premiere-libtorrent/test/setup_transfer.cpp

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/*
Copyright (c) 2008, Arvid Norberg
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the distribution.
* Neither the name of the author nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
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#include <fstream>
#include "libtorrent/session.hpp"
#include "libtorrent/hasher.hpp"
#include "libtorrent/http_parser.hpp"
#include "libtorrent/thread.hpp"
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#include "libtorrent/thread.hpp"
#include <boost/tuple/tuple.hpp>
#include <boost/bind.hpp>
#include "test.hpp"
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#include "libtorrent/assert.hpp"
#include "libtorrent/alert_types.hpp"
#include "libtorrent/create_torrent.hpp"
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#include "libtorrent/socket_io.hpp" // print_endpoint
#include "libtorrent/socket_type.hpp"
#include "libtorrent/instantiate_connection.hpp"
#ifdef TORRENT_USE_OPENSSL
#include <boost/asio/ssl/stream.hpp>
#include <boost/asio/ssl/context.hpp>
#endif
using namespace libtorrent;
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bool tests_failure = false;
void report_failure(char const* err, char const* file, int line)
{
#ifdef TORRENT_WINDOWS
HANDLE console = CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE, 0, 0, CONSOLE_TEXTMODE_BUFFER, 0);
SetConsoleTextAttribute(console, FOREGROUND_RED);
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fprintf(stderr, "\n**** %s:%d \"%s\" ****\n\n", file, line, err);
CloseHandle(console);
#else
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fprintf(stderr, "\033[31m %s:%d \"%s\"\033[0m\n", file, line, err);
#endif
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tests_failure = true;
}
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bool print_alerts(libtorrent::session& ses, char const* name
, bool allow_disconnects, bool allow_no_torrents, bool allow_failed_fastresume
, bool (*predicate)(libtorrent::alert*))
{
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bool ret = false;
std::vector<torrent_handle> handles = ses.get_torrents();
TEST_CHECK(!handles.empty() || allow_no_torrents);
torrent_handle h;
if (!handles.empty()) h = handles[0];
std::auto_ptr<alert> a;
a = ses.pop_alert();
while (a.get())
{
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if (predicate && predicate(a.get())) ret = true;
if (peer_disconnected_alert* p = alert_cast<peer_disconnected_alert>(a.get()))
{
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fprintf(stderr, "%s(%s): %s\n", name, print_endpoint(p->ip).c_str(), p->message().c_str());
}
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else if (a->message() != "block downloading"
&& a->message() != "block finished"
&& a->message() != "piece finished")
{
fprintf(stderr, "%s: %s\n", name, a->message().c_str());
}
TEST_CHECK(alert_cast<fastresume_rejected_alert>(a.get()) == 0 || allow_failed_fastresume);
peer_error_alert* pea = alert_cast<peer_error_alert>(a.get());
TEST_CHECK(pea == 0
|| (!handles.empty() && h.status().is_seeding)
|| pea->error.message() == "connecting to peer"
|| pea->error.message() == "closing connection to ourself"
|| pea->error.message() == "duplicate connection"
|| pea->error.message() == "duplicate peer-id"
|| pea->error.message() == "upload to upload connection"
|| pea->error.message() == "stopping torrent"
|| (allow_disconnects && pea->error.message() == "Broken pipe")
|| (allow_disconnects && pea->error.message() == "Connection reset by peer")
|| (allow_disconnects && pea->error.message() == "End of file."));
a = ses.pop_alert();
}
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return ret;
}
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void test_sleep(int millisec)
{
libtorrent::sleep(millisec);
}
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void stop_proxy(int port)
{
char buf[100];
snprintf(buf, sizeof(buf), "delegated -P%d -Fkill", port);
system(buf);
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}
void start_proxy(int port, int proxy_type)
{
using namespace libtorrent;
stop_proxy(port);
char const* type = "";
char const* auth = "";
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switch (proxy_type)
{
case proxy_settings::socks4:
type = "socks4";
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break;
case proxy_settings::socks5:
type = "socks5";
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break;
case proxy_settings::socks5_pw:
type = "socks5";
auth = "AUTHORIZER=-list{testuser:testpass}";
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break;
case proxy_settings::http:
type = "http";
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break;
case proxy_settings::http_pw:
type = "http";
auth = "AUTHORIZER=-list{testuser:testpass}";
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break;
}
char buf[512];
// we need to echo n since dg will ask us to configure it
snprintf(buf, sizeof(buf), "echo n | delegated -P%d ADMIN=test@test.com "
"PERMIT=\"*:*:localhost\" REMITTABLE=+,https RELAY=proxy,delegate "
"SERVER=%s %s"
, port, type, auth);
fprintf(stderr, "starting delegated proxy...\n");
system(buf);
fprintf(stderr, "launched\n");
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// apparently delegate takes a while to open its listen port
test_sleep(1000);
}
using namespace libtorrent;
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template <class T>
boost::intrusive_ptr<T> clone_ptr(boost::intrusive_ptr<T> const& ptr)
{
return boost::intrusive_ptr<T>(new T(*ptr));
}
boost::intrusive_ptr<torrent_info> create_torrent(std::ostream* file, int piece_size
, int num_pieces, bool add_tracker)
{
char const* tracker_url = "http://non-existent-name.com/announce";
// excercise the path when encountering invalid urls
char const* invalid_tracker_url = "http:";
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char const* invalid_tracker_protocol = "foo://non/existent-name.com/announce";
file_storage fs;
int total_size = piece_size * num_pieces;
fs.add_file("temporary", total_size);
libtorrent::create_torrent t(fs, piece_size);
if (add_tracker)
{
t.add_tracker(tracker_url);
t.add_tracker(invalid_tracker_url);
t.add_tracker(invalid_tracker_protocol);
}
std::vector<char> piece(piece_size);
for (int i = 0; i < int(piece.size()); ++i)
piece[i] = (i % 26) + 'A';
// calculate the hash for all pieces
int num = t.num_pieces();
sha1_hash ph = hasher(&piece[0], piece.size()).final();
for (int i = 0; i < num; ++i)
t.set_hash(i, ph);
if (file)
{
while (total_size > 0)
{
file->write(&piece[0], (std::min)(int(piece.size()), total_size));
total_size -= piece.size();
}
}
std::vector<char> tmp;
std::back_insert_iterator<std::vector<char> > out(tmp);
bencode(out, t.generate());
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error_code ec;
return boost::intrusive_ptr<torrent_info>(new torrent_info(
&tmp[0], tmp.size(), ec));
}
boost::tuple<torrent_handle, torrent_handle, torrent_handle>
setup_transfer(session* ses1, session* ses2, session* ses3
, bool clear_files, bool use_metadata_transfer, bool connect_peers
, std::string suffix, int piece_size
, boost::intrusive_ptr<torrent_info>* torrent, bool super_seeding
, add_torrent_params const* p)
{
assert(ses1);
assert(ses2);
session_settings sess_set = ses1->settings();
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sess_set.allow_multiple_connections_per_ip = true;
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sess_set.ignore_limits_on_local_network = false;
ses1->set_settings(sess_set);
ses2->set_settings(sess_set);
if (ses3) ses3->set_settings(sess_set);
ses1->set_alert_mask(~alert::progress_notification);
ses2->set_alert_mask(~alert::progress_notification);
if (ses3) ses3->set_alert_mask(~alert::progress_notification);
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std::srand(time(0));
peer_id pid;
std::generate(&pid[0], &pid[0] + 20, std::rand);
ses1->set_peer_id(pid);
std::generate(&pid[0], &pid[0] + 20, std::rand);
ses2->set_peer_id(pid);
assert(ses1->id() != ses2->id());
if (ses3)
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{
std::generate(&pid[0], &pid[0] + 20, std::rand);
ses3->set_peer_id(pid);
assert(ses3->id() != ses2->id());
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}
boost::intrusive_ptr<torrent_info> t;
if (torrent == 0)
{
error_code ec;
create_directory("./tmp1" + suffix, ec);
std::ofstream file(("./tmp1" + suffix + "/temporary").c_str());
t = ::create_torrent(&file, piece_size, 19, true);
file.close();
if (clear_files)
{
remove_all("./tmp2" + suffix + "/temporary", ec);
remove_all("./tmp3" + suffix + "/temporary", ec);
}
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char ih_hex[41];
to_hex((char const*)&t->info_hash()[0], 20, ih_hex);
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fprintf(stderr, "generated torrent: %s ./tmp1%s/temporary\n", ih_hex, suffix.c_str());
}
else
{
t = *torrent;
}
// they should not use the same save dir, because the
// file pool will complain if two torrents are trying to
// use the same files
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sha1_hash info_hash = t->info_hash();
add_torrent_params param;
if (p) param = *p;
param.ti = clone_ptr(t);
param.save_path = "./tmp1" + suffix;
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error_code ec;
torrent_handle tor1 = ses1->add_torrent(param, ec);
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tor1.super_seeding(super_seeding);
TEST_CHECK(!ses1->get_torrents().empty());
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torrent_handle tor2;
torrent_handle tor3;
// the downloader cannot use seed_mode
param.seed_mode = false;
if (ses3)
{
param.ti = clone_ptr(t);
param.save_path = "./tmp3" + suffix;
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tor3 = ses3->add_torrent(param, ec);
TEST_CHECK(!ses3->get_torrents().empty());
}
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if (use_metadata_transfer)
{
param.ti = 0;
param.info_hash = t->info_hash();
}
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else
{
param.ti = clone_ptr(t);
}
param.save_path = "./tmp2" + suffix;
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tor2 = ses2->add_torrent(param, ec);
TEST_CHECK(!ses2->get_torrents().empty());
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assert(ses1->get_torrents().size() == 1);
assert(ses2->get_torrents().size() == 1);
test_sleep(100);
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if (connect_peers)
{
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fprintf(stderr, "connecting peer\n");
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error_code ec;
tor1.connect_peer(tcp::endpoint(address::from_string("127.0.0.1", ec)
, ses2->listen_port()));
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if (ses3)
{
// give the other peers some time to get an initial
// set of pieces before they start sharing with each-other
tor3.connect_peer(tcp::endpoint(
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address::from_string("127.0.0.1", ec)
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, ses2->listen_port()));
tor3.connect_peer(tcp::endpoint(
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address::from_string("127.0.0.1", ec)
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, ses1->listen_port()));
}
}
return boost::make_tuple(tor1, tor2, tor3);
}
boost::asio::io_service* tracker_ios = 0;
boost::shared_ptr<libtorrent::thread> tracker_server;
libtorrent::mutex tracker_lock;
libtorrent::event tracker_initialized;
bool udp_failed = false;
void stop_tracker()
{
if (tracker_server && tracker_ios)
{
tracker_ios->stop();
tracker_server->join();
tracker_server.reset();
tracker_ios = 0;
}
}
void udp_tracker_thread(int* port);
int start_tracker()
{
stop_tracker();
{
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.clear(l);
}
int port = 0;
tracker_server.reset(new libtorrent::thread(boost::bind(&udp_tracker_thread, &port)));
{
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.wait(l);
}
test_sleep(100);
return port;
}
void on_udp_receive(error_code const& ec, size_t bytes_transferred, udp::endpoint const* from, char* buffer, udp::socket* sock)
{
if (ec)
{
fprintf(stderr, "UDP tracker, read failed: %s\n", ec.message().c_str());
return;
}
udp_failed = false;
if (bytes_transferred < 16)
{
fprintf(stderr, "UDP message too short\n");
return;
}
char* ptr = buffer;
detail::read_uint64(ptr);
boost::uint32_t action = detail::read_uint32(ptr);
boost::uint32_t transaction_id = detail::read_uint32(ptr);
error_code e;
switch (action)
{
case 0: // connect
ptr = buffer;
detail::write_uint32(0, ptr); // action = connect
detail::write_uint32(transaction_id, ptr); // transaction_id
detail::write_uint64(10, ptr); // connection_id
sock->send_to(asio::buffer(buffer, 16), *from, 0, e);
break;
case 1: // announce
ptr = buffer;
detail::write_uint32(1, ptr); // action = announce
detail::write_uint32(transaction_id, ptr); // transaction_id
detail::write_uint32(1800, ptr); // interval
detail::write_uint32(1, ptr); // incomplete
detail::write_uint32(1, ptr); // complete
// 0 peers
sock->send_to(asio::buffer(buffer, 20), *from, 0, e);
break;
default: // ignore scrapes
break;
}
}
void udp_tracker_thread(int* port)
{
io_service ios;
udp::socket acceptor(ios);
error_code ec;
acceptor.open(udp::v4(), ec);
if (ec)
{
fprintf(stderr, "Error opening listen UDP socket: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.signal(l);
return;
}
acceptor.bind(udp::endpoint(address_v4::any(), 0), ec);
if (ec)
{
fprintf(stderr, "Error binding UDP socket to port 0: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.signal(l);
return;
}
*port = acceptor.local_endpoint().port();
tracker_ios = &ios;
fprintf(stderr, "UDP tracker initialized on port %d\n", *port);
{
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.signal(l);
}
char buffer[2000];
for (;;)
{
error_code ec;
udp::endpoint from;
udp_failed = true;
acceptor.async_receive_from(
asio::buffer(buffer, sizeof(buffer)), from, boost::bind(
&on_udp_receive, _1, _2, &from, &buffer[0], &acceptor));
ios.run_one(ec);
if (udp_failed) return;
if (ec)
{
fprintf(stderr, "Error receiving on UDP socket: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(tracker_lock);
tracker_initialized.signal(l);
return;
}
ios.reset();
}
}
boost::asio::io_service* web_ios = 0;
boost::shared_ptr<libtorrent::thread> web_server;
libtorrent::mutex web_lock;
libtorrent::event web_initialized;
void stop_web_server()
{
if (web_server && web_ios)
{
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web_ios->post(boost::bind(&io_service::stop, web_ios));
web_server->join();
web_server.reset();
web_ios = 0;
}
}
void web_server_thread(int* port, bool ssl, bool chunked);
int start_web_server(bool ssl, bool chunked_encoding)
{
stop_web_server();
{
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.clear(l);
}
if (ssl)
{
system("echo . > tmp");
system("echo test province >>tmp");
system("echo test city >> tmp");
system("echo test company >> tmp");
system("echo test department >> tmp");
system("echo tester >> tmp");
system("echo test@test.com >> tmp");
system("openssl req -new -x509 -keyout server.pem -out server.pem "
"-days 365 -nodes <tmp");
}
int port = 0;
web_server.reset(new libtorrent::thread(boost::bind(
&web_server_thread, &port, ssl, chunked_encoding)));
{
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.wait(l);
}
// create this directory so that the path
// "relative/../test_file" can resolve
error_code ec;
create_directory("relative", ec);
test_sleep(100);
return port;
}
void send_response(socket_type& s, error_code& ec
, int code, char const* status_message, char const** extra_header
, int len)
{
char msg[600];
int pkt_len = snprintf(msg, sizeof(msg), "HTTP/1.0 %d %s\r\n"
"content-length: %d\r\n"
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"%s"
"%s"
"%s"
"%s"
"\r\n"
, code, status_message, len
, extra_header[0]
, extra_header[1]
, extra_header[2]
, extra_header[3]);
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// fprintf(stderr, ">> %s\n", msg);
write(s, boost::asio::buffer(msg, pkt_len), boost::asio::transfer_all(), ec);
}
bool accept_done = false;
void on_accept(error_code const& ec)
{
if (ec)
{
fprintf(stderr, "Error accepting socket: %s\n", ec.message().c_str());
accept_done = false;
}
else
{
// fprintf(stderr, "accepting connection\n");
accept_done = true;
}
}
void send_content(socket_type& s, char const* file, int size, bool chunked)
{
error_code ec;
if (chunked)
{
int chunk_size = 13;
char head[20];
std::vector<boost::asio::const_buffer> bufs(3);
bufs[2] = asio::const_buffer("\r\n", 2);
while (chunk_size > 0)
{
chunk_size = std::min(chunk_size, size);
int len = snprintf(head, sizeof(head), "%x\r\n", chunk_size);
bufs[0] = asio::const_buffer(head, len);
if (chunk_size == 0)
{
// terminate
bufs.erase(bufs.begin()+1);
}
else
{
bufs[1] = asio::const_buffer(file, chunk_size);
}
write(s, bufs, boost::asio::transfer_all(), ec);
size -= chunk_size;
file += chunk_size;
chunk_size *= 2;
}
}
else
{
write(s, boost::asio::buffer(file, size), boost::asio::transfer_all(), ec);
}
}
void web_server_thread(int* port, bool ssl, bool chunked)
{
io_service ios;
socket_acceptor acceptor(ios);
error_code ec;
acceptor.open(tcp::v4(), ec);
if (ec)
{
fprintf(stderr, "Error opening listen socket: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.signal(l);
return;
}
acceptor.set_option(socket_acceptor::reuse_address(true), ec);
if (ec)
{
fprintf(stderr, "Error setting listen socket to reuse addr: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.signal(l);
return;
}
acceptor.bind(tcp::endpoint(address_v4::any(), 0), ec);
if (ec)
{
fprintf(stderr, "Error binding listen socket to port 0: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.signal(l);
return;
}
*port = acceptor.local_endpoint().port();
acceptor.listen(10, ec);
if (ec)
{
fprintf(stderr, "Error listening on socket: %s\n", ec.message().c_str());
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.signal(l);
return;
}
web_ios = &ios;
fprintf(stderr, "web server initialized on port %d\n", *port);
{
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libtorrent::mutex::scoped_lock l(web_lock);
web_initialized.signal(l);
}
char buf[10000];
int len = 0;
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int offset = 0;
bool connection_close = false;
socket_type s(ios);
void* ctx = 0;
#ifdef TORRENT_USE_OPENSSL
boost::asio::ssl::context ssl_ctx(ios, boost::asio::ssl::context::sslv2_server);
ssl_ctx.use_certificate_chain_file("server.pem");
ssl_ctx.use_private_key_file("server.pem", asio::ssl::context::pem);
ssl_ctx.set_verify_mode(boost::asio::ssl::context::verify_none);
if (ssl) ctx = &ssl_ctx;
#endif
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proxy_settings p;
instantiate_connection(ios, p, s, ctx);
for (;;)
{
if (connection_close)
{
// fprintf(stderr, "closing connection\n");
s.close(ec);
connection_close = false;
}
if (!s.is_open())
{
len = 0;
offset = 0;
error_code ec;
stream_socket* sock;
#ifdef TORRENT_USE_OPENSSL
if (ssl) sock = &s.get<ssl_stream<stream_socket> >()->next_layer().next_layer();
else
#endif
sock = s.get<stream_socket>();
accept_done = false;
acceptor.async_accept(*sock, &on_accept);
ios.reset();
ios.run_one();
if (!accept_done)
{
fprintf(stderr, "accept failed: %s\n", ec.message().c_str());
return;
}
// fprintf(stderr, "accepting incoming connection\n");
if (!s.is_open()) continue;
#ifdef TORRENT_USE_OPENSSL
if (ssl)
s.get<ssl_stream<stream_socket> >()->next_layer().handshake(asio::ssl::stream_base::server);
#endif
}
http_parser p;
bool failed = false;
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do
{
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p.reset();
bool error = false;
p.incoming(buffer::const_interval(buf + offset, buf + len), error);
char const* extra_header[4] = {"","","",""};
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TEST_CHECK(error == false);
if (error)
{
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fprintf(stderr, "parse failed\n");
failed = true;
break;
}
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while (!p.finished())
{
TORRENT_ASSERT(len < sizeof(buf));
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size_t received = s.read_some(boost::asio::buffer(&buf[len]
, sizeof(buf) - len), ec);
// fprintf(stderr, "read: %d\n", int(received));
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if (ec || received <= 0)
{
fprintf(stderr, "read failed: %s received: %d\n", ec.message().c_str(), int(received));
failed = true;
break;
}
len += received;
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p.incoming(buffer::const_interval(buf + offset, buf + len), error);
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TEST_CHECK(error == false);
if (error)
{
fprintf(stderr, "parse failed\n");
failed = true;
break;
}
}
std::string connection = p.header("connection");
std::string via = p.header("via");
// The delegate proxy doesn't say connection close, but it expects it to be closed
// the Via: header is an indicator of delegate making the request
if (connection == "close" || !via.empty())
{
// fprintf(stderr, "got connection close\n");
connection_close = true;
}
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// fprintf(stderr, "%s", std::string(buf + offset, p.body_start()).c_str());
if (failed)
{
fprintf(stderr, "connection failed\n");
connection_close = true;
break;
}
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offset += p.body_start() + p.content_length();
// fprintf(stderr, "offset: %d len: %d\n", offset, len);
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if (p.method() != "get" && p.method() != "post")
{
fprintf(stderr, "incorrect method: %s\n", p.method().c_str());
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break;
}
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std::string path = p.path();
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if (path == "/redirect")
{
extra_header[0] = "Location: /test_file\r\n";
send_response(s, ec, 301, "Moved Permanently", extra_header, 0);
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break;
}
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if (path == "/infinite_redirect")
{
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extra_header[0] = "Location: /infinite_redirect\r\n";
send_response(s, ec, 301, "Moved Permanently", extra_header, 0);
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break;
}
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if (path == "/relative/redirect")
{
extra_header[0] = "Location: ../test_file\r\n";
send_response(s, ec, 301, "Moved Permanently", extra_header, 0);
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break;
}
if (path.substr(0, 9) == "/announce")
{
entry announce;
announce["interval"] = 1800;
announce["complete"] = 1;
announce["incomplete"] = 1;
announce["peers"].string();
std::vector<char> buf;
bencode(std::back_inserter(buf), announce);
send_response(s, ec, 200, "OK", extra_header, buf.size());
write(s, boost::asio::buffer(&buf[0], buf.size()), boost::asio::transfer_all(), ec);
}
if (path.substr(0, 6) == "/seed?")
{
char const* piece = strstr(path.c_str(), "&piece=");
if (piece == 0)
{
fprintf(stderr, "invalid web seed request: %s\n", path.c_str());
break;
}
boost::uint64_t idx = atoi(piece + 7);
char const* range = strstr(path.c_str(), "&ranges=");
int range_end = 0;
int range_start = 0;
if (range)
{
range_start = atoi(range + 8);
range = strchr(range, '-');
if (range == 0)
{
fprintf(stderr, "invalid web seed request: %s\n", path.c_str());
break;
}
range_end = atoi(range + 1);
}
else
{
range_start = 0;
// assume piece size of 64kiB
range_end = 64*1024-1;
}
int size = range_end - range_start + 1;
boost::uint64_t off = idx * 64 * 1024 + range_start;
std::vector<char> file_buf;
int res = load_file("./tmp1_web_seed/seed", file_buf);
error_code ec;
if (res == -1 || file_buf.empty())
{
send_response(s, ec, 404, "Not Found", extra_header, 0);
continue;
}
send_response(s, ec, 200, "OK", extra_header, size);
// fprintf(stderr, "sending %d bytes of payload [%d, %d)\n"
// , size, int(off), int(off + size));
write(s, boost::asio::buffer(&file_buf[0] + off, size)
, boost::asio::transfer_all(), ec);
memmove(buf, buf + offset, len - offset);
len -= offset;
offset = 0;
continue;
}
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// fprintf(stderr, ">> serving file %s\n", path.c_str());
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std::vector<char> file_buf;
// remove the / from the path
path = path.substr(1);
int res = load_file(path, file_buf);
if (res == -1)
{
send_response(s, ec, 404, "Not Found", extra_header, 0);
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continue;
}
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if (res != 0)
{
// this means the file was either too big or couldn't be read
send_response(s, ec, 503, "Internal Error", extra_header, 0);
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continue;
}
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// serve file
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if (extension(path) == ".gz")
{
extra_header[0] = "Content-Encoding: gzip\r\n";
}
if (chunked)
{
extra_header[2] = "Transfer-Encoding: chunked\r\n";
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}
if (!p.header("range").empty())
{
std::string range = p.header("range");
int start, end;
sscanf(range.c_str(), "bytes=%d-%d", &start, &end);
char eh[400];
snprintf(eh, sizeof(eh), "Content-Range: bytes %d-%d\r\n", start, end);
extra_header[1] = eh;
send_response(s, ec, 206, "Partial", extra_header, end - start + 1);
if (!file_buf.empty())
{
send_content(s, &file_buf[0] + start, end - start + 1, chunked);
}
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// fprintf(stderr, "send %d bytes of payload\n", end - start + 1);
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}
else
{
send_response(s, ec, 200, "OK", extra_header, file_buf.size());
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if (!file_buf.empty())
send_content(s, &file_buf[0], file_buf.size(), chunked);
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}
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// fprintf(stderr, "%d bytes left in receive buffer. offset: %d\n", len - offset, offset);
memmove(buf, buf + offset, len - offset);
len -= offset;
offset = 0;
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} while (offset < len);
}
fprintf(stderr, "exiting web server thread\n");
}