv_callback = on_ctrl_recv_callback;
callbacks.on_data_chunk_recv_callback = on_data_chunk_recv_callback;
int rv;
rv = spdylay_session_server_new(&session_, version, &callbacks, this);
assert(rv == 0);
// TODO Maybe call from outside?
spdylay_settings_entry entry;
entry.settings_id = SPDYLAY_SETTINGS_MAX_CONCURRENT_STREAMS;
entry.value = SPDYLAY_INITIAL_MAX_CONCURRENT_STREAMS;
entry.flags = SPDYLAY_ID_FLAG_SETTINGS_NONE;
rv = spdylay_submit_settings(session_, SPDYLAY_FLAG_SETTINGS_NONE,
&entry, 1);
assert(rv == 0);
// TODO Maybe call from outside?
send();
}
SpdyUpstream::~SpdyUpstream()
{
spdylay_session_del(session_);
}
int SpdyUpstream::on_read()
{
int rv;
if((rv = spdylay_session_recv(session_)) ||
(rv = spdylay_session_send(session_))) {
if(rv != SPDYLAY_ERR_EOF) {
LOG(ERROR) << "spdylay error: " << spdylay_strerror(rv);
DIE();
}
}
return 0;
}
int SpdyUpstream::send()
{
int rv;
if((rv = spdylay_session_send(session_))) {
LOG(ERROR) << "spdylay error: " << spdylay_strerror(rv);
DIE();
}
return 0;
}
int SpdyUpstream::on_event()
{
return 0;
}
ClientHandler* SpdyUpstream::get_client_handler() const
{
return handler_;
}
namespace {
void spdy_downstream_readcb(bufferevent *bev, void *ptr)
{
if(ENABLE_LOG) {
LOG(INFO) << "spdy_downstream_readcb";
}
Downstream *downstream = reinterpret_cast<Downstream*>(ptr);
SpdyUpstream *upstream;
upstream = static_cast<SpdyUpstream*>(downstream->get_upstream());
int rv = downstream->parse_http_response();
if(rv == 0) {
if(downstream->get_request_state() == Downstream::STREAM_CLOSED &&
downstream->get_response_state() == Downstream::MSG_COMPLETE) {
upstream->get_downstream_queue()->remove(downstream);
delete downstream;
} else {
upstream->send();
}
} else {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> http parser failure";
}
if(downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
upstream->rst_stream(downstream, SPDYLAY_INTERNAL_ERROR);
} else {
upstream->error_reply(downstream, 502);
}
downstream->set_response_state(Downstream::MSG_COMPLETE);
upstream->send();
// upstream->remove_downstream(downstream);
// delete downstream;
}
}
} // namespace
namespace {
void spdy_downstream_writecb(bufferevent *bev, void *ptr)
{
}
} // namespace
namespace {
void spdy_downstream_eventcb(bufferevent *bev, short events, void *ptr)
{
Downstream *downstream = reinterpret_cast<Downstream*>(ptr);
SpdyUpstream *upstream;
upstream = static_cast<SpdyUpstream*>(downstream->get_upstream());
if(events & BEV_EVENT_CONNECTED) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Connection established. Downstream "
<< downstream;
}
}
if(events & BEV_EVENT_EOF) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> EOF stream_id="
<< downstream->get_stream_id();
}
if(downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
// Server may indicate the end of the request by EOF
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Assuming content-length is 0 byte";
}
upstream->on_downstream_body_complete(downstream);
downstream->set_response_state(Downstream::MSG_COMPLETE);
// downstream wil be deleted in on_stream_close_callback.
} else if(downstream->get_response_state() == Downstream::MSG_COMPLETE) {
// nothing todo
} else {
// error
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> Treated as error";
}
upstream->error_reply(downstream, 502);
upstream->send();
upstream->remove_downstream(downstream);
delete downstream;
}
} else if(events & (BEV_EVENT_ERROR | BEV_EVENT_TIMEOUT)) {
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> error/timeout. Downstream " << downstream;
}
// For Downstream::MSG_COMPLETE case, downstream will be deleted
// in on_stream_close_callback.
if(downstream->get_response_state() != Downstream::MSG_COMPLETE) {
if(downstream->get_response_state() == Downstream::HEADER_COMPLETE) {
upstream->rst_stream(downstream, SPDYLAY_INTERNAL_ERROR);
} else {
int status;
if(events & BEV_EVENT_TIMEOUT) {
status = 504;
} else {
status = 502;
}
upstream->error_reply(downstream, status);
}
upstream->send();
upstream->remove_downstream(downstream);
delete downstream;
}
}
}
} // namespace
int SpdyUpstream::rst_stream(Downstream *downstream, int status_code)
{
int rv;
rv = spdylay_submit_rst_stream(session_, downstream->get_stream_id(),
status_code);
if(rv < SPDYLAY_ERR_FATAL) {
DIE();
} else {
return 0;
}
}
namespace {
ssize_t spdy_data_read_callback(spdylay_session *session,
int32_t stream_id,
uint8_t *buf, size_t length,
int *eof,
spdylay_data_source *source,
void *user_data)
{
Downstream *downstream = reinterpret_cast<Downstream*>(source->ptr);
evbuffer *body = downstream->get_response_body_buf();
assert(body);
int nread = evbuffer_remove(body, buf, length);
if(nread == 0 &&
downstream->get_response_state() == Downstream::MSG_COMPLETE) {
*eof = 1;
}
if(nread == 0 && *eof != 1) {
return SPDYLAY_ERR_DEFERRED;
}
return nread;
}
} // namespace
int SpdyUpstream::error_reply(Downstream *downstream, int status_code)
{
int rv;
std::string html = http::create_error_html(status_code);
downstream->init_response_body_buf();
evbuffer *body = downstream->get_response_body_buf();
rv = evbuffer_add(body, html.c_str(), html.size());
if(rv == -1) {
DIE();
}
downstream->set_response_state(Downstream::MSG_COMPLETE);
spdylay_data_provider data_prd;
data_prd.source.ptr = downstream;
data_prd.read_callback = spdy_data_read_callback;
const char *nv[] = {
":status", http::get_status_string(status_code),
":version", "http/1.1",
"content-type", "text/html; charset=UTF-8",
"server", get_config()->server_name,
0
};
rv = spdylay_submit_response(session_, downstream->get_stream_id(), nv,
&data_prd);
if(rv < SPDYLAY_ERR_FATAL) {
DIE();
} else {
return 0;
}
}
bufferevent_data_cb SpdyUpstream::get_downstream_readcb()
{
return spdy_downstream_readcb;
}
bufferevent_data_cb SpdyUpstream::get_downstream_writecb()
{
return spdy_downstream_writecb;
}
bufferevent_event_cb SpdyUpstream::get_downstream_eventcb()
{
return spdy_downstream_eventcb;
}
void SpdyUpstream::add_downstream(Downstream *downstream)
{
downstream_queue_.add(downstream);
}
void SpdyUpstream::start_downstream(Downstream *downstream)
{
downstream_queue_.start(downstream);
}
void SpdyUpstream::remove_downstream(Downstream *downstream)
{
downstream_queue_.remove(downstream);
}
spdylay_session* SpdyUpstream::get_spdy_session()
{
return session_;
}
int SpdyUpstream::on_downstream_header_complete(Downstream *downstream)
{
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> on_downstream_header_complete";
}
size_t nheader = downstream->get_response_headers().size();
const char **nv = new const char*[nheader * 2 + 4 + 1];
size_t hdidx = 0;
for(Headers::const_iterator i = downstream->get_response_headers().begin();
i != downstream->get_response_headers().end(); ++i) {
if(util::strieq((*i).first.c_str(), "transfer-encoding") ||
util::strieq((*i).first.c_str(), "keep-alive") || // HTTP/1.0?
util::strieq((*i).first.c_str(), "connection") ||
util:: strieq((*i).first.c_str(), "proxy-connection")) {
// These are ignored
} else if(util::strieq((*i).first.c_str(), "server")) {
nv[hdidx++] = "server";
nv[hdidx++] = get_config()->server_name;
} else {
nv[hdidx++] = (*i).first.c_str();
nv[hdidx++] = (*i).second.c_str();
}
}
nv[hdidx++] = ":status";
nv[hdidx++] = http::get_status_string(downstream->get_response_http_status());
nv[hdidx++] = ":version";
nv[hdidx++] = "HTTP/1.1";
nv[hdidx++] = 0;
if(ENABLE_LOG) {
std::stringstream ss;
for(size_t i = 0; nv[i]; i += 2) {
ss << nv[i] << ": " << nv[i+1] << "\n";
}
LOG(INFO) << "<upstream>::<spdy> Response headers\n" << ss.str();
}
spdylay_data_provider data_prd;
data_prd.source.ptr = downstream;
data_prd.read_callback = spdy_data_read_callback;
spdylay_submit_response(session_, downstream->get_stream_id(), nv,
&data_prd);
delete [] nv;
//send();
return 0;
}
int SpdyUpstream::on_downstream_body(Downstream *downstream,
const uint8_t *data, size_t len)
{
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> on_downstream_body";
}
evbuffer *body = downstream->get_response_body_buf();
evbuffer_add(body, data, len);
spdylay_session_resume_data(session_, downstream->get_stream_id());
//send();
return 0;
}
int SpdyUpstream::on_downstream_body_complete(Downstream *downstream)
{
if(ENABLE_LOG) {
LOG(INFO) << "<downstream> on_downstream_body_complete";
}
spdylay_session_resume_data(session_, downstream->get_stream_id());
//send();
return 0;
}
DownstreamQueue* SpdyUpstream::get_downstream_queue()
{
return &downstream_queue_;
}
} // namespace shrpx

71
examples/shrpx_spdy_upstream.h Normal file
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@ -0,0 +1,71 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_SPDY_UPSTREAM_H
#define SHRPX_SPDY_UPSTREAM_H
#include "shrpx.h"
#include <spdylay/spdylay.h>
#include "shrpx_upstream.h"
#include "shrpx_downstream_queue.h"
namespace shrpx {
class ClientHandler;
class SpdyUpstream : public Upstream {
public:
SpdyUpstream(uint16_t version, ClientHandler *handler);
virtual ~SpdyUpstream();
virtual int on_read();
virtual int on_event();
int send();
virtual ClientHandler* get_client_handler() const;
virtual bufferevent_data_cb get_downstream_readcb();
virtual bufferevent_data_cb get_downstream_writecb();
virtual bufferevent_event_cb get_downstream_eventcb();
void add_downstream(Downstream *downstream);
void remove_downstream(Downstream *downstream);
void start_downstream(Downstream *downstream);
spdylay_session* get_spdy_session();
DownstreamQueue* get_downstream_queue();
int rst_stream(Downstream *downstream, int status_code);
int error_reply(Downstream *downstream, int status_code);
virtual int on_downstream_header_complete(Downstream *downstream);
virtual int on_downstream_body(Downstream *downstream,
const uint8_t *data, size_t len);
virtual int on_downstream_body_complete(Downstream *downstream);
private:
ClientHandler *handler_;
spdylay_session *session_;
DownstreamQueue downstream_queue_;
};
} // namespace shrpx
#endif // SHRPX_SPDY_UPSTREAM_H

55
examples/shrpx_upstream.h Normal file
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@ -0,0 +1,55 @@
/*
* Spdylay - SPDY Library
*
* Copyright (c) 2012 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.
*/
#ifndef SHRPX_UPSTREAM_H
#define SHRPX_UPSTREAM_H
#include "shrpx.h"
#include <event2/bufferevent.h>
namespace shrpx {
class ClientHandler;
class Downstream;
class Upstream {
public:
virtual ~Upstream() {}
virtual int on_read() = 0;
virtual int on_event() = 0;
virtual bufferevent_data_cb get_downstream_readcb() = 0;
virtual bufferevent_data_cb get_downstream_writecb() = 0;
virtual bufferevent_event_cb get_downstream_eventcb() = 0;
virtual ClientHandler* get_client_handler() const = 0;
virtual int on_downstream_header_complete(Downstream *downstream) = 0;
virtual int on_downstream_body(Downstream *downstream,
const uint8_t *data, size_t len) = 0;
virtual int on_downstream_body_complete(Downstream *downstream) = 0;
};
} // namespace shrpx
#endif // SHRPX_UPSTREAM_H

15
examples/util.cc
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@ -169,6 +169,21 @@ bool strieq(const char *a, const char *b)
return !*a && !*b;
}
bool strifind(const char *a, const char *b)
{
if(!a || !b) {
return false;
}
for(size_t i = 0; a[i]; ++i) {
const char *ap = &a[i], *bp = b;
for(; *ap && *bp && lowcase(*ap) == lowcase(*bp); ++ap, ++bp);
if(!*bp) {
return true;
}
}
return false;
}
} // namespace util
} // namespace spdylay

2
examples/util.h
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@ -235,6 +235,8 @@ bool endsWith(const std::string& a, const std::string& b);
bool strieq(const char *a, const char *b);
bool strifind(const char *a, const char *b);
} // namespace util
} // namespace spdylay