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websocketclient2.cpp
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websocketclient2.cpp
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// websocketclient2.cpp ---
//
// Author: liuguangzhao
// Copyright (C) 2007-2012 liuguangzhao@users.sf.net
// URL:
// Created: 2011-05-31 17:31:18 +0000
// Version: $Id: websocketclient2.cpp 995 2011-09-16 09:51:17Z drswinghead $
//
#include "simplelog.h"
#include "websocketclient2.h"
#include "intermessage.h"
///////////////////////////////////
/////////////////////////////////
////////////////////////////////////
struct libwebsocket_extension libwebsocket_vopp_client_extensions[] = {
{ /* terminator */
NULL, NULL, 0
}
};
struct client_session_user_data {
struct libwebsocket *wsi;
int seq;
char full_message[5120];
PackageCombiner *pc;
};
/* list of supported protocols and callbacks */
static struct libwebsocket_protocols vopp_client_protocols[] = {
{
"vopp",
&WebSocketClient2::lws_callback_vopp,
sizeof(struct client_session_user_data),
},
{ /* end of list */
NULL,
NULL,
0
}
};
WebSocketClient2::WebSocketClient2(QString uri)
: QThread(0)
{
this->m_uri = uri;
this->quit_cli_loop = false;
this->real_connect_now = false;
this->m_lws_ctx = NULL;
this->m_wsi = NULL;
QObject::connect(this, SIGNAL(started()), this, SLOT(on_myself_started()));
}
WebSocketClient2::~WebSocketClient2()
{
qLogx()<<"";
}
bool WebSocketClient2::connectToServer(QString uri)
{
if (this->m_uri == uri && uri.isEmpty()) {
qLogx()<<"Empty connect uri.";
return false;
}
if (!uri.isEmpty()) this->m_uri = uri;
this->start();
return true;
}
bool WebSocketClient2::connectToServerImpl(QString uri)
{
unsigned short ctx_port = CONTEXT_PORT_NO_LISTEN;
Q_ASSERT(this->m_lws_ctx == NULL);
const char *cert_path =
// LOCAL_RESOURCE_PATH"/libwebsockets-test-server.pem";
"./seckey/cacert.pem";
const char *key_path =
// LOCAL_RESOURCE_PATH"/libwebsockets-test-server.key.pem";
"./seckey/privkey.pem";
// memset(this->client_protocols, 0, sizeof(struct libwebsocket_protocols)*2);
// VC10不支持
// this->client_protocols[0] =
// {
// "wso",
// callback_lws_client_wso,
// sizeof(struct client_session_user_data),
// };
this->m_lws_ctx = libwebsocket_create_context_ex(ctx_port, NULL, vopp_client_protocols,
libwebsocket_vopp_client_extensions,
cert_path, key_path, -1, -1, 0, this);
// this->m_lws_ctx = libwebsocket_create_context_ex(ctx_port, NULL, vopp_client_protocols,
// libwebsocket_vopp_client_extensions, NULL, NULL, -1, -1, 0, this);
if (this->m_lws_ctx == NULL) {
}
qLogx()<<"wsc ctx init done."<<this->m_lws_ctx;
return true;
}
bool WebSocketClient2::on_wsctx_inited()
{
QUrl mu(this->m_uri);
qLogx()<<mu;
unsigned short port = mu.port(18080);
QString host = mu.host();
QString path = mu.path();
// 默认为1,最安全
int ssl_mode = 1; // 0,ws://, 1,wss://encrypt, 2,wss://self signed
if (mu.scheme().toLower() == "ws") {
ssl_mode = 0;
} else if (mu.scheme().toLower() == "wss") {
ssl_mode = 2;
} else {
Q_ASSERT(1==2);
}
int conn_retry = 3;
while (conn_retry -- > 0) {
// 需要关注测试一下,这个调用是否是阻塞式的,如果是非阻塞式,则可以这么用
// 否则,还需要考虑其他解决方式。
qLogx()<<this->m_uri<<host<<path<<port;
qLogx()<<"Before libwss clint connect..."<<QDateTime::currentDateTime();
this->m_wsi = libwebsocket_client_connect(this->m_lws_ctx, host.toAscii().data(), port, ssl_mode,
path.toAscii().data(),
host.toAscii().data(), host.toAscii().data(),
vopp_client_protocols[0].name, -1);
// this->m_wsi = libwebsocket_client_connect(this->m_lws_ctx, host.toAscii().data(), port, 0,
// path.toAscii().data(),
// host.toAscii().data(), host.toAscii().data(),
// vopp_client_protocols[0].name, -1);
if (this->m_wsi == NULL) {
qLogx()<<"libwebsocket dumb connect failed.";
return false;
}
// here the conn state is 4, but when run to CALLBACK_ESTABLISH, the state will be 3 ok
qLogx()<<"After libwss client connect..."<<QDateTime::currentDateTime()
<<libwebsockets_remaining_packet_payload(this->m_wsi)
<<libwebsocket_get_socket_fd(this->m_wsi)
<<libwebsocket_get_connect_state(this->m_wsi);
qLogx()<<"client wsi:"<<this->m_wsi;
if (libwebsocket_client_is_connected(this->m_wsi)) {
break;
} else {
break;
this->m_wsi = NULL;
qLogx()<<"Invalid client wsi state, retry.. "<<conn_retry;
if (conn_retry == 0) {
Q_ASSERT(1==2);
return false;
}
}
}
return true;
}
bool WebSocketClient2::on_wsc_service_loop()
{
int iret = 0;
static int tcnt = 0;
qLogx()<<"ws client serviceing...";
iret = libwebsocket_service(this->m_lws_ctx, 2000);
qLogx()<<iret;
// qDebug()<<__FILE__<<__LINE__<<__FUNCTION__;
if (iret == 0) {
// ok, success
} else {
// listen socket deak
qDebug()<<__FILE__<<__LINE__<<__FUNCTION__<<"Listen socket maybe dead."
<<"Need restart this server.";
}
if (this->m_wsi != NULL) {
// QString a = QString("[abcdddddd %1]").arg(++tcnt);
// qLogx()<<"Sending :"<<a;
// this->sendMessage(a.toAscii());
}
return true;
}
bool WebSocketClient2::disconnectFromServer()
{
libwebsocket_close_and_free_session(this->m_lws_ctx,
this->m_wsi, LWS_CLOSE_STATUS_GOINGAWAY);
this->quit_cli_loop = true;
this->m_wsi = NULL;
libwebsocket_context_destroy(this->m_lws_ctx);
this->m_lws_ctx = NULL;
return true;
}
bool WebSocketClient2::sendMessage(QByteArray msg)
{
int wlen = 0;
char tbuf[512] = {0};
if (this->m_wsi == NULL) {
//
qLogx()<<"client not connect.";
return false;
}
// libwebsocket_write(wsi,
// &buf[LWS_SEND_BUFFER_PRE_PADDING], l, LWS_WRITE_TEXT);
memcpy(&tbuf[LWS_SEND_BUFFER_PRE_PADDING], msg.data(), msg.length());
wlen = libwebsocket_write(this->m_wsi, (unsigned char*)&tbuf[LWS_SEND_BUFFER_PRE_PADDING],
msg.length(), LWS_WRITE_TEXT);
// wlen = libwebsocket_write(this->m_wsi, (unsigned char*)msg.data(), msg.length(), LWS_WRITE_TEXT);
// wlen = libwebsocket_write(wsi, (unsigned char*)buf, len, LWS_WRITE_TEXT);
qLogx()<<msg.length()<<wlen<<msg;
return true;
}
bool WebSocketClient2::sendMessage(std::string msg)
{
int wlen = 0;
char tbuf[512] = {0};
char tbuf2[512] = {0};
if (this->m_wsi == NULL) {
//
qLogx()<<"client not connect.";
return false;
}
std::string tstr;
PackageSplitter ps(msg);
while (ps.hasNextFragment()) {
tstr = ps.nextFragment();
memset(tbuf, 0, sizeof(tbuf));
strcpy(&tbuf[LWS_SEND_BUFFER_PRE_PADDING], tstr.c_str());
wlen = libwebsocket_write(this->m_wsi, (unsigned char*)&tbuf[LWS_SEND_BUFFER_PRE_PADDING],
tstr.length(), LWS_WRITE_TEXT);
if (wlen == 0) {
// success
} else {
// error
}
}
// libwebsocket_write(wsi,
// &buf[LWS_SEND_BUFFER_PRE_PADDING], l, LWS_WRITE_TEXT);
// strcpy(&tbuf[LWS_SEND_BUFFER_PRE_PADDING], msg.c_str());
// strcpy(&tbuf[LWS_SEND_BUFFER_PRE_PADDING],
// "abcdefgdddddddd112132324324i3423423423432432423432kdsjfewiafjeafijaweofjaioewfjaweifjawofjeaioejfiajfadffffffffffffffffffffo12");
// qLogx()<<msg.length()<<wlen<<msg.c_str()<<QString::fromAscii((char*)(&tbuf[LWS_SEND_BUFFER_PRE_PADDING]), msg.length());
// wlen = libwebsocket_write(this->m_wsi, (unsigned char*)&tbuf[LWS_SEND_BUFFER_PRE_PADDING],
// strlen(&tbuf[LWS_SEND_BUFFER_PRE_PADDING]), LWS_WRITE_TEXT);
// strncpy(tbuf2, &tbuf[LWS_SEND_BUFFER_PRE_PADDING], msg.length());
// wlen = libwebsocket_write(this->m_wsi, (unsigned char*)msg.data(), msg.length(), LWS_WRITE_TEXT);
// wlen = libwebsocket_write(wsi, (unsigned char*)buf, len, LWS_WRITE_TEXT);
// qLogx()<<msg.length()<<wlen<<msg.c_str()<<QString(&tbuf[LWS_SEND_BUFFER_PRE_PADDING])
// <<strlen(&tbuf[LWS_SEND_BUFFER_PRE_PADDING]);
// <<QString::fromAscii((char*)(&tbuf[LWS_SEND_BUFFER_PRE_PADDING]), msg.length());
return true;
}
bool WebSocketClient2::isConnected()
{
return (this->m_wsi != NULL && libwebsocket_client_is_connected(this->m_wsi));
}
bool WebSocketClient2::isClosed()
{
return true;
}
int WebSocketClient2::lws_new_connection_established(libwebsocket *wsi)
{
//fprintf(stderr, "c_path: %s\n", wsi->c_path);
qLogx()<<wsi<<libwebsocket_get_cpath(wsi).c_str();
std::string req_path;
req_path = libwebsocket_get_request_path(wsi);
emit this->onConnected(QString(req_path.c_str()));
return 0;
}
int WebSocketClient2::lws_connection_closed(libwebsocket *wsi)
{
qLogx()<<"backed ws close event:"<<wsi;
emit this->onDisconnected();
return 0;
}
int WebSocketClient2::lws_ws_message_ready(libwebsocket *wsi, char *msg, size_t len)
{
int cseq = 0;
QByteArray nmsg = QByteArray(msg, len);
qLogx()<<"ws serv got and broard msg:"<<nmsg<<cseq;
emit this->onWSMessage(nmsg);
return 0;
}
int WebSocketClient2::lws_callback_vopp(struct libwebsocket_context * ctx,
struct libwebsocket *wsi,
enum libwebsocket_callback_reasons reason,
void *user, void *in, size_t len)
{
unsigned char buf[LWS_SEND_BUFFER_PRE_PADDING + 4096 +
LWS_SEND_BUFFER_POST_PADDING];
int l;
int n;
std::string str1, str2;
struct client_session_user_data *ssd = (struct client_session_user_data*)user;
WebSocketClient2 *wsc = (WebSocketClient2*)(libwebsocket_context_user_data(ctx));
switch (reason) {
case LWS_CALLBACK_CLOSED:
fprintf(stderr, "mirror: LWS_CALLBACK_CLOSED\n");
if (ssd->pc != NULL) {
delete ssd->pc; ssd->pc = NULL;
}
wsc->lws_connection_closed(wsi);
break;
case LWS_CALLBACK_CLIENT_ESTABLISHED:
// 因为在调用libwebsocket_client_connect的时候,事件循环还没有启动,
// 所以事件不会传递出来。
qLogx()<<"connection state:"
<<libwebsockets_remaining_packet_payload(wsi)
<<libwebsocket_get_socket_fd(wsi)
<<libwebsocket_get_connect_state(wsi);
ssd->pc = new PackageCombiner;
wsc->lws_new_connection_established(wsi);
/*
* start the ball rolling,
* LWS_CALLBACK_CLIENT_WRITEABLE will come next service
*/
// libwebsocket_callback_on_writable(ctx, wsi);
break;
case LWS_CALLBACK_CLIENT_RECEIVE:
/* fprintf(stderr, "rx %d '%s'\n", (int)len, (char *)in); */
// wsc->lws_ws_message_ready(wsi, (char*)in, len);
str1 = std::string((char*)in, len);
ssd->pc->save_fragment(str1);
if (ssd->pc->is_package_finish(str1)) {
str2 = ssd->pc->get_full_package(str1);
strncpy(ssd->full_message, str2.c_str(), sizeof(ssd->full_message)-1);
n = wsc->lws_ws_message_ready(wsi, ssd->full_message, str2.length());
}
break;
case LWS_CALLBACK_CLIENT_WRITEABLE:
// l = sprintf((char *)&buf[LWS_SEND_BUFFER_PRE_PADDING],
// "c #%06X %d %d %d;",
// (int)random() & 0xffffff,
// (int)random() % 500,
// (int)random() % 250,
// (int)random() % 24);
// libwebsocket_write(wsi,
// &buf[LWS_SEND_BUFFER_PRE_PADDING], l, LWS_WRITE_TEXT);
// /* get notified as soon as we can write again */
// libwebsocket_callback_on_writable(ctx, wsi);
libwebsocket_callback_on_writable(ctx, wsi);
// /*
// * Without at least this delay, we choke the browser
// * and the connection stalls, despite we now take care about
// * flow control
// */
// usleep(200);
break;
default:
break;
}
return 0;
}
void WebSocketClient2::run()
{
int iret = 0;
bool bret = false;
int tcnt = 0;
// init only now
bret = this->connectToServerImpl(this->m_uri);
if (bret == false) {
qLogx()<<"returnted "<<bret;
return;
}
// qLogx()<<"enter client service loop "<<bret;
// while (!this->quit_cli_loop) {
// qLogx()<<"ws client serviceing...";
// iret = libwebsocket_service(this->m_lws_ctx, 2000);
// qLogx()<<iret;
// // qDebug()<<__FILE__<<__LINE__<<__FUNCTION__;
// if (iret == 0) {
// // ok, success
// } else {
// // listen socket deak
// qDebug()<<__FILE__<<__LINE__<<__FUNCTION__<<"Listen socket maybe dead."
// <<"Need restart this server.";
// }
// if (this->m_wsi != NULL) {
// QString a = QString("abcdddddd %1").arg(++tcnt);
// qLogx()<<"Sending :"<<a;
// this->sendMessage(a.toAscii());
// }
// }
// 这样的话,QThread::exec没有执行,则该线程的信号/槽不能使用。
// while (!this->quit_cli_loop) {
// bret = on_wsc_service_loop();
// qLogx()<<bret;
// }
this->exec();
}
void WebSocketClient2::on_myself_started()
{
moveToThread(this); // 非常重要的操作,在这句之前,运行在主界面线程,在这句之后,运行在该线程之内。
qLogx()<<"";
// 使用先启动service,后启动连接的方法,这样还可收到连接建立的事件, LWS_CALLBACK_ESTABLISHED
// 启动service
QTimer *loop_timer = new QTimer();
QObject::connect(loop_timer, SIGNAL(timeout()), this, SLOT(on_wsc_service_loop()));
loop_timer->start(1000);
// 连接到服务器
QTimer::singleShot(30, this, SLOT(on_wsctx_inited()));
}