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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <rango@swoole.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole_api.h"
#include "swoole_string.h"
#include "swoole_socket.h"
#include "swoole_reactor.h"
#include "swoole_protocol.h"
#include "swoole_proxy.h"
#define SW_HTTPS_PROXY_HANDSHAKE_RESPONSE "HTTP/1.1 200 Connection established"
namespace swoole {
namespace network {
class Client {
public:
int id = 0;
long timeout_id = 0; // timeout node id
int _sock_type = 0;
int _sock_domain = 0;
int _protocol = 0;
FdType fd_type;
bool active = false;
bool async = false;
bool keep = false;
bool destroyed = false;
bool http2 = false;
bool sleep_ = false;
bool wait_dns = false;
bool shutdow_rw = false;
bool shutdown_read = false;
bool shutdown_write = false;
bool remove_delay = false;
bool closed = false;
bool high_watermark = false;
bool async_connect = false;
/**
* one package: length check
*/
bool open_length_check = false;
bool open_eof_check = false;
Protocol protocol = {};
Socks5Proxy *socks5_proxy = nullptr;
HttpProxy *http_proxy = nullptr;
uint32_t reuse_count = 0;
const char *server_str = nullptr;
const char *server_host = nullptr;
int server_port = 0;
void *ptr = nullptr;
void *params = nullptr;
uint8_t server_strlen = 0;
double timeout = 0;
TimerNode *timer = nullptr;
/**
* signal interruption
*/
double interrupt_time = 0;
/**
* sendto, read only.
*/
Address server_addr = {};
/**
* recvfrom
*/
Address remote_addr = {};
Socket *socket;
void *object = nullptr;
String *buffer = nullptr;
uint32_t wait_length = 0;
uint32_t input_buffer_size = 0;
uint32_t buffer_high_watermark = 0;
uint32_t buffer_low_watermark = 0;
#ifdef SW_USE_OPENSSL
bool open_ssl = false;
bool ssl_wait_handshake = false;
std::shared_ptr<SSLContext> ssl_context = nullptr;
#endif
std::function<void (Client *cli)> onConnect = nullptr;
std::function<void (Client *cli)> onError = nullptr;
std::function<void (Client *cli, const char *, size_t)> onReceive = nullptr;
std::function<void (Client *cli)> onClose = nullptr;
std::function<void (Client *cli)> onBufferFull = nullptr;
std::function<void (Client *cli)> onBufferEmpty = nullptr;
int (*connect)(Client *cli, const char *host, int port, double _timeout, int sock_flag) = nullptr;
ssize_t (*send)(Client *cli, const char *data, size_t length, int flags) = nullptr;
int (*sendfile)(Client *cli, const char *filename, off_t offset, size_t length) = nullptr;
ssize_t (*recv)(Client *cli, char *data, size_t length, int flags) = nullptr;
static void init_reactor(Reactor *reactor);
Client(SocketType type, bool async);
~Client();
void set_http_proxy(const std::string &host, int port) {
http_proxy = new swoole::HttpProxy;
http_proxy->proxy_host = host;
http_proxy->proxy_port = port;
}
Socket *get_socket() {
return socket;
}
int sleep();
int wakeup();
int shutdown(int __how);
int close();
void destroy();
int socks5_handshake(const char *recv_data, size_t length);
#ifdef SW_USE_OPENSSL
int enable_ssl_encrypt();
#ifdef SW_SUPPORT_DTLS
void enable_dtls();
#endif
int ssl_handshake();
int ssl_verify(int allow_self_signed);
#endif
};
//----------------------------------------Stream---------------------------------------
class Stream {
public:
String *buffer = nullptr;
Client client;
bool connected = false;
bool cancel = false;
int errCode = 0;
void *private_data = nullptr;
void *private_data_2 = nullptr;
long private_data_fd = -1;
std::function<void(Stream *stream, const char *data, uint32_t length)> response = nullptr;
int send(const char *data, size_t length);
void set_max_length(uint32_t max_length);
inline static Stream *create(const char *dst_host, int dst_port, SocketType type) {
Stream *stream = new Stream(dst_host, dst_port, type);
if (!stream->connected) {
delete stream;
return nullptr;
} else {
return stream;
}
}
~Stream();
static ssize_t recv_blocking(Socket *sock, void *__buf, size_t __len);
static void set_protocol(Protocol *protocol);
private:
Stream(const char *dst_host, int dst_port, SocketType type);
};
//----------------------------------------Stream End------------------------------------
class SyncClient {
protected:
Client client;
bool connected = false;
bool created;
bool async = false;
SocketType type;
public:
SyncClient(SocketType _type, bool _async = false) : client(_type, _async), async(_async), type(_type) {
created = client.socket != nullptr;
}
bool connect(const char *host, int port, double timeout = -1) {
if (connected || !created) {
return false;
}
if (client.connect(&client, host, port, timeout, client.socket->is_dgram()) < 0) {
return false;
}
connected = true;
return true;
}
#ifdef SW_USE_OPENSSL
bool enable_ssl_encrypt() {
if (client.enable_ssl_encrypt() < 0 || client.ssl_handshake() < 0) {
return false;
} else {
return true;
}
}
#endif
ssize_t send(const std::string &data) {
return client.send(&client, data.c_str(), data.length(), 0);
}
ssize_t send(const char *buf, size_t len) {
return client.send(&client, buf, len, 0);
}
ssize_t recv(char *buf, size_t len) {
return client.recv(&client, buf, len, 0);
}
bool close() {
if (!created || client.closed) {
return false;
}
client.close();
created = false;
return true;
}
virtual ~SyncClient() {
if (created) {
close();
}
}
};
class AsyncClient : public SyncClient {
protected:
std::function<void(AsyncClient *)> _onConnect = nullptr;
std::function<void(AsyncClient *)> _onError = nullptr;
std::function<void(AsyncClient *)> _onClose = nullptr;
std::function<void(AsyncClient *, const char *data, size_t length)> _onReceive = nullptr;
public:
AsyncClient(SocketType _type) : SyncClient(_type, true) {}
bool connect(const char *host, int port, double timeout = -1) {
client.object = this;
client.onConnect = [](Client *cli) {
AsyncClient *ac = (AsyncClient *) cli->object;
ac->_onConnect(ac);
};
client.onError = [](Client *cli) {
AsyncClient *ac = (AsyncClient *) cli->object;
ac->_onError(ac);
};
client.onClose = [](Client *cli) {
AsyncClient *ac = (AsyncClient *) cli->object;
ac->_onClose(ac);
};
client.onReceive = [](Client *cli, const char *data, size_t length) {
AsyncClient *ac = (AsyncClient *) cli->object;
ac->_onReceive(ac, data, length);
};
return SyncClient::connect(host, port, timeout);
}
void on_connect(std::function<void(AsyncClient *)> fn) {
_onConnect = fn;
}
void on_error(std::function<void(AsyncClient *)> fn) {
_onError = fn;
}
void on_close(std::function<void(AsyncClient *)> fn) {
_onClose = fn;
}
void on_receive(std::function<void(AsyncClient *, const char *data, size_t length)> fn) {
_onReceive = fn;
}
};
} // namespace network
} // namespace swoole
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