482 lines
10 KiB
C++
482 lines
10 KiB
C++
#include "WsUser.h"
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#include "WebServer.h"
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#include "MsgLoop.h"
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#include "Manager.h"
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#include "../../base/HGInfo.h"
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#include "sha1.h"
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#include "base64.h"
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#if defined(HG_CMP_MSC)
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WsUser::WsUser(class WebServer *server, HGUInt id, const char *ip, uint16_t port, SOCKET sockConn)
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#else
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WsUser::WsUser(class WebServer *server, HGUInt id, const char *ip, uint16_t port, int sockConn)
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#endif
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: WebUser(server, id, ip, port, sockConn)
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{
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}
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WsUser::~WsUser()
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{
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}
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void WsUser::HandleCmd(const WsCmdParam* param)
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{
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// 解析param->data
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// 处理
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// SendResponse
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}
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void WsUser::ThreadFunc()
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{
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HGBase_WriteInfo(HGBASE_INFOTYPE_DESC, "WsUser::ThreadFunc");
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char chBuffer[2048];
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const char* pBuffer = chBuffer;
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int nBufferSize = 0;
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bool bConnect = false;
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unsigned char connectDataTail[4] = { '\r', '\n', '\r', '\n' };
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unsigned int connectDataTailLen = 0;
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std::string connectData;
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uint8_t* pData = NULL;
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int nDataSize = 0;
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uint8_t* pDataEx = NULL;
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int nRemainSize = 0;
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uint8_t headData[20];
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uint32_t nHeadDataLen = 0;
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uint8_t vMask[4];
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uint32_t nMaskCount = 0;
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bool bHandle = false;
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std::vector<uint8_t> vAllData;
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while (1)
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{
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if (0 == nBufferSize)
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{
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int len = recv(m_sockConn, chBuffer, 2048, 0);
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if (len <= 0)
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{
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// 这里跳出，可能是服务器关闭了socketConn，或者客户端关闭了socket，或者网络断开
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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else
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{
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pBuffer = chBuffer;
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nBufferSize = len;
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}
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}
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assert(nBufferSize > 0);
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if (!bConnect)
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{
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unsigned char b = *pBuffer;
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++pBuffer;
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--nBufferSize;
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connectData.push_back(b);
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if (b == connectDataTail[connectDataTailLen])
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{
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++connectDataTailLen;
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}
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else
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{
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connectDataTailLen = 0;
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if (b == connectDataTail[connectDataTailLen])
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{
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++connectDataTailLen;
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}
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}
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if (4 == connectDataTailLen)
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{
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connectDataTailLen = 0;
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bool shakeRet = ShakeHand(connectData);
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connectData.clear();
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if (!shakeRet)
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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bConnect = true;
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}
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}
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else
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{
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if (NULL == pData)
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{
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assert(0 == nDataSize);
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uint8_t b = *pBuffer;
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++pBuffer;
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--nBufferSize;
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headData[nHeadDataLen] = b;
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++nHeadDataLen;
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if (1 == nHeadDataLen)
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{
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if ((0x80 | 0x08) == headData[0]) // 断开连接
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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else if ((0x80 | 0x09) == headData[0]) // PING帧
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{
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//
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}
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else if ((0x80 | 0x0A) == headData[0]) // PONG帧
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{
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//
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}
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else if ((0x00 | 0x01) == headData[0] || (0x00 | 0x02) == headData[0] || (0x00 | 0x00) == headData[0] || (0x80 | 0x00) == headData[0]
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|| (0x80 | 0x01) == headData[0] || (0x80 | 0x02) == headData[0]) // 数据帧
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{
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if ((0x80 | 0x00) == headData[0] || (0x80 | 0x01) == headData[0] || (0x80 | 0x02) == headData[0])
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{
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// 分片结束
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bHandle = true;
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}
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else
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{
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// 分片帧
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bHandle = false;
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}
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}
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else // 帧错误，断开连接
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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}
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else if (2 == nHeadDataLen)
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{
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if (0 == (headData[1] & 0x80)) // 必须经过掩码处理
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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if ((0x80 | 0x09) == headData[0]) // PING帧
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{
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if (0x80 != headData[1])
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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}
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else if ((0x80 | 0x0A) == headData[0]) // PONG帧
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{
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if (0x80 != headData[1])
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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}
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else
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{
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if ((headData[1] & 0x7F) <= 125)
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{
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uint32_t nCmdSize = (headData[1] & 0x7F);
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nHeadDataLen = 0;
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if (0 == nCmdSize)
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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nDataSize = nCmdSize;
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nRemainSize = nCmdSize;
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pData = new uint8_t[nDataSize];
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pDataEx = pData;
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}
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}
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}
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else if (4 == nHeadDataLen)
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{
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if ((0x80 | 0x09) == headData[0]) // PING帧
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{
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//
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}
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else if ((0x80 | 0x0A) == headData[0]) // PONG帧
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{
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//
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}
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else
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{
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if ((headData[1] & 0x7F) == 126)
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{
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uint32_t nCmdSize = ntohs(*(uint16_t*)&headData[2]);
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nHeadDataLen = 0;
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if (0 == nCmdSize)
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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nDataSize = nCmdSize;
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nRemainSize = nCmdSize;
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pData = new uint8_t[nDataSize];
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pDataEx = pData;
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}
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}
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}
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else if (6 == nHeadDataLen)
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{
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if ((0x80 | 0x09) == headData[0]) // PING帧
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{
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nHeadDataLen = 0;
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Pong();
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}
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else if ((0x80 | 0x0A) == headData[0]) // PONG帧
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{
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nHeadDataLen = 0;
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}
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}
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else if (10 == nHeadDataLen)
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{
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if ((headData[1] & 0x7F) == 127) // 这里一定会等于127
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{
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uint32_t nCmdSizeHigh = ntohl(*(uint32_t*)&headData[2]);
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uint32_t nCmdSize = ntohl(*(uint32_t*)&headData[6]);
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nHeadDataLen = 0;
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if ((0 != nCmdSizeHigh) || (0 == nCmdSize))
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{
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WebMsg msg;
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msg.msgId = WEB_MSGID_DISCONNET;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = NULL;
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GetLoop()->Send(&msg);
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break;
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}
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nDataSize = nCmdSize;
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nRemainSize = nCmdSize;
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pData = new uint8_t[nDataSize];
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pDataEx = pData;
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}
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}
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}
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else
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{
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if (4 != nMaskCount)
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{
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uint8_t b = *pBuffer;
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++pBuffer;
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--nBufferSize;
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vMask[nMaskCount] = b;
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++nMaskCount;
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}
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else
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{
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int nWriteSize = HGMIN(nBufferSize, nRemainSize);
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memcpy(pDataEx, pBuffer, nWriteSize);
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pBuffer += nWriteSize;
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nBufferSize -= nWriteSize;
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pDataEx += nWriteSize;
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nRemainSize -= nWriteSize;
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if (0 == nRemainSize)
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{
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assert(pDataEx == pData + nDataSize);
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for (int i = 0; i < nDataSize; ++i)
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{
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int j = i % 4;
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pData[i] = pData[i] ^ vMask[j];
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vAllData.push_back(pData[i]);
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}
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delete[] pData;
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pData = NULL;
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nDataSize = 0;
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nMaskCount = 0;
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if (bHandle)
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{
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WsCmdParam *param = new WsCmdParam;
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param->data = new HGByte [vAllData.size()];
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param->size = (HGUInt)vAllData.size();
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memcpy(param->data, &vAllData[0], vAllData.size());
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WebMsg msg;
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msg.msgId = WEB_MSGID_WSCMD;
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msg.svrId = m_server->GetId();
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msg.usrId = m_id;
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msg.param = param;
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bool b = GetLoop()->Send(&msg);
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if (!b)
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{
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delete[] param->data;
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param->size = 0;
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delete param;
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}
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bHandle = false;
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vAllData.clear();
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}
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}
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}
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}
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}
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}
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if (NULL != pData)
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{
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delete[] pData;
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pData = NULL;
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nDataSize = 0;
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nMaskCount = 0;
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}
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}
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bool WsUser::ShakeHand(const std::string& head)
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{
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std::string requestMethod;
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std::string requestURIPath;
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HttpPairs requestURIQueryInfos;
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std::string requestURIFragment;
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std::string httpVersion;
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HttpPairs headInfos;
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HttpHead::AnalysisHead(head, requestMethod, requestURIPath, requestURIQueryInfos,
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requestURIFragment, httpVersion, headInfos);
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if ("Upgrade" != HttpHead::GetValue(headInfos, "Connection"))
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return false;
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if ("websocket" != HttpHead::GetValue(headInfos, "Upgrade"))
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return false;
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std::string key = HttpHead::GetValue(headInfos, "Sec-WebSocket-Key");
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if (key.empty())
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return false;
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key += "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
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unsigned int message_digest[5];
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SHA1 sha;
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sha.Reset();
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sha << key.c_str();
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sha.Result(message_digest);
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for (int i = 0; i < 5; ++i)
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message_digest[i] = htonl(message_digest[i]);
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std::string serverKey = base64_encode((const unsigned char*)message_digest, 20);
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std::string handShakeResp = "HTTP/1.1 101 Switching Protocols\r\n";
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handShakeResp += "Upgrade: websocket\r\n";
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handShakeResp += "Connection: Upgrade\r\n";
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handShakeResp += "Sec-WebSocket-Accept:";
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handShakeResp += serverKey;
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handShakeResp += "\r\n\r\n";
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send(m_sockConn, handShakeResp.c_str(), (int)handShakeResp.length(), 0);
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return true;
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}
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void WsUser::Pong()
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{
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uint8_t vHead[2];
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vHead[0] = 0x80 | 0x0A;
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vHead[1] = 0;
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HGBase_EnterLock(m_cs);
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send(m_sockConn, (const char *)vHead, 2, 0);
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HGBase_LeaveLock(m_cs);
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}
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bool WsUser::SendResponse(const HGByte* data, HGUInt size, HGBool text)
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{
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if (NULL == data || 0 == size)
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{
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return false;
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}
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uint32_t nHeadLen = 0;
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uint8_t vHead[20] = { 0 };
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vHead[0] = text ? (0x80 | 0x01) : (0x80 | 0x02);
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if (size <= 125)
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{
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vHead[1] = (uint8_t)size;
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nHeadLen = 2;
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}
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else if (size <= 0xFFFF)
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{
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vHead[1] = 126;
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uint16_t payloadLength16b = htons((uint16_t)size);
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memcpy(&vHead[2], &payloadLength16b, 2);
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nHeadLen = 4;
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}
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else
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{
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vHead[1] = 127;
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vHead[2] = 0;
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vHead[3] = 0;
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vHead[4] = 0;
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vHead[5] = 0;
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uint32_t payloadLength32b = htonl(size);
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memcpy(&vHead[6], &payloadLength32b, 4);
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nHeadLen = 10;
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}
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HGBase_EnterLock(m_cs);
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send(m_sockConn, (const char*)vHead, nHeadLen, 0);
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send(m_sockConn, (const char*)data, size, 0);
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HGBase_LeaveLock(m_cs);
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return true;
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}
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